| Sn对AZ890镁合金铸态组织和力学性能的影响 |
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| 引用本文： | 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 |
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| 作者姓名： | 周吉学 马百常 王金伟 刘运腾 赵东清 唐守秋 杨院生 |
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| 作者单位： | 山东省科学院新材料研究所,山东省科学院新材料研究所,山东省科学院新材料研究所,山东省科学院新材料研究所,山东省科学院新材料研究所,山东省科学院新材料研究所,中国科学院金属所 |
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| 基金项目： | 国家重点研发计划（2017YFB0103904）；山东自然科学基金（ZR2017PEE007） |
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| 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。
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| 关 键 词： | AZ80，组织；力学性能；组织细化 |
| 收稿时间： | 2017-09-20 |
| 修稿时间： | 2017-12-14 |
Effects of Sn on the Microstructure and Mechanical properties of as-cast AZ80 alloys |
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| Zhou Jixue,Ma Baichang,Wang Jinwei,Liu Yunteng,Zhao Dongqing,Tang Shouqiu and 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 |
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| Authors: | Zhou Jixue Ma Baichang Wang Jinwei Liu Yunteng Zhao Dongqing Tang Shouqiu Yang Yuansheng |
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| Affiliation: | Materials Institute, Shandong Academy of Sciences,Materials Institute, Shandong Academy of Sciences,Materials Institute, Shandong Academy of Sciences,Materials Institute, Shandong Academy of Sciences,Materials Institute, Shandong Academy of Sciences,Materials Institute, Shandong Academy of Sciences,Institute of Metal, Chinese Academy of Sciences |
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| Abstract: | 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. |
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| Keywords: | AZ80 Microstructure Microstructure refinement Mechanical property |
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