Morphological and crystallographic features of kink bands in long -period stacking ordered Mg-Zn-Y alloy analyzed by serial sectioning SEM-EBSD observation method

被引：15

作者：

Tokuzumi, Tsubasa ^{[1
]}

Yamasaki, Shigeto ^{[2
]}

Li, Wansong ^{[2
]}

Mitsuhara, Masatoshi ^{[2
]}

Nakashima, Hideharu ^{[2
]}

机构：

[1] Kyushu Univ, Interdisciplinary Grad Sch Engn Sci, Kasuga, Fukuoka 8168580, Japan

[2] Kyushu Univ, Fac Engn Sci, Kasuga, Fukuoka 8168580, Japan

来源：

MATERIALIA | 2020年 / 12卷

基金：

日本学术振兴会;

关键词：

Magnesium alloys; Long-period stacking ordered structure; Mille-feuille structure; Kink deformation; Electron backscatter diffraction; MECHANICAL-PROPERTIES; DEFORMATION-BEHAVIOR; PLASTIC-DEFORMATION; MICROSTRUCTURE; DISLOCATIONS; STRENGTH;

D O I：

10.1016/j.mtla.2020.100716

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated the pseudo three-dimensional features of kink bands formed by the compression deformation of a directionally solidified Mg85Zn6Y9 alloy. The kink bands of interest included ridge kinks with clear surface relief and gentle kinks with almost no surface relief. Observation of surface undulation by laser microscopy and electron backscatter diffraction with serial sectioning by mechanical polishing revealed the pseudo three-dimensional morphology and crystal rotation of these kink bands. The features of the observed kink bands are explained by a pseudo three-dimensional arrangement of disclination lines.

引用

页数：6

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