周吉学,马百常,王金伟,刘运腾,赵东清,唐守秋,杨院生.Sn对AZ890镁合金铸态组织和力学性能的影响[J].稀有金属材料与工程,2019,48(3):765~769.[Zhou Jixue,Ma Baichang,Wang Jinwei,Liu Yunteng,Zhao Dongqing,Tang Shouqiu,Yang Yuansheng.Effects of Sn on the Microstructure and Mechanical properties of as-cast AZ80 alloys[J].Rare Metal Materials and Engineering,2019,48(3):765~769.]
Sn对AZ890镁合金铸态组织和力学性能的影响
投稿时间:2017-09-20  修订日期:2017-12-14
中文关键词:  AZ80,组织  力学性能  组织细化
基金项目:国家重点研发计划(2017YFB0103904);山东自然科学基金(ZR2017PEE007)
中文摘要:
      通过OM、XRD、SEM和力学性能测试等手段研究了Sn元素对AZ80镁合金铸态组织和力学性能的影响。AZ80-xSn(x=1,3,5wt.%)铸态显微组织呈现出典型的等轴树枝晶形貌,主要有α-Mg,离异共晶Mg17Al12,层片状Mg17Al12,离异共晶Mg2Sn相组成。添加Sn元素可以有效的抑制层片状Mg17Al12相的析出,当Sn添加量为5wt%时,层片状Mg17Al12基本消失。Sn元素添加量少于3wt.%时,具有很好晶粒细化效果。而且,Sn元素具有明显的强化效果,当Sn添加3wt.%时,具有较好的综合力学性能。
Effects of Sn on the Microstructure and Mechanical properties of as-cast AZ80 alloys
英文关键词:AZ80  Microstructure  Microstructure refinement  Mechanical property
英文摘要:
      The effects of Sn addition on the microstructure and tensile properties of as-cast AZ80 alloy were investigated by the means of OM, XRD, SEM and tensile property test. The microstructure of as-cast AZ80-xSn (x=1, 3, 5, wt.% ) alloys appears typical equiaxed dendrites morphology, which consists of a-Mg primary, divorced eutectic (Mg+Mg17Al12), laminar Mg17Al12, divorced eutectic Mg2Sn. The addition of Sn elecment effectively suppressed the laminar Mg17Al12 phase precipitating duringSsolidification. When the Sn content was 5 wt.%, the laminar Mg17Al12 phase nearly disappeared. The grain size reduced when the Sn content less than 3 wt.%. Moreover, The alloy was strengthened significantly by Sn content and the AZ80-3Sn alloy had the superior mechanical property.
作者单位E-mail
周吉学 山东省科学院新材料研究所 mabch@sdas.org 
马百常 山东省科学院新材料研究所 Zhoujx@sdas.org 
王金伟 山东省科学院新材料研究所 Wangjw@sdas.org 
刘运腾 山东省科学院新材料研究所 liu_yunteng@126.com 
赵东清 山东省科学院新材料研究所 zhaodq@sdas.org 
唐守秋 山东省科学院新材料研究所 tangshq@sdas.org 
杨院生 中国科学院金属所 ysyang@imr.ac.cn 
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