- 著者
-
池田 陽一
梅本 好日古
藤田 全基
- 出版者
- 日本結晶学会
- 雑誌
- 日本結晶学会誌 (ISSN:03694585)
- 巻号頁・発行日
- vol.65, no.3, pp.192-197, 2023-08-31 (Released:2023-09-06)
- 参考文献数
- 29
- 被引用文献数
-
1
This report introduced the results of recent neutron scattering and X-ray absorption fine structure(EXAFS)experiments on a family of medium-entropy alloys(TrCoNi, Tr=Cr, Mn, and Fe). Neutron experiments revealed that the time-temperature-dependent short- and long-range structural transformation occurs in a medium-entropy alloy MnCoNi. Although a sign of short-range ordering was not clear in the EXAFS results, the mean-square relative displacement(MSRD)may catch the difference in local structures between medium-entropy alloys. The relatively large static MSRD of the MnCoNi sample can be interpreted as a sign of short-range tetragonal structural transformation, whereas the small value of the CrCoNi sample cannot be interpreted straightforwardly. A possible interpretation of the difference in MSRD was provided.