Martensitic stabilization and defects induced by deformation in TiNi shape memory alloys
查看参考文献23篇
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文摘
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Martensitic stabilization caused by deformation in a TiNi shape memory alloy was studied. Special attention was paid to the deformed microstructures to identify the cause of martensitic stabilization. Martensitic stabilization was demonstrated by differential scanning calorimetry for the tensioned TiNi shape memory alloy. Transmission electron microscopy revealed that antiphase boundaries were formed because of the fourfold dissociation of [110]B19'super lattice dislocations and were preserved after reverse transformation due to the lattice correspondence. Martensitic stabilization was attributed to dislocations induced by deformation, which reduced the ordering degree of the microstructure, spoiled the reverse path from martensite to parent phase compared with thermoelastic transformation, and imposed resistance on phase transformation through the stress field |
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来源
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International Journal of Minerals
, Metallurgy and Materials,2011,18(1):66-69 【核心库】
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DOI
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10.1007/s12613-011-0401-5
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关键词
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shape memory alloys
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transmission electron microscopy
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martensitic transformations
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stabilization
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defects
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地址
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1.
Northeastern University, Key Laboratory for Anisotropy and Texture of Materials (MOE), Shenyang, 110819
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Structural Functions Research Group, Innovative Materials Engineering Laboratory, National Institute for Materials Science, Japan, Japan, Tsukuba, 305-0047
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Department of Production Systems Engineering, Toyohashi University of Technology, Japan, Toyohashi, 441-8580
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语种
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英文 |
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文献类型
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研究性论文 |
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ISSN
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1674-4799 |
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学科
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轻工业、手工业、生活服务业 |
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文献收藏号
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CSCD:4381639
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