Nature of Martensitic Phase Transition in β Phase Alloys
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概要
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Electron diffraction study on the formation of the 9R type martensite in AgCd shows that the martensitic phase transition proceeds through the successive two processes. The first process is the symmetry change due to very small lattic distortion in the β_2 phase domains, which have characteristics of the embryos of the martensites. The close packed layers are not yet formed at this stage. This process can be caused from softening of a phonon mode localized in the β_2 phase domains. The second process is the change of the distorted lattice to the 9R type martensite without any symmetry change. Based on the results, nature of the martensitic transition in the β phase alloys is considered and a general model of the transition is presented.
- 社団法人日本物理学会の論文
- 1976-04-15
著者
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Nagasawa Akira
Department Of Chemistry Faculty Of Science Saitama University
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Nagasawa Akira
Department Of Physics Nara Women's University
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