Row-matching in pyramidal Mg2Sn precipitates in Mg-Sn-Zn alloys
Row-matching in pyramidal Mg2Sn precipitates in Mg-Sn-Zn alloys
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Mg-Sn-Zn 合金中金字塔形 Mg2Sn 析出物的行匹配
DOI：
10.1007/s10853-017-0943-7
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发表时间：
2017
影响因子：
4.5
通讯作者：
Zhang Wen-Zheng
中科院分区：
文献类型：
--
作者：
Shi Zhang-Zhi;Sun Zhi-Peng;Gu Xin-Fu;Zhang Jin-Yu;Zhang Wen-Zheng
最近报道了Mg-Sn-Zn合金中Mg_2Sn析出相的两种取向关系（OR）和具有明确小面的形貌。然而，这两个OR的不合理角度被描述而没有解释。这项研究表明，一个独特的匹配行的平台上的结构存在于一个占主导地位的方面，对应于所观察到的OR。计算出的OR，与每个OR相关的三个方面的取向和在主导方面的梯田架结构都与观测结果相匹配。行匹配分析的当前方法对于理解高索引刻面接口及其相关的无理OR是有用的。
Two orientation relationships (ORs) and morphologies with well-defined facets of Mg2Sn precipitates in a Mg–Sn–Zn alloy were recently reported. However, the irrational angles of these two ORs were described without explanation. This study reveals that a unique matching-row-on-terrace structure exists in a dominant facet corresponding to either of the observed ORs. The calculated ORs, the orientations of three facets associated with each OR and the terrace-ledge structures in the dominant facets all match well with observations. The present method of row-matching analysis is useful for understanding high-index faceted interfaces and their associated irrational ORs.