複合環境下における破壊の物理化学と制御システム

2001 Fiscal Year Annual Research Report

• Project/Area Number: 11CE2003
• Research Institution: Tohoku University
• Principal Investigator: 庄子 哲雄 東北大学, 大学院・工学研究科, 教授 (80091700)
• Co-Investigator(Kenkyū-buntansha): 粉川 博之 東北大学, 大学院・工学研究科, 教授 (10133050) ; 渡邉 豊 東北大学, 大学院・工学研究科, 助教授 (10260415) ; 横堀 壽光 東北大学, 大学院・工学研究科, 教授 (00124636) ; 北村 正晴 東北大学, 大学院・工学研究科, 教授 (00005422) ; 北原 道弘 東北大学, 大学院・工学研究科, 教授 (60135522)
• Keywords: 破壊の物理化学 / ローカルアプローチ / 局所情報計測 / き裂先端溶液化学 / 粒界化学 / 微小欠陥 / 環境助長割れ / 接触電気抵抗

Research Abstract

平成13年度においては、以下の具体的課題について研究を推進した。
(1)破壊の物理化学的機構解明
(i)破壊の発生、進展の数値シミュレーション研究と実験的検証
a.理論式を用いたステンレス鋼の応力腐食割れ進展速度の予測に関する研究き裂進展速度の理論的予測の妥当性の検証(達成度70%)
b.軽水炉中における照射誘起応力腐食割れの支配因子と寿命予測に関する研究材料組成、特にSi、P、Sなどの微量元素及び水素の環境助長割れ感受性に及ぼす影響を明らかにし、その機構の解明(達成度60%)
c.3次元き裂進展の有限要素解析コードの開発複雑な境界条件下のき裂進展予測のための有限要素き裂進展シミュレーションコードの開発(達成度95%)と3次元き裂進展挙動解析(達成度70%)
(ii)転位群の動力学による水素効果の評価水素誘起型き裂進展モデルの構築と進展速度予測式の開発(達成度40%)
(iii)複雑系破壊研究複数き裂群の進展、合体解析の数値解析コードの開発と局所化過程の解明(達成度60%)
(II)局所情報計測技術の高精度化研究
(1)局所材料情報計測
(i)経年劣化の非破壊計測・評価研究
a.局所表面情報計測に基づく環境助長割れ機構の解明に関する研究すべり帯形成に伴う活性溶解と局部電池形成と皮膜情報計測(達成度60%)
b.局所表面情報計測に基づく環境中疲労損傷の機構解明に関する研究繰り返し負荷に伴う固執すべり帯の形成と酸化挙動の解析(達成度70%)
c.局所材料情報計測に基づく熱遮へいコーティング劣化機構解析に関する研究熱遮へいセラミックスコーティング部の酸化挙動の解明とその非破壊計測・評価(達成度70%)
(ii)ナノ結晶破壊制御研究粒界設計と粒界特性分布の制御による粒界強度及び粒界腐食特性の制御と高性能化(達成度60%)
(iii)高環境耐久性材料開発研究「加工熱処理による粒界制御工学」粒界構造制御による高耐粒界腐食性オーステナイト系ステンレス鋼の開発(達成度60%)
(2)局所環境情報計測
(i)表面劣化機構研究
a.応力負荷下における酸化皮膜のその場計測法による皮膜破壊・再不活性化機構の解明に関する研究酸化皮膜の保護性に及ぼす負荷応力及び動的ひずみの影響と環境助長割れ発生との相関(達成度60%)
b.超臨界水中での合金の腐食劣化研究超臨界水中における金属材料の適合性研究と劣化メカニズムの解明とモデル化(達成度70%)
(ii)局所環境情報計測・評価研究
a.き裂開口部およびき裂内溶液のラマン分光法によるin-situ計測手法の開発ラマン分光法による局所表面皮膜の評価と局所溶液化学のin-situ計測(達成度70%)
b.BWR環境を模擬した304Lステンレス鋼のき裂先端溶液化学に及ぼす溶存酸素、温度及び時間の影響に関する研究き裂先端におけるアニオン種の濃縮の直接計測とその影響因子の評価(達成度80%)
(3)局所力学情報計測
(i)局所応力の計測に関する研究
ナノ領域弾性特性評価及び超音波AFM超音波AFMによる極微小領域の弾性特性評価とその応用に関する研究(達成度80%)
(4)局所欠陥情報計測
(i)集中誘導型交流電位差法、磁気光学(ホール素子)法、微小アンテナ法、マイクロ波法、渦電流探傷法、超音波法による微小き裂の進展挙動の計測
a.集中誘導型交流電位差法(達成度90%)b.磁気光学(ホール素子)法(達成度90%)c.微小アンテナ法(達成度80%)d.マイクロ波法(達成度80%)e.渦電流探傷法(達成度70%)f.超音波法(達成度70%)
(ii)溶接部における欠陥の非破壊計測確率諭的欠陥評価(達成度60%)
(III)高温高圧水中におけるメカノケミカルなき裂の発生・進展・合体過程の連続的観測に関する実験的研究とデータベース化による診断手法としての可能性検討
(1)複合環境下におけるき裂発生・進展過程のダイナミクスに関する研究電気化学的過渡信号の計測・評価による環境助長割れ発生・進展のモニタリング手法開発(達成度60%)
(2)複合環境強度性能予測システムの開発と強度発現機構の解明に関する研究(達成度70%)
(3)安全システム工学的研究--局所情報とマクロプラント挙動の相関研究--システム安全学的手法による局所情報とマクロプラント挙動の相関をシステム安全裕度評価テストベンチにより検証する(達成度50%)

Research Products

• [Publications] T.Shoji, Q.J.Peng, Y.Takeda, J.Kwon, M.Takegoshi: "Physics and Chcmistry of Fracture and Role of Fracture Mechanics in Failure Prevention"INTERNATIONAL SYMPOSIA ON MATERIALS SCIENCE FOR THE 21ST CENTURY(ISMS-21), May 21-26. 2001 (Osaka Japan). The Society of Materials Science. Japan. 131-138 (2001)
• [Publications] Yoichi TAKEDA, Tetsuo SHOJI: "Change in Work Function of Fatigue Damaged Surface and Its Relevance to Fatigue Failure"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology Experimental Mechanics '01 (ATEM'01)(October 20-22,2001,Sendai International Center, Japan). 1063-1067 (2001)
• [Publications] Yoichi TAKEDA, Takashi MASUDA, Tetsuo SHOJI: "In-Situ Measurement of Contact Electric Resistance of Oxide Films on Sensitised 304 Stainless Steel during Slow Strain Rate Test in High Temperature Water"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01 (ATEM'01)(October 20-22,2001,Sendai International Center, Japan). 114-119 (2001)
• [Publications] T.Shoji, J.Kwon, Q.Peng, G.F.Li: "Environmental effects on fracture and sub-critical crack growth evaluation for lifetime prediction"Proceedings of 10^<TH> International Congress on Fracture (ICF-10, Advances in Fracture Research) 2-6 December 2001, Honolulu, Hawaii, USA, pub. Elsevier Science Ltd., Oxford, UK. (CD-ROM). (2001)
• [Publications] G.F.Li, K.Ohashi, T.Shoji: "Effect of yield strength on stress corrosion crack growth of stainless steel in high temperature water environment"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01 (ATEM'01)(October 20-22,2001,Sendai International Center, Japan). 88-92 (2001)
• [Publications] R.Kanetani, G.F.Li, T.Shoji: "Environmentally assisted cracking of simulated alloys for grain boundaries of irradiated 304 stainless steel in high temperature water cnvironments"Fracture and Strength '01(APCFS'01) and International Conference on Advanced Technoligy in Experimental Mechanics '01 (ATEM'01)(October 20-22,2001,Sendai International Center, Japan). 1091-1096 (2001)
• [Publications] G.F.Li, T.Shoji: "Quantitative evaluation of hardening effect on crack growth rate in high temperature water tor light water reactor"Proceedings of International Symposium of Young Scholars on Mechanics and Materials Engineering for Science and Experiments, Ed. Y.Zhou et al. 11-16, August, 2001, Changsha/Zhangjiajie, Hunan, China. 466-469 (2001)
• [Publications] G.F.Li, R.Kanetani, T.Shoji: "Effects of Water Chemistry, Impurities and Thermal Treatment on Stress Corrosion Cracking of Austenitic Steels That Simulate Grain Boundary Layer of Irradiated 304L"Proceedings of Tenth International Conference on Environmental Degradation on Materials in Nuclear Power Systems -Water Reactors, 5-9 August. 2001, Lake Tahoe, Nevada, USA, pub. NACE. (in press).
• [Publications] Qunjia Peng, Junhyun Kwon, Guangfu Li, Tetsuo Shoji: "Inverse Analysis of Crack Growth Kinetics of Sensitized 304L Stainless Steel in Simulated Boiling Water Reactor Environment for Quantitative Prediction of Stress Corrosion Cracking Behavior"Proc.of the 10th International Symposium on Environmental Degradation of Materials in Nuclear Power Systems-Water Reactors, 2001, Lake Tahoe, USA.. (in press).
• [Publications] Qunjia Peng, Junhyun Kwon, Tetsuo Shoji: "Analysis of crack growth kinetics and crack tip strain rates of sensitized type 304 stainless steel in simulated boiling water reactor environment-experiments and theory"Proc. of Asian Pacific Conterence on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01 (ATEM'01) (October 20-22, 2001, Sendai International Center, Japan). 82-87 (2001)
• [Publications] J.Kwon, Q.Peng, T.Shoji: "Development of methodologies for the quantitative prediction of environmentally assisted crack growth rate of stainless steels in high-temperature oxygenated waterer"Corrosion. (in press).
• [Publications] 小川和洋, 庄子哲雄, 千葉秀樹, 阿部宏紀, 鳥越泰治: "高温環境下における熱遮へいコーティング経年劣化の非破壊評価"非破壊検査. 50・3. 164-169 (2001)
• [Publications] Kazuhiro Ogawa, Takashi Masuda, Tetsuo Shoji: "Kinetics of Thermally Grown Oxide at Interface Between Thermal Barrier Coatings and MCrAlY Bond Coatings"Proceedings 01 the International Thermal Spray Conicrenec 2001, Singapore. 187-194 (2001)
• [Publications] K.Ogawa, T.Shoji, H.Aoki, N.Fujita, T.Torigie: "Mechanistic Understanding for Degraded Thermal Barrier Coatings"JSME International Journal, Series A. 144・4. 507-513 (2001)
• [Publications] Kazuhiro Ogawa, Noritake Gotoh, Tetsuo Shoji, Minoru Sato: "High Temperature Oxidation Behavior of the Interface Between Thermal Barrier Coatings and MCrA1Y Bond Coatings"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01 (ATEM'01) (October 20-22, 2001, Sendai International Center Japan). 297-302 (2001)
• [Publications] Y.Ogawa, T.Shoji, S.Komazaki, K.Ogawa, M.Maruyama: "Thermal Aging Embrittlement of Service-Exposed Udimet 520 Gas Turbine Blade"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01 (ATEM'01) (October 20-22, 2001, Sendai International Center Japan). 2. 1086-1090 (2001)
• [Publications] N.Gotoh, K.Ogawa, T.Shoji, H.Togashi: "Nondestructive Evaluation of High-Temperature Oxidation Behavior in Thermal Barrier Coatings"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01 (ATEM'01) (October 20-22, 2001, Sendai International Center Japan). 1. 303-308 (2001)
• [Publications] Kazuhiro Ogawa, Toshiki Kato, Tctsuo Shoji, Hideki CHIBA: "Improvement of Interface Bond Strength Between Ceramic Thermal Barrier Coatings and Metallic Bond Coatings"Proceedings of the International Thermal Spray Conference 2002, Essen, Germany. (in press).
• [Publications] N.Gotoh, K.Ogawa, T.Shoji, H.Chiba: "NDE of Degradation in Thermal Barrier Coatings Under The Influence of a High Temperature Environment"Proceedings of International Conference on Advances in Life Assessment and Optimization of Fossil Power Plants, Orlando, USA, (2002). (in press).
• [Publications] Kizuhiro OGAWA, Toshik iKATO, Tetsuo SHOJI: "Improvement ot Bonding Strength for Interface Between Thermal Barrier Coatings and Bond Coatings"Proceedings of International Conference on Advances in Life Assessment and Optimization of Fossil Power Plants, Orlando, USA, (2002). (in press).
• [Publications] Kazuhiro OGAWA, Noritake GOTOH, Tetsuo SHOJI: "Mechanistic Analysis for Degradation of Thermal Barrier Coatings"Proceedings of International Conference on Advances in Life Assessment and Optimization of Fossil Power Plants, Orlando, USA, (2002). (in press).
• [Publications] Z.Lu, G.Feng, W.Yang: "Predicting SCC Behaviour ot Austenitic Stainless Steels in High Temperature Water by Empirical Learning Methods"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 108-113 (2001)
• [Publications] M.Takegoshi, Y.Watanabe, T.Shoji: "The In-Situ Measurement of a Local Chemical Reaction by Raman Spectroscopy-Time Dependent Enrichment of Chloride Ions on the Surface of 304L Stainless Steel"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 76-81 (2001)
• [Publications] S.Suzuki, T.Shoji: "SCC Growth Behaviour ot Surface Cracked Specimen in High Temperature Water"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 93-101 (2001)
• [Publications] J-Y.Lee, M-S.Kim, M-P.Kang, D-J.Kim, W-H.Choe, T.Shoji, H.Kato, K.Kageyama: "Development of Magnetic Camera Using 2-D Arrayed Hall Elements"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 222-227 (2001)
• [Publications] J.Park, T.Shoji: "NDE of Fatigue Damage by Induced Current Focusing Potential Drop"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 270-274 (2001)
• [Publications] Y.Sato, T.Shoji: "Estimation of Crack Detectability of Remotely Induced Current Potential Drop Technique Based on POD Curve"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 275-280 (2001)
• [Publications] K.Yagi, Y.Sato, T.Shoji: "Crack Detection by Means of Electromagnetic Field Measurement with Micro Antennas"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 1. 281-285 (2001)
• [Publications] Shin-ichi Komazaki, Maribel L.Saucedo-Munoz, Toru Takahashi, Toshiyuki Hashida, Tetsuo Shoji: "Small Punch Creep Behavior of Service-Exposed SUS316HTB Superheater Tubes of Fossil Boilers"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 316-321 (2001)
• [Publications] J-Y.Lee, M-P.Kang, M-S.Kim, D-J.Kim, W-H.Choe, T.Shoji: "A Study on Development of Safety Monitoring System for Structure Using a Laser and 2-D Arrayed Photo Sensors"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 2. 815-820 (2001)
• [Publications] S-J.Kwon, T.Shoji: "A study of Braking Pcrformancc of Brake Disk Pad tbr Railway Vehicle Considering the Grove Number of Friction Surface"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01)(October 20-22, 2001, Sendai International Center, Japan). 2. 1103-1108 (2001)
• [Publications] 小川和洋, 後藤憲毅, 庄子哲雄: "TBC/MCrAlY界面の高温酸化挙動評価"日本溶射協会第73回全国講演大会講演論文集. 31-32 (2001)
• [Publications] 加藤俊樹, 小川和洋, 庄子哲雄: "耐はく離性に優れた熱遮へいコーティングの開発"日本溶射協会第73回全国講演大会講演論文集. 33-34 (2001)
• [Publications] 小川和洋, 加藤俊樹, 後藤憲毅, 庄子哲雄: "YSZ/MCrAlYCeSi熱遮へいコーティングの高温酸化挙動評価"日本溶射協会第74回全国講演大会講演論文集. 39-40 (2001)
• [Publications] 駒崎慎一, 岸繁男, 庄子哲雄, 樋口康二郎, 鈴木康史: "電気化学的手法によるW強化型9%Crフェライト系耐熱鋼のクリープ損傷評価"材料. 50・5. 503-509 (2001)
• [Publications] Shin-ichi KOMAZAKI, Shigeo KISHI, Tetsuo SHOJI, Tetsuo KUMAZAWA, Kojiro HIGUCHI, Koshi SUZUKI: "Influence of Pre-Aging on Creep Rupture Strength of Tungsten Alloyed 9%Cr Ferritic Steel and Creep Damage Evaluation by Electrochemical Method"JSME International Journal A. 45・1. 30-38 (2002)
• [Publications] Shin-ichi KOMAZAKI, Shigeo KISHI, Tetsuo SHOJI, Tetsuo KUMAZAWA, Kojiro HIGUCHI, Koshi SUZUKI: "Influence of Pre-Aging on Creep Rupture Strength of Tungsten Alloyed 9%Cr Ferritie Steel and Creep Damage Evaluation by Electrochemical Method"Proceeding 01 the 7^<th> International Conference on Creep and Fatigue at Elevated Temperature, Japan Society of Mechanical Engineers. 341-345 (2001)
• [Publications] Shin-ichi KOMAZAKI, Tetsuo SHOJI, Kazumune TAKAMURA, Norio FUJITA, Hiroyuki ABE, Ikuo OKADA: "Evaluation of Thermal Aging Embrittlement of DS Ni-Base Superalloy by Small Punch Testing Methods"Proceedings of Charpy Centenary Conference (CCC-2001), Poitiers, France, 2-5 October. 283-290 (2001)
• [Publications] Shin-ichi KOMAZAKI, Shigeo KISHI, Tetsuo SHOJI, Tetsuo KUMAZAWA, Kojiro HIGUCHI, Koshi SUZUKI: "Influence of Pre-Aging on Creep Rupture Strength of Tungsten Alloyed 9%Cr Ferritic Steel and Creep Damage Evaluation by Electrochemical Method"JSME International Journal, Series A. 45・1. 30-38 (2002)
• [Publications] Yuuya OGAWA, Tetsuo SHOJI, Shin-ichi KOMAZAKI, Kazuhiro OGAWA, Masahide MARUYAMA: "Thermal Aging Embrittlement of Service-Exposed Udimet 520 Gas Turbine Blade"Proceedibgs of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM'01) Sendai, Japan 20-22 October, 2001. 1086-1090 (2001)
• [Publications] S.Komazaki, S.Kishi, T.Shoji, Y Ogawa, H.Kimura: "Nondestructive Evaluation of Creep Damage and Thermal Aging Embrittlement in Tungsten Alloyed 9%Cr Ferritic Steels Using an Electrochemical Technique"Proceedings ol International Conference on Advances in Life Assessment and Optimization of Fossil Power Plants, EPRI, March 11-13, 2002, Orlando, Florida. (in press).
• [Publications] S.Komazaki, T.Shoji, H, Kimura: "A Newly Developed Electrochemical Technique for the Creep Life Prediction of DS Ni-Base Superalloy Used in Advanced Gas Turbine Blades"Proceedings of International Conference on Advances in Life Assessment and Optimization of Fossil Power Plants, EPRI, March 11-13, 2002, Orlando, Florida. (in press).
• [Publications] Y.C.Zhou, T.Hashida: "Thermal Fatigue in Thermal Barrier Coating"Proceedings of the 7^<th> International Contereiice on Creep and Fatigue at Elevated Temperatures, Juiic 3-8, 2001, National Institute for Materials Science, Tsukuba, Japan. 641-646 (2001)
• [Publications] Y.C.Zhou, T.Hashida: "Coupled Effects of Temperature Gradient and Oxidation on Thermal Stress in Thermal Barrier Coating System"International Journal of Solids and Structures. 38. 4235-4264 (2001)
• [Publications] Y.C.Zhou, T.Hashida: "Determination of Interface Fracture Toughness by Blister Tests: Theoretical Model"Proceedings of Sixth International Conference on Biaxial/Multiaxial Fatigue & Fracture, Volume I, Edited by Manuel Moreira de Freitas, (June 25-28, 2001, Lisboa, Portugal). 355-362 (2001)
• [Publications] Shin-ichi Komazaki, Maribel L.Saucedo-Munoz, Toru Takahashi, Toshiyuki Hashida, Tetsuo Shoji: "Small Punch Creep Behavior of Service-Exposed SUS316HTB Superheater Tubes of Fossil Boilers"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM '01) (October 20-22, 2001, Sendai International Center, Japan). 316-321 (2001)
• [Publications] Akihide Saimoto, Yasufumi Imai, Toshiyuki Hashida: "Simulation of Complexity in Failure Process of Rock under Biaxial Compression"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanic '01(ATEM '01) (October 20-22, 2001, Sendai International Center, Japan). 551-556 (2001)
• [Publications] Tetsuro Tonomori, Akira Yoshida, Yichun Zhou, Lihui Liu, Toshiyuki Hashida: "Fracture Characteristic of Plasma-Sprayed Thermal Barrier Coating in Tension and Bending Test"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanic '01(ATEM '01) (October 20-22, 2001, Sendai International Center, Japan). 1057-1062 (2001)
• [Publications] Kazushi Sato, Akihide Saimoto, Toshiyuki Hashida, Yasutumi Imai: "Crack Growth of Non-Coplanar Parallel Crack Array and Tension Soflening Model"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanic '01(ATEM '01) (October 20-22, 2001, Sendai International Center, Japan). 157-161 (2001)
• [Publications] Y.C.Zhou, T.Hashida: "Failure Characteristics of Thermal Barrier Ceramic Coating at High Temperature"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanic '01(ATEM '01) (October 20-22, 2001, Sendai International Center, Japan). 292-296 (2001)
• [Publications] Y.C.Zhou, T.Hashida: "Thermal Fatigue in Thermal Barrier Coating"JSME International Journal, Series A,. 45・1. 57-64 (2001)
• [Publications] 横堀 壽光: "磯貝毅転位群の動力学による疲労き裂成長理論におけるき裂先端特異応力場の影響"日本材料強度学会誌. 34・1. 1-10 (2001)
• [Publications] A.Toshimitsu Yokobori, Jr, Tsuyoshi Satoh, Masaynki Shibata, Masaaki Tabuchi, Akio Fuji, Takeo Yokobori: "The characterization of creep crack growth rate and its life of TiAl inter-metallic compound with full lamellar microstructure"International Journal of Prossure Vessel and Piping. (in press).
• [Publications] A.Toshimitsu Yokolori, Jr, Masaaki Tabuchi, Akio Fuji, Mizuki Kikuchi, Takeo Yokobori: "The characterization of creep crack growth rate and its life of Cast TiAI Fe-V-B Alloys"Proc. of Asian Pacific Conference on Fracture and Strength '01 (APCFS'01) and International Conference on Advanced Technology in Experimental Mechanics '01(ATEM '01) (October 20-22, 2001, Sendai International Center, Japan). 1. 322-326 (2001)
• [Publications] A.T.Yokobori, Jr, J.C.Ha, T.Shoji, N.Taketomi, G.F.Li: "Stress corrosion cracking mechanism on the basis of the interaction model of dislocation and hydrogen around a crack tip"Advances in Fracturc Research, Proceeding of ICF10 Honolulu 2001. (CD-ROM). (2001)
• [Publications] A.Toshimitsu Yokobori, Jr, Yasurou Chiuda, Takanao Nemoto, Koji Satoh, Tetsuya Yamada: "The characteristics of hydrogen diffusion and concentration around a crack tip concerned with hydrogen embrittlement"Corrosion Science. 44. 407-424 (2002)
• [Publications] Y.Ju, S.Sanpei, M.Saka, H.Abe: "Microwave Measurement of Moisture in Encapsulant Resin of IC Packages"Nondestructive Characterization of Materials X, Elsevier Science. 129-132 (2001)
• [Publications] Y.Ju, K.Saruta, M.Saka, H.Abe: "Development of a Microwave Focusing Sensor for Nondestructive Evaluation of Materials"Proc. the 7th International Workshop on Electromagnetic Nondestructive Evaluation. 93-94 (2001)
• [Publications] M.Saka, M.A.Salam Akanda: "Sensitive Ultrasonic Testing of a Small Closed Crack, Abstract"International Conference on Complexity and Frontiers in Strength and Fracture. 47 (2001)
• [Publications] Y.Ju, M.Saka, H.Abe: "Nondestructive Inspection of a Small Area Delamination in IC Packages by Microwave Imaging"Proc. the Pacific Rim/ASME International Electronic Packiging Technicail Conference. (CD-ROM). (2001)
• [Publications] M.Saka, Y.Ju, D.Luo, H.Abe: "A Method of Sizing Small Fatigue Crack in Stainless Steel by Microwaves"Proc. Asian Pacific Contercncc of Fracture and Strength '01 and lntcrnational Conference on Advanced Technology in Experimental Mechanics '01. 1. 286-291 (2001)
• [Publications] S.Rcaz Ahmed, M.Saka: "Intfuence of Crack Length on the Ultrasonic Evaluation of Depth of Small Surface Cracks"Proc. Asian Pacific Contercncc of Fracture and Strength '01 and International Conference on Advanced Technology in Experimental Mechanics '01. 1. 253-257 (2001)
• [Publications] M.A.Salam Akanda, M.Saka: "Toward a Sensitive Detection and Sizing of Small Closed Cracks by Ultrasonic Shear Waves"Proc. Asian Pacific Contercncc of Fracture and Strength '01 and International Conference on Advanced Technology in Experimental Mechanics '01. 1. 258-263 (2001)
• [Publications] Y.Ju, M.Saka, D.Luo, H.Abe: "NDE of Closed Fatigue Crack on the Metal Surface by Microwaves"Proc. the 10th Asia-Pacific Conference on Non-Destructive Testing. Paper 996(CD-ROM). (2001)
• [Publications] Y.Ju.M.Saka, H.Abe: "NDI of Delamination in IC Packages Using Millimeter-Waves"IEEE Transsactions on Instrumentation and Measurement. 50・4. 1019-1023 (2001)
• [Publications] M.Saka, Y.Ju: "Sensitive Microwave Nondestructive Evaluation of Materials"Proc. 4th International Conference on Mechanical Engineering. 31-38 (2001)
• [Publications] Y.Ju, M.Saka, H.Abe: "Microwave Imaging of Delaminations in IC Packages"Review of Progress in Quantitative Nondestructive Evaluation. 21(in press).
• [Publications] M.Saka, Y.Ju, Y.Uchimura, H.Abe: "NDE of Small 3-D Surface Fatigue Cracks in Metals by Microwaves"Review of Progress in Quantitative Nondestructive Evaluation. 21(in press).
• [Publications] M.A.Salam Akanda, M.Saka: "Ultrasonic Shear Wave Technique for Sensitive Detection and Sizing of Small Closed Cracks"JSME International Journal. 45(in press).
• [Publications] 巨陽, 猿田賢治, 坂真澄, 阿部博之: "マイクロ波非破壊検査における集束センサの開発"非破壊検査. 50・6. 392-397 (2001)
• [Publications] 坂真澄, 巨陽, 羅大贏, 阿部博之: "マイクロ波による金属材料表面上の閉じた疲労き裂の非破壊評価"非破壊検査. 50・11. 607-611 (2001)
• [Publications] 猿田賢治, 巨陽, 坂真澄, 阿部博之: "マイクロ波集束センサにおける空間分解能の向上"日本非破壊検査協会平成13年度春季大会講演概要集. 61-62 (2001)
• [Publications] 内村泰博, 巨陽, 坂真澄: "二周波数法を用いた三次元疲労き裂の定量評価"日本非破壊検査協会平成13年度秋季大会講演概要集. 19-20 (2001)
• [Publications] 広沢容, 巨陽, 坂真澄: "マイクロ波コンパクト装置による材料非破壊評価"日本非破壊検査協会平成13年度秋季大会講演概要集. 21-22 (2001)
• [Publications] Tadao Watanabe: "External Field Applied Grain Boundary Engineering tor High Pertbrmance Materials"Proc. of the First Joint International Conference on Recrystallization and Grain Growth, Eds. G. Gottstein and D.A. Molodov, Springer-Verlag. 11-20 (2001)
• [Publications] S.YAMAURA, Y.FURUYA, T.WATANABE: "THE EFFECT OF GRAIN BOUNDARY MICROSTRUCTURE ON BARKHAUSEN NOISE IN FERROMAGNETIC MATERIALS"Acta mater. 49. 3019-3027 (2001)
• [Publications] 連川真弘, 川原浩一, 松崎隆, 渡邊忠雄: "微細組織制御に関わる粒界現象への磁場の影響"まてりあ. 40. 573-577 (2001)
• [Publications] 渡邊忠雄: "多結晶材料における粒界微細組織の解析と制御"まてりあ. 40. 617-622 (2001)
• [Publications] 渡邊忠雄: "21世紀に花開く粒界・界面設計制御"金属. 71. 997-1002 (2001)
• [Publications] Tadao WATANABE: "A General Approach to the Control of Grain Boundary Fracture in Brittle Materials"Proc. Asian Pacific Conference on FRACTURE and STRENGTH '01 (APCFS'01) and International Conference on ADVANCED TECHNOLOGY in EXPERIMENTAL MECHANICS '01 (atern'01), The Japan Society of Mechanical Engineers. 01・203. 126-133 (2001)
• [Publications] Koich KAWAHARA, Shinsuke MAEKAWA, Sadahiro TSUREKAWA, Tadao WATANABE: "High Temperature Deformation and Fracture in Ferromagnetic Fe-Co and Fe-Cr Alloys"Proc. Asian Pacific Conference on FRACTURE and STRENGTH '01 (APCFS'01) and International Conference on ADVANCED TECHNOLOGY in EXPERIMENTAL MECHANICS '01 (aterm'01), The Japan Society of Mechanical Engineers. 01・203. 134-139 (2001)
• [Publications] 連川貞弘, 渡邊忠雄: "FE-SEM/OIM法を用いた粒界微細組織の定量解析と粒界工学への応用"電子顕微鏡. 36. 99-105 (2001)
• [Publications] T.Matsuzaki, K.Harada, T.Sasaki, S.Tsurekawa, G.Palumbo: "The Control of Grain Boundary Microstructures by Application of Magnetic Field in Ferromagnetic Materials"Proc. of the 7th International Symposium on Advanced Physical Fields, Fabrication and Characterization ot Nano-Structures Materials. 342-345 (2001)
• [Publications] Yong-Sun Yi, Yutaka Watanabe, Tatsuo Kondo, Hiroshi Kimura, Minoru Sato: "OXIDATION RATE OF ADVANCED HEAT-RESISTANT STEELS FOR ULTRA SUPERCRITICAL BOILERS IN PRESSURIZED SUPERHEATED STEAM"Transactions of the ASME, Journal of Pressure Vessel Technology. 123. 391-397 (2001)
• [Publications] Masahiro Inui, Yutaka Watanabe, Tatsuo Kondo, Koshi Suzuki, Kimio Kano: "Crack Growth Behavior of Ferritic Steels for USC Boilers in Pressurized Superheated Steam"MATERIALS AT HIGH TEMPERATURES. 18. 119-124 (2001)
• [Publications] K.S.Raja, Y.Watanabe, T.Shoji: "Effect of Ce doping on passive film electrical resistance of 316 stainless steel exposed to oxygenated pure water at 288 degrees C and its relation to stress corrosion cracking"JOURNAL OF MATERIALS SCIENCE LETFEERS. 20. 965-968 (2001)
• [Publications] Maribel L.Saucedo-Munoz, Yutaka Watanahe, Tetsuo Shoji, Hideaki Takahashi: "Effect of Microstructure Evolution on Fracture Toughness in Isothermally Aged Austenitic Stainless Steels for Cryogenic Applications"Cryogenics. 40・11. 693-700 (2001)
• [Publications] Yutaka WATANABE, Vivekanand KAIN, Makoto KOBAYASHI: "Electrochemical Transients Observed during Slow Strain Rate Test of Alloy 600 in Borated and Lithiated High Temperature Water"Proceedings of APCFS&ATEM'01. 120-125 (2001)
• [Publications] Vivekanand Kain, Yutaka Watanabe, Makoto Kobayashi: "ELECTROCHEMICAL NOISE DURING EXPOSURE OF ALLOY 600 TO BORATED AND LITHIATED HIGH TEMPERATURE WATER"CORROSION2001. 118(CD-ROM). (2001)
• [Publications] Yutaka Watanabe, Teruo Kobayashi, Tadatumi Adschiri: "SIGNIFICANCE OF WATER DENSITY ON CORROSION BEHAVIOR OF ALLOYS IN SUPERCRITICAL WATER"CORROSION2001. 369(CD-ROM). (2001)
• [Publications] Tadafumi Adschiri, Kiwamu Sue, Kunio Arai, Yutaka Watanabe: "ESTIMATION OF METAL OXIDE SOLUBILITY AND UNDERSTANDING CORROSION IN SUPERCRITICAL WATER"CORROSION2001. 354(CD-ROM). (2001)
• [Publications] Makoto Takahashi, Catur Diantono, Masaharu Kitamura: "DEVELOPMENT OF MEMORY-BASED DECISION-SUPPORT SYSTEM FOR NUCLEAR POWER PLANT OPERATORS"Proc. of 8th IFAC/IFIP/IFORS/IEA Symposium on Analysis, Design, and Evaluation of Human-Machine Systems. 1. 591-595 (2001)
• [Publications] Makoto Takahashi, Hiroki Tani, Tadashi Miyazaki, Djoko Hari Nugroho, Masaharu Kitamura: "Support of Situation Recognition by Intention Driven Adaptive Sensing"Proc. of CSAPC'01 8th Conference on Cognitive Science Approaches to Process Control. 1. 187-193 (2001)
• [Publications] Makoto TAKAHASHI, Yosuke TSUJIMOTO, Masaharu KITAMURA: "A Database-Mining Approach to Envisioning of Material Degradation Modes in Severe Environment"Proceedings of APCFS & ATEM'01(Asian Pacific Confrrence on FRACTURE and STRENGTH'01 and International Conference on ADVANCED TECHNOLOGY in EXPERIMENTAL MECHANICS'01). 2. 1074-1079 (2001)
• [Publications] Makoto TAKAHASHI, Yousuke UCHIMATSU, Masaharu KITAMURA: "Analysis of Anomaly Event Reports tor Extraction of Knowledge on Combined Effects of Multiple Factors on Material Degradation in Nuclear Power Plants"Proceedings of APCFS & ATEM'01(Asian Pacitic Conference on FRACTURE and STRENGTH'01 and International Conference on ADVANCED TECHNOLOGY in EXPERiMENTAL MECHANICS'01). 2. 1097-1102 (2001)
• [Publications] 高橋信, 辻元洋典, 内松洋輔, 北村正晴: "破壊制御知識データベースの開発"計測自動制御学会システム制御部門学術講演会2001講演論文集. 169-174 (2001)
• [Publications] K.Yamanaka, Y.Maruyama, T.Tsuji, K.Nakamoto: "Resonance frequency and Q factor mapping by ultrasonic atomic force microscopy"Applied Physics Letters. 78. 1939-1941 (2001)
• [Publications] T.Tsuji, K.Yamanaka: "DETECTION OF THE NANO-SCALE SUBSURFACE DEFECTS BY ULTRASONIC ATOMIC FORCE MICROSCOPY"Nondestructive Characterization of Materials. X. 213-220 (2001)
• [Publications] 辻俊宏, 入浜洋, 山中一司: "超音波原子間力顕微鏡における共振周波数とQ値の迅速測定法"日本非破壊検査協会平成13年度春季大会講演概要集. 99-100 (2001)