Solidification, solution treatment and age hardening of a Mg-1.6 wt.% Ca-3.2 wt.% Zn alloy

被引：158

作者：

Levi, G ^{[1
]}

Avraham, S ^{[1
]}

Zilberov, A ^{[1
]}

Bamberger, M ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Dept Mat Engn, IL-32000 Haifa, Israel

来源：

ACTA MATERIALIA | 2006年 / 54卷 / 02期

关键词：

thermodynamics; CALPHAD; precipitation; magnesium alloys; Mg-Ca-Zn alloy;

D O I：

10.1016/j.actamat.2005.09.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on thermodynamic calculations, a die-cast Mg-1.6 wt.% Ca-3.2 wt.% Zn alloy was solution treated at 465 degrees C and aged at 150, 175, 200 and 225 degrees C for 1-96 h. In addition, cast samples were exposed to 200 and 225 degrees C for tip to 32 days. The microstructures of the as-cast, solution-treated and aged alloys are in good agreement with the thermodynamic calculations. A typical age hardening and softening response was obtained during the aging treatment, as well as during the exposure to elevated temperatures. The alloy hardening correlates to the precipitation of Ca2Mg6Zn3. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：523 / 530

页数：8

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