Structural study of R-phase in Ti-50.23 at %Ni and Ti-47.75 at %Ni-1.50 at %Fe alloys
Structural study of R-phase in Ti-50.23 at %Ni and Ti-47.75 at %Ni-1.50 at %Fe alloys
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DOI：
10.2320/matertrans1989.38.11
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发表时间：
1997-01-01
期刊：
影响因子：
--
通讯作者：
Otsuka, K
中科院分区：
文献类型：
--
作者：
Hara, T;Ohba, T;Otsuka, K
结合电子衍射和粉末X射线衍射方法确定了R相的晶体结构。应用Rietveld方法分析粉末衍射数据。R相的结构属于空间群P3，与zeta ′（2）Au-Cd马氏体的结构相似。P（3）在1 m棒上的原子坐标偏离镜面的偏差小于zeta ′（2）Au-Cd。还观察到了会聚束电子衍射花样，并对结果进行了讨论。
The crystal structure of the R-phase was determined by combined use of the electron diffraction and the powder X-ray diffraction method. The Rietveld method was applied for the analysis of the powder diffraction data. The structure of the R-phase belongs to the space group P3 and is similar to that of zeta'(2) Au-Cd martensite. The deviations of the atomic co ordinates from the mirror plane of the P (3) over bar 1m are smaller than that of zeta'(2) Au-Cd. The convergent beam electron diffraction patterns were also observed and discussed with the results.