Laser-induced microstructural development and phase evolution in magnesium alloy

被引：9

作者：

Guan, Y. C. ^{[1
,2
]}

Zhou, W. ^{[1
,2
]}

Li, Z. L. ^{[2
]}

Zheng, H. Y. ^{[2
]}

机构：

[1] Nanyang Technol Univ, Singapore 639798, Singapore

[2] Singapore Inst Mfg Technol, Singapore 638075, Singapore

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2014年 / 582卷

关键词：

Laser processing; Secondary phase; Rapid solidification; Magnesium alloy; Precipitation; AZ91D MG ALLOY; SOLIDIFICATION MICROSTRUCTURE; CORROSION BEHAVIOR; GROWTH;

D O I：

10.1016/j.jallcom.2013.08.030

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Secondary phase plays an important role in determining microstructures and properties of magnesium alloys. This paper focuses on laser-induced microstructure development and secondary phase evolution in AZ91D Mg alloy studied by SEM, TEM and EDS analyses. Compared to bulk shape and lamellar structure of the secondary phase in as-received cast material, rapid-solidified microstructures with various morphologies including nano-precipitates were observed in laser melt zone. Formation mechanisms of microstructural evolution and effect of phase development on surface properties were further discussed. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：491 / 495

页数：5

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