検索対象:     
報告書番号:
※ 半角英数字
 年 ~ 
 年

Precursor phenomena of martensitic transformation in Fe-doped Ti-Ni alloys studied by X-ray fluorescence holography

蛍光X線ホログラフィによるFeドープTi-Ni合金のマルテンサイト変態の前駆現象

Hu, W.; 林 好一*; 八方 直久*; 寺井 智之*; 福田 隆*; 掛下 知行*; 高橋 正光

Hu, W.; Hayashi, Koichi*; Happo, Naohisa*; Terai, Tomoyuki*; Fukuda, Takashi*; Kakeshita, Tomoyuki*; Takahashi, Masamitsu

The gradual changes in the lattice modulation, phonon dispersion and elastic modulus, which are attracting much interest as precursors of the martensitic transition, have been experimentally reported for many materials. However, studying the precursors is difficult because they are immediately followed by the main martensitic transition. Ti$$_{50}$$Ni$$_{44}$$Fe$$_{6}$$, which shows only parent - incommensurate - commensurate phase transition, is a suitable sample for investigating the lattice modulation accompanied by the appearance of the superlattice structure. In the present work, X-ray fluorescence holography technique have been applied for investigating the 3D local structure around Fe and Ni at both the parent and commensurate phases. We will discuss the dynamical structural changes at both phases, and the results will provide hints to the lattice modulation related to precursors of the martensitic transformation.

Access

:

- Accesses

InCites™

:

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.