Effect of element Gd on phase constituent and mechanical property of Mg-5Sn-1Ca alloy

Effect of element Gd on phase constituent and mechanical property of Mg-5Sn-1Ca alloy

The Mg-5Sn-1Ca-xGd （x=0, 1） alloys were chosen to investigate the change in solidification paths, phase formation and mechanical properties. The microstructure of as-cast Mg-5Sn-1Ca alloy is composed of α-Mg, Mg2Sn and CaMgSn phases. With the addition of Gd, the formation of the Mg2Sn phase is imped...

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Veröffentlicht in:Transactions of Nonferrous Metals Society of China 2010-07, Vol.20 (B07), p.341-345
1. Verfasser: 施斌卿 陈荣石 柯伟
Format: Artikel
Sprache:eng
Schlagworte:
Alloying elements
China
Elongation
magnesium alloy
Magnesium base alloys
Mechanical properties
mechanical property
Mg-Sn-Ca alloy
Microstructure
Nonferrous metals
Solidification
thermal analysis
凝固路径
力学性能变化
微观结构
相组成
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Zusammenfassung:The Mg-5Sn-1Ca-xGd （x=0, 1） alloys were chosen to investigate the change in solidification paths, phase formation and mechanical properties. The microstructure of as-cast Mg-5Sn-1Ca alloy is composed of α-Mg, Mg2Sn and CaMgSn phases. With the addition of Gd, the formation of the Mg2Sn phase is impeded and the CaMgSn phase is refined, whereas the ultimate tensile strength and elongation decrease. The possible reasons for the variation in microstructure and mechanical properties were discussed.
ISSN:1003-6326
DOI:10.1016/S1003-6326(10)60494-3