1992 Fiscal Year Annual Research Report

核融合次期装置における材料システム的課題

Research Project

Project/Area Number	03302061
Research Institution	Tohoku University
Principal Investigator	松井秀樹東北大学, 金属材料研究所, 教授 (50005980)
Co-Investigator(Kenkyū-buntansha)	実川資朗原研照射解折研究室, 研究員関村直人東大, 工, 助教授 (10183055) 香山晃東大, 工, 助教授 (80092203) 阿部勝憲東北大, 工, 教授 (70005940) 高橋平七郎北大, 工, 教授 (80001337)
Keywords	核融合炉材料 / 316ステンレス鋼 / ヘリウム効果 / ヘリウム脆性 / 照射効果 / 応力腐食割れ / 核融合実験装置 / 材料システム
Research Abstract	本年度は平成3年度に引き続き、主としてITERに関連した材料課題の内、以下の外題について重点的に検討を行った。(a)低温での高エネルギー中性子照射による伸びの低下、(b)低温クリープの照射による促進、(c)水環境下での照射誘起SCC、(d)低放射化材料の必要性と基準、(e)被照射材料の溶接に伴う問題、(f)中性子照射された材料の核融合燃料挙動、(g)以上の検討結果の構造設計指針への影響、である。更に次期装置を中性子照射装置として利用する場合の要求仕様を具体化し、装置設計への指針をまとめる作業を行った。これに関しては、本研究分担者を中心にアンケート調査を実施し、それぞれの材料毎にDEMO炉用材料としての特性を評価するための必要最小限の照射量を検討した。内容の詳細については中間報告書に掲載する予定であるが、実炉環境中における材料の複合的な対照射応答に関する情報を得る上で極めて重要な役割があるとともに、大容積の核融合中性子照射装置として特に照射相関を確立する上で重要であることが指摘された。一方、累積照射量の年次計画からみると、DEMO炉の工学データはもとより材料開発にとっても遅すぎることは明かで、核融合条件の標準照射場として、核分裂炉やDLi型強力中性子源における照射効果の較正に活用するのが妥当と考えられる。一方、ITERにおいてもEDA開始により構成材料の再検討が行われ、従来構造材料と考えられてきた316ステンレス鋼のみならず、フェライト鋼等の材料が検討されるに到っている。これに関しては本研究においても最重要な課題と受けとめ、ITERにおいてフェライト鋼等を使用するにあたっての問題点や、更にフェライト鋼やバナジウム合金等をテストブランケットモジュール用の材料として採用する場合の問題等の検討を行った。この結果を集約して分担者の香山が平成5年3月下旬から開催されるITER技術諮問委員会(Technical Advisory Committee)で報告する予定になっている。また、この検討結果の詳細は中間報告書に掲載する予定である。

Research Products

(22 results)

All Other

All Publications (22 results)

[Publications] H.Matsui: "Mechanical Properties of Vanadium Alloys Doped with Helium Using Various Techniques" 16thInternational Symposium on the Effects of Radiaition on Materials,ASTM STP 1993.
[Publications] H.Matsui: "Effects of Solute Atomic Size Factor on the Swelling of Vanadium Alloys" 16th Intrnational Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] T.Tanade: "Irradiation Behavior of Carbon-Boron-Titanium Materials" 16th Internaieonal Symposiu on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] S.Ohnuki: "Void Formation and Induced Segregation During Electron Irradiation in Ti and Nb Modified Austinitic Alloys" ulth Internaieonal Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] H.Watanabe: "The Effect of P on Microstructure of an Fe-16Cr-17Ni Austenitic Ternary Induced by Fast Neutron Irradiation" 16th International Symposium on the Effects lf Radiation on Materials,ASTM STP 1993,in press.
[Publications] F.A.Garner: "Response of Pure Nickel and Nickel Binary Alloys to Neutron Irradiation" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] Yutako Kohno: "Microstructural Examination of Fe-Cr-Mn Alloys after Charged Particle Irradiation" ASTM STP. 1125. 958-968 (1992)
[Publications] Akira Kohyama: "Simulation Study of Low-Temperature Irradiation and a LOCA and Resulting Microstructural Changes in 316 Stainless Steel" ASTM STP. 1125. 1051-1060 (1992)
[Publications] Akira Kohyama: "Effects of Neutron Irrasiation on Ceramic Fiber-Reinforced Composites" ASTM STP. 1125. 785-796 (1992)
[Publications] Yutai Katoh: "Effects of Damage Rate and/or He/dpa Ratio on Microstructural Evolution in Ion Irradeated Austenitic Steel" Matirials Science Forum. 97-99. 359-366 (1992)
[Publications] Yutai Katoh: "Effects of Applied Stress on Microstructural Evolution in 316SS under Ion Irradiation" 16th ASTM Symposium,Denver,1992,in ASTM STP. 1175. (1992)
[Publications] T.Iwai: "Microstructural Evolution and Hardening of Iron Based Model Alloys Caused ASTM STP 1993"
[Publications] T.Shikama: "Measurement of Electrical Conductivity of Ceramic Insulators in a Fission Reactor" 16th Intermational Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] N.Sekimura: "Modeling of Microstructural Evolution and Swelling in Austenitic Steels under Irradiation" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] Y.Katoh: "Effect of Applied Stress on Microstructural Evolution in 316ss Under Ion Irradiation" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] A.Kohyama: "Irradiation Creep Behavior of Low Activation Steels in FFTF/MOTA" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] T.Muroga: "The Role of Ni and Zn in Mecrostructural Evolution of Cu under Irradiation,Fundamental Study of Solid Transmutation Effects" 16th Intemational Symposium on the Effects of Radiation on Materials.ASTM STP 1993.
[Publications] H.Takahashi: "The Effects of Compositions on Mechamical Prooerties Mecrostructures of hte Neutron Irradiated Fe-Cr-Mn-Al Alloys" 16th Intemational Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] T.Muroga: "Microstructural ans Microchemical Evolution During Fast Neutron Irradiation in Ni and Ni-Si Alloys Doped with isotopically Controlled Boron" 16th Inrernational Symposium on the Effects Radidation on Materials,ASTM STP 1993.
[Publications] K.Abe: "Neutron Irradiation Damage of Molybdenum at High Temperatures" 16th International Symposium on the Effects Radiation on Materials,ASTM STP 1993.
[Publications] Y.Kohno: "Mecrostructural Evolution in Tungsten Stabilized Martensitic Steels After Neutron Irradiation in FFTF/MOTA" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.
[Publications] T.Shikama: "High Temperature Irradiation of Alumina Based Ceramic Materials in a Water-Cooled Fission Reactor" 16th International Symoosium on the Effects of Radiation on Materials,ASTM STP 1993.

1992 Fiscal Year Annual Research Report

核融合次期装置における材料システム的課題

Principal Investigator

松井 秀樹 東北大学, 金属材料研究所, 教授 (50005980)

Research Products

[Publications] H.Matsui: "Mechanical Properties of Vanadium Alloys Doped with Helium Using Various Techniques" 16thInternational Symposium on the Effects of Radiaition on Materials,ASTM STP 1993.

[Publications] H.Matsui: "Effects of Solute Atomic Size Factor on the Swelling of Vanadium Alloys" 16th Intrnational Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] T.Tanade: "Irradiation Behavior of Carbon-Boron-Titanium Materials" 16th Internaieonal Symposiu on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] S.Ohnuki: "Void Formation and Induced Segregation During Electron Irradiation in Ti and Nb Modified Austinitic Alloys" ulth Internaieonal Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] H.Watanabe: "The Effect of P on Microstructure of an Fe-16Cr-17Ni Austenitic Ternary Induced by Fast Neutron Irradiation" 16th International Symposium on the Effects lf Radiation on Materials,ASTM STP 1993,in press.

[Publications] F.A.Garner: "Response of Pure Nickel and Nickel Binary Alloys to Neutron Irradiation" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] Yutako Kohno: "Microstructural Examination of Fe-Cr-Mn Alloys after Charged Particle Irradiation" ASTM STP. 1125. 958-968 (1992)

[Publications] Akira Kohyama: "Simulation Study of Low-Temperature Irradiation and a LOCA and Resulting Microstructural Changes in 316 Stainless Steel" ASTM STP. 1125. 1051-1060 (1992)

[Publications] Akira Kohyama: "Effects of Neutron Irrasiation on Ceramic Fiber-Reinforced Composites" ASTM STP. 1125. 785-796 (1992)

[Publications] Yutai Katoh: "Effects of Damage Rate and/or He/dpa Ratio on Microstructural Evolution in Ion Irradeated Austenitic Steel" Matirials Science Forum. 97-99. 359-366 (1992)

[Publications] Yutai Katoh: "Effects of Applied Stress on Microstructural Evolution in 316SS under Ion Irradiation" 16th ASTM Symposium,Denver,1992,in ASTM STP. 1175. (1992)

[Publications] T.Iwai: "Microstructural Evolution and Hardening of Iron Based Model Alloys Caused ASTM STP 1993"

[Publications] T.Shikama: "Measurement of Electrical Conductivity of Ceramic Insulators in a Fission Reactor" 16th Intermational Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] N.Sekimura: "Modeling of Microstructural Evolution and Swelling in Austenitic Steels under Irradiation" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] Y.Katoh: "Effect of Applied Stress on Microstructural Evolution in 316ss Under Ion Irradiation" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] A.Kohyama: "Irradiation Creep Behavior of Low Activation Steels in FFTF/MOTA" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] T.Muroga: "The Role of Ni and Zn in Mecrostructural Evolution of Cu under Irradiation,Fundamental Study of Solid Transmutation Effects" 16th Intemational Symposium on the Effects of Radiation on Materials.ASTM STP 1993.

[Publications] H.Takahashi: "The Effects of Compositions on Mechamical Prooerties Mecrostructures of hte Neutron Irradiated Fe-Cr-Mn-Al Alloys" 16th Intemational Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] T.Muroga: "Microstructural ans Microchemical Evolution During Fast Neutron Irradiation in Ni and Ni-Si Alloys Doped with isotopically Controlled Boron" 16th Inrernational Symposium on the Effects Radidation on Materials,ASTM STP 1993.

[Publications] K.Abe: "Neutron Irradiation Damage of Molybdenum at High Temperatures" 16th International Symposium on the Effects Radiation on Materials,ASTM STP 1993.

[Publications] Y.Kohno: "Mecrostructural Evolution in Tungsten Stabilized Martensitic Steels After Neutron Irradiation in FFTF/MOTA" 16th International Symposium on the Effects of Radiation on Materials,ASTM STP 1993.

[Publications] T.Shikama: "High Temperature Irradiation of Alumina Based Ceramic Materials in a Water-Cooled Fission Reactor" 16th International Symoosium on the Effects of Radiation on Materials,ASTM STP 1993.

松井秀樹東北大学, 金属材料研究所, 教授 (50005980)