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  • 《Scripta Materialia》
    年:2017   卷:130   期数:   ISSN:1359-6462   点击量:540
    Title:    Deformation-induced ω-phase transformation in a β-type titanium alloy during tensile deformation
    文章编号:    20170002
    作者:     
                
    Author(s):     Hidetoshi Fujii, Huihong Liu, Mitsuo Niinomi, Masaaki Nakai, Ken Cho
                
    关键词:    
    Keywords:    Phase transformations; Titanium alloys; Transmission electron microscopy; Tensile deformation
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    摘要:     
    Abstract:     Deformation-induced ω-phase transformation during tensile deformation was investigated in the developed spinal-support alloy, Ti-9Cr-0.2O. Both preferential single-variant ω transformation along its [0001] direction and growth and/or assembling of uniformly distributed ω particles undergo in the alloy during tensile deformation. It is confirmed that this deformation-induced ω-phase transformation can be triggered by elastic strain or stress without plastic deformation. Furthermore, a re-orientation process works for this transformation; that is, the ω1 variant may re-orientate into the ω2 variant via {001} <110> twinning-type mechanism probably related to the external loading condition and the orientations of ω and β phases.
    页码:     27-31
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    β型钛合金在拉伸变形过程中形变诱发ω相转变研究
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