1999 Fiscal Year Annual Research Report

セラミックスにおける相変態および人工界面の結晶学的研究

Research Project

Project/Area Number	09650763
Research Institution	Ehime University
Principal Investigator	仲井清眞愛媛大学, 工学部, 助教授 (60038114)
Co-Investigator(Kenkyū-buntansha)	小林千悟愛媛大学, 工学部, 助手 (10304651) 大森靖也愛媛大学, 工学部, 教授 (10233280)
Keywords	相分離機構 / 機械的性質 / 微細組織形成予測 / 結晶学的解析 / 異相界面構造 / 粒界析出機構 / 金属間化合物 / 炭化物
Research Abstract	セラミックスならびに金属間化合物は、高温強度に優れている反面、脆いという欠点がある。そこで、微細組織形成予測に基づき材料組成制御を行うと同時に詳細な微細組織に関する結晶学的研究等を遂行し、機械的性質を初め各種物性に及ぼす微細組織の影響等を精力的に検討した。典型的な例として、メカニカルアロイング法により作製したMo-(HfC or TiC)複合材料中の炭化物等の粒界析出反応の解明、酸素ドープしたシリコン基板中の酸化物析出が及ぼす不純物挙動への効果および材料純化機構の解明、Ti-Al合金における相分離機構の解明ならびにこの結果を活用したTi-Al-X(X=Cr,Zr,Mo等)三元系合金のβ相安定化への第三元素添加の効果とその高温領域での相分離が及ぼす機械的性質への影響の検討、低炭素低合金鋼の耐溶接性改良のための粒内フェライト形成に及ぼす介在析出物形成機構の解明、高合金鋼中の相分離機構に及ぼす合金元素の効果の解明、Ti基抗菌・生体材料の相分離機構の解明、ならびにAl基合金中の相分離過程および各種化合物の形成機構に関する検討など、広範囲にわたって研究を進め、相分離機構等の検討を通じて、各種化合物等の挙動に関する基礎的知見を得た。以上の成果より、セラミックスを初めとする各種材料における相平衡および相変態に関する結晶学的研究を通じて、特に、異相界面(人工制御界面)構造が微細組織の分布、サイズおよび析出異方性に多大なる影響を及ぼすことが明確となり、各種物性制御に大いに貢献することが判明した。

Research Products

(24 results)

All Other

All Publications (24 results)

[Publications] 大森靖也: "Effects of co phase formation on the decomposition of α"/β duplex phase structure in a metastable β Ti alloy"Mater.Trans.,JIM. 39. 40-48 (1998)
[Publications] 大森靖也: "Crystallographic analysis of α phase formation in a metastable β Ti alloy"Mater.Trans.,JIM. 39. 49-56 (1998)
[Publications] 仲井清眞: "Fe-Cr-C 合金パーライトの局所オーステナイト化"日本金属学会会報. 37. 381 (1998)
[Publications] 大森靖也: "Ordering processes in an Al-Li-Cu-Mg-Zr alloy"Advanced Materials and Processing,Eds.M.A.Jmam,R.DeNale,S.Hanada,Z.Zhong and D.N.Lee,Pub.of TMS. 1. 1293-1298 (1998)
[Publications] 仲井清眞: "Austenite formation and alloy carbide dissolution in Fe-Cr-C steels during heating"Advanced Materials and Processing,Eds.M.A.Jmam,R.DeNale,S.Hanada,Z.Zhong and D.N.Lee,Pub.of TMS. 1. 1443-1448 (1998)
[Publications] 仲井清眞: "Effects of Zr-addition on phase stability and phase transformations in a Ti-50at.%Al alloy"Advanced Materials and Processing,Eds.M.A.Jmam,R.DeNale,S.Hanada,Z.Zhong and D.N.Lee,Pub.of TMS. 1. 1533-1538 (1998)
[Publications] 仲井清眞: "Formation of austenite and dissolution of alloy carbides in Fe-8.2Cr-C alloys"Zeitschrift fur Metallkunde. 90. 25-37 (1999)
[Publications] 仲井清眞: "Crystallography and interface boundary structure of pearlite with M_7C_3 carbide lamellae"Acta Materialia. 47. 1105-1115 (1999)
[Publications] 大森靖也: "Aging behavior of an Al-Li-Cu-Mg-Zr alloy"Metall.and Mater.Trans.A. 30A. 741-749 (1999)
[Publications] 仲井清眞: "Mechanism and crystallography of ferrite precipitation from cementite in an Fe-Cr-C alloy during austenitisation"Phil.Mag.A. 79. 1655-1669 (1999)
[Publications] 仲井清眞: "Pearlite to austenite transformation in an Fe-2.6Cr-1C alloy"Acta Materialia. 47. 2619-2632 (1999)
[Publications] 仲井清眞: "Ti-48at.%Al合金中の微細組織形成過程"社団法人日本鉄鋼協会材料の組織と特性部会相分解による組織形成過程研究会. 35-40 (1999)
[Publications] 小林千悟: "δ/γ2相ステンレス鋼におけるδ相の相分解挙動"社団法人日本鉄鋼協会材料の組織と特性部会相分解による組織形成過程研究会. 49-54 (1999)
[Publications] 仲井清眞: "Decomposition of α-phase into massive and Widmanstattenstructures in a Ti-48at.%Al alloy"Solid-Solid Phase Transformations I,Edited by M.Koiwa,K.Otsuka and T.Miyazaki,The Japan Institute of Metals. 1. 153-156 (1999)
[Publications] 大森靖也: "Crystallization processes of Nd-Fe-Cr-B amorphous ribbons"Solid-Solid Phase Transformations I,Edited by M.Koiwa,K.Otsuka and T.Miyazaki,The Japan Institute of Metals. 2. 1251-1254 (1999)
[Publications] 小林千悟: "Microstructure formation in δ/γ duplex phase stainless steel during isothermal ageing and continuous heating"Solid-Solid Phase Transformations I,Edited by M.Koiwa,K.Otsuka and T.Miyazaki,The Japan Institute of Metals. 2. 1625-1628 (1999)
[Publications] 仲井清眞: "計算状態図による合金鋼中の逆変態に伴う組織変化の解析"日本金属学会会報「まてりあ」. 38. 975-981 (1999)
[Publications] 仲井清眞: "Decomposition of martensite by discontinuous-like precipitation reaction in an Fe-17Cr-0.5C alloy"Acta Materialia. (印刷中).
[Publications] 仲井清眞: "Crystallography and structural evolution during reverse transformation in an Fe-17Cr-0.5C tempered martensite"Acta Materialia. (印刷中).
[Publications] 仲井清眞: "Phase-equilibria and -decomposition in a Ti-Al-Zr alloy"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).
[Publications] 仲井清眞: "Decomposition of β phase in a Ti-Al-Cr alloy"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).
[Publications] 小林千悟: "Microstructure evolutions in a 25Cr-7Ni based stainles steel isothermally aged at 550℃"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).
[Publications] 小林千悟: "Phase transformations in Al-3.3mass&Li alloy"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).
[Publications] 仲井清眞: "Decomposition processes of α phase in a Ti-48at%Al alloy"Mater.Trans.JIM. (印刷中).

1999 Fiscal Year Annual Research Report

セラミックスにおける相変態および人工界面の結晶学的研究

Principal Investigator

仲井 清眞 愛媛大学, 工学部, 助教授 (60038114)

Research Products

[Publications] 大森靖也: "Effects of co phase formation on the decomposition of α"/β duplex phase structure in a metastable β Ti alloy"Mater.Trans.,JIM. 39. 40-48 (1998)

[Publications] 大森靖也: "Crystallographic analysis of α phase formation in a metastable β Ti alloy"Mater.Trans.,JIM. 39. 49-56 (1998)

[Publications] 仲井清眞: "Fe-Cr-C 合金パーライトの局所オーステナイト化"日本金属学会会報. 37. 381 (1998)

[Publications] 大森靖也: "Ordering processes in an Al-Li-Cu-Mg-Zr alloy"Advanced Materials and Processing,Eds.M.A.Jmam,R.DeNale,S.Hanada,Z.Zhong and D.N.Lee,Pub.of TMS. 1. 1293-1298 (1998)

[Publications] 仲井清眞: "Austenite formation and alloy carbide dissolution in Fe-Cr-C steels during heating"Advanced Materials and Processing,Eds.M.A.Jmam,R.DeNale,S.Hanada,Z.Zhong and D.N.Lee,Pub.of TMS. 1. 1443-1448 (1998)

[Publications] 仲井清眞: "Effects of Zr-addition on phase stability and phase transformations in a Ti-50at.%Al alloy"Advanced Materials and Processing,Eds.M.A.Jmam,R.DeNale,S.Hanada,Z.Zhong and D.N.Lee,Pub.of TMS. 1. 1533-1538 (1998)

[Publications] 仲井清眞: "Formation of austenite and dissolution of alloy carbides in Fe-8.2Cr-C alloys"Zeitschrift fur Metallkunde. 90. 25-37 (1999)

[Publications] 仲井清眞: "Crystallography and interface boundary structure of pearlite with M_7C_3 carbide lamellae"Acta Materialia. 47. 1105-1115 (1999)

[Publications] 大森靖也: "Aging behavior of an Al-Li-Cu-Mg-Zr alloy"Metall.and Mater.Trans.A. 30A. 741-749 (1999)

[Publications] 仲井清眞: "Mechanism and crystallography of ferrite precipitation from cementite in an Fe-Cr-C alloy during austenitisation"Phil.Mag.A. 79. 1655-1669 (1999)

[Publications] 仲井清眞: "Pearlite to austenite transformation in an Fe-2.6Cr-1C alloy"Acta Materialia. 47. 2619-2632 (1999)

[Publications] 仲井清眞: "Ti-48at.%Al合金中の微細組織形成過程"社団法人日本鉄鋼協会 材料の組織と特性部会相分解による組織形成過程研究会. 35-40 (1999)

[Publications] 小林千悟: "δ/γ2相ステンレス鋼におけるδ相の相分解挙動"社団法人日本鉄鋼協会 材料の組織と特性部会相分解による組織形成過程研究会. 49-54 (1999)

[Publications] 仲井清眞: "Decomposition of α-phase into massive and Widmanstattenstructures in a Ti-48at.%Al alloy"Solid-Solid Phase Transformations I,Edited by M.Koiwa,K.Otsuka and T.Miyazaki,The Japan Institute of Metals. 1. 153-156 (1999)

[Publications] 大森靖也: "Crystallization processes of Nd-Fe-Cr-B amorphous ribbons"Solid-Solid Phase Transformations I,Edited by M.Koiwa,K.Otsuka and T.Miyazaki,The Japan Institute of Metals. 2. 1251-1254 (1999)

[Publications] 小林千悟: "Microstructure formation in δ/γ duplex phase stainless steel during isothermal ageing and continuous heating"Solid-Solid Phase Transformations I,Edited by M.Koiwa,K.Otsuka and T.Miyazaki,The Japan Institute of Metals. 2. 1625-1628 (1999)

[Publications] 仲井清眞: "計算状態図による合金鋼中の逆変態に伴う組織変化の解析"日本金属学会会報「まてりあ」. 38. 975-981 (1999)

[Publications] 仲井清眞: "Decomposition of martensite by discontinuous-like precipitation reaction in an Fe-17Cr-0.5C alloy"Acta Materialia. (印刷中).

[Publications] 仲井清眞: "Crystallography and structural evolution during reverse transformation in an Fe-17Cr-0.5C tempered martensite"Acta Materialia. (印刷中).

[Publications] 仲井清眞: "Phase-equilibria and -decomposition in a Ti-Al-Zr alloy"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).

[Publications] 仲井清眞: "Decomposition of β phase in a Ti-Al-Cr alloy"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).

[Publications] 小林千悟: "Microstructure evolutions in a 25Cr-7Ni based stainles steel isothermally aged at 550℃"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).

[Publications] 小林千悟: "Phase transformations in Al-3.3mass&Li alloy"7th Asia-Pacific Electron Microscopy Conference "Perspective Imaging". (印刷中).

[Publications] 仲井清眞: "Decomposition processes of α phase in a Ti-48at%Al alloy"Mater.Trans.JIM. (印刷中).

仲井清眞愛媛大学, 工学部, 助教授 (60038114)

[Publications] 仲井清眞: "Ti-48at.%Al合金中の微細組織形成過程"社団法人日本鉄鋼協会材料の組織と特性部会相分解による組織形成過程研究会. 35-40 (1999)

[Publications] 小林千悟: "δ/γ2相ステンレス鋼におけるδ相の相分解挙動"社団法人日本鉄鋼協会材料の組織と特性部会相分解による組織形成過程研究会. 49-54 (1999)