In-situ TEM Observation of γ→ε Martensitic Transformation during Tensile Straining in an Fe-Mn-Si Shape Memory Alloy
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- Jiang Bohong
- Department of Materials Science, Shanghai Jiao Tong University
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- Tadaki Tsugio
- Department of Structural Characterization and Design Division of Advanced Materials Science and Technology, ISIR, Osaka University
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- Mori Hirotaro
- Research Center for Ultra-High Voltage Electron Microscopy, Osaka University
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- Hsu (Xu Zuyao) T. Y.
- Department of Materials Science, Shanghai Jiao Tong University
書誌事項
- タイトル別名
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- <I>In-situ</I> TEM Observation of γ→ε Martensitic Transformation during Tensile Straining in an Fe–Mn–Si Shape Memory Alloy
- In-situ TEM Observation of ガンマ イプシロン Ma
- <I>In-situ</I> TEM Observation of γ→ε Martensitic Transformation during Tensile Straining in an Fe–Mn–Si Shape Memory Alloy
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Through in-situ TEM observation on an Fe-30.3 mass%Mn-6.1 mass%Si shape memory alloy under extending at room temperature, it is found that on a lower applied stress level, the ε-martensite plates are preferentially formed at interfaces of pre-existing overlapped stacking faults or ε-martensites with γ-phase especially at those near by the stress-concentrated locations e.g. inclusions. It is also observed that the ε-martensite is growing by the motion of partial dislocations resulting in the widening and thickening of stacking faults until it is stopped by another martensite plate or grain boundary. On higher stress level, groups of highly oriented ε-martensite plates are formed by an autocatalytic activating mechanism suggested by the present authors.
収録刊行物
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- Materials Transactions, JIM
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Materials Transactions, JIM 38 (12), 1072-1077, 1997
社団法人 日本金属学会
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詳細情報 詳細情報について
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- CRID
- 1390001204247327360
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- NII論文ID
- 130003556877
- 10002454480
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- NII書誌ID
- AA10699969
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- COI
- 1:CAS:528:DyaK1cXht1ymt7Y%3D
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- ISSN
- 2432471X
- 09161821
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- NDL書誌ID
- 4384536
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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