On faceting of {1 0 (1)over-bar 1} and {1 0 (1)over-bar 2} twin boundaries in hcp metals
On faceting of {1 0 (1)over-bar 1} and {1 0 (1)over-bar 2} twin boundaries in hcp metals
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DOI：
10.1016/j.matlet.2019.03.098
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发表时间：
2019-07-15
影响因子：
3
通讯作者：
Gornakova, Alena S.
中科院分区：
文献类型：
--
作者：
Ostapovets, Andriy;Gornakova, Alena S.
孪晶边界通常被认为是沿平面排列的直界面，对孪晶剪切具有不变性。然而，在具有hcp结构的材料中，经常观察到孪晶界从理想位置的倾斜。这种倾斜度可能是由孪晶界的面相引起的。{10 (1) / bar 0}/(0 0 0 1) facet的发展证明了{10 (1)/ bar 2}双胞胎和{10 (1)/ bar 1} {0 (1) / bar 1} {0 0 0 1) facet的发展为{10 (1)/ bar 1}双胞胎。结果表明，观察到的晶面类型可以用孪晶生长的断裂机制来解释。(C) 2019 Elsevier B.V.版权所有
Twin boundaries are traditionally considered as straight interfaces aligned with plane invariant to twinning shear. However, inclinations of twin boundaries from ideal positions are often observed in materials with hcp structure. Such inclinations can be caused by faceting of twin boundaries. Development of {1 0 (1) over bar 0}/(0 0 0 1) facets is demonstrated for {1 0 (1) over bar 2} twin and {1 0 (1) over bar 1}/(0 0 0 1) facets for {1 0 (1) over bar 1} twin. It was shown that observed types of facets can be explained in terms of disconnection mechanism of twin growth. (C) 2019 Elsevier B.V. All rights reserved.