Sn对AZ61镁合金微观组织与力学性能的影响

高鹏; 吴玉锋; 李建辉; 杜文博

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Sn对AZ61镁合金微观组织与力学性能的影响
Effects of Sn on Microstructure and Mechanical Properties of AZ61 Magnesium Alloy
2006年第12期页码：797-799
纸质出版日期： 2006 ，
DOI：

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[1]高鹏,吴玉锋,李建辉,杜文博.Sn对AZ61镁合金微观组织与力学性能的影响[J].特种铸造及有色合金,2006(12):797-799+750.

Gao Peng, Wu Yufeng, Li Jianhui, et al. Effects of Sn on Microstructure and Mechanical Properties of AZ61 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2006,(12):797-799.
[1]高鹏,吴玉锋,李建辉,杜文博.Sn对AZ61镁合金微观组织与力学性能的影响[J].特种铸造及有色合金,2006(12):797-799+750. DOI：

Gao Peng, Wu Yufeng, Li Jianhui, et al. Effects of Sn on Microstructure and Mechanical Properties of AZ61 Magnesium Alloy[J]. Special Casting & Nonferrous Alloys, 2006,(12):797-799. DOI：

摘要

研究了Sn对AZ61镁合金显微组织和力学性能的影响。对显微组织的观察表明

当加入Sn之后

在铸态和热处理态合金中均发现了球形颗粒状的Mg2Sn。对合金力学性能的试验表明

少量的Sn可提高合金的抗拉强度和屈服强度。热处理态下

当Sn含量达到3%时合金的抗拉强度和屈服强度分别达到了274MPa和172MPa

但是伸长率下降到9%。拉伸断口的SEM形貌分析表明

加入Sn以后

合金断裂方式由解理断裂向准解理断裂转变。

Abstract

Effects of Sn on microstructure and mechanical properties of AZ61 magnesium alloy have been in-vestigated. Microstructural observation indicates that the spheroidal Mg2Sn particle is created in both as-cast and heat treated AZ61 alloy with Sn addition. A few Sn addition can increase the tensile strength and yield strength of the alloy. With 3% Sn addition

the tensile strength and yield strength of heat-treated AZ61 alloy can reach 274 MPa and 172 MPa

respectively

while elongation is decreased to 9%. With Sn addition

fracture morphology is transformed from cleavage rupture into quasi-cleavage rupture from SEM observation.