Development of microstructures in rapidly-quenched Mg85Y9Zn6 alloy ribbons during heating at a constant speed examined by simultaneous small- and wide angle scattering measurements

被引：12

作者：

Okuda, Hiroshi ^{[1
]}

Tanaka, Hiroto ^{[1
]}

Shiratake, Takahiro ^{[2
]}

Yamasaki, Michiaki ^{[2
]}

Kawamura, Yoshihito ^{[2
]}

机构：

[1] Kyoto Univ, Dept Mat Sci & Engn, Sakyo Ku, Kyoto 6068501, Japan

[2] Kumamoto Univ, Magnesium Res Ctr, Kumamoto 8608555, Japan

来源：

ACTA MATERIALIA | 2016年 / 118卷

关键词：

Long-period stacking ordered structures; (LPSO); Mg-Y-Zn Small; and wide-angle X-ray scattering; (SWAXS); STACKING-ORDERED STRUCTURES; Y-ZN ALLOYS; THERMODYNAMIC STABILITY; MG; PHASE; 18R; TRANSFORMATION; NANOCLUSTERS; SYSTEM; 14H;

D O I：

10.1016/j.actamat.2016.06.028

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Developments of microstructures during heating Mg85Y9Zn6 amorphous ribbons have been examined by in-situ synchrotron radiation small-and wide-angle scattering measurements. The samples show sharp crystallization peak in a DSC measurement at 450 K for a heating rate of 10 K/min. During and just after crystallization, clustering occurred first within supersaturated hcp crystallites, with concomitant hcp grain growth. Above 550 K, the spatial arrangements of the cluster became anisotropic, eventually lead to 18R LPSO structures accompanied by introduction of stacking faults. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：95 / 99

页数：5

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