刘芳芳,王文先,陈洪胜,张媛琦.Mg-8Sn系镁合金SPS制备及其组织性能研究[J].稀有金属材料与工程,2018,47(7):2159~2165.[liufangfang,wangwenxian,chenhongsheng,zhangyuanqi.The research of the microstructure and properties ofMg-8Sn alloy prepared by SPS[J].Rare Metal Materials and Engineering,2018,47(7):2159~2165.]
Mg-8Sn系镁合金SPS制备及其组织性能研究
投稿时间:2016-07-12  修订日期:2016-09-14
中文关键词:  放电等离子烧结  Mg-8Sn-1Al-1Zn  微观组织  弯曲强度  耐腐蚀性
基金项目:国家自然科学基金资助(项目号51375328)
中文摘要:
      基于Mg-8Sn系镁合金具有较好的强度、耐腐蚀性和塑性加工性,本文采用放电等离子烧结方法(Spark plasma sintering:SPS)在530~590 ℃制备了Mg-8Sn-1Al-1Zn镁合金,对镁合金的微观组织、物相、力学性能和耐腐蚀性能进行了研究。结果表明:镁合金的显微组织由α-Mg和Mg2Sn相组成,Mg2Sn相在界面处产生。在制备温度为570 ℃时弯曲强度最高,可达215 MPa。当烧结温度为590 ℃时镁合金的耐腐蚀性能最好,其电化学的电极电位和腐蚀电流分别为-1.5218 V和1.9632×10-5 A/cm2,这主要是由于Mg2Sn在颗粒接合边界的存在,对α-Mg起到保护作用。
The research of the microstructure and properties ofMg-8Sn alloy prepared by SPS
英文关键词:spark plasma sintering (SPS)  Mg-8Sn-1Al-1Zn  microstructure  bending strengh  corrosion resistance
英文摘要:
      Based on the better strength, corrosion resistance and plastic processing of Mg-8Sn alloy, Mg-8Sn alloy was prepared successfully in 530~590 ℃ by spark plasma sintering (SPS) in this paper. The microstructures, phases, mechanical properties and corrosion resistance were investigated. The research results showed that the microstructure consisted of α-Mg and Mg2Sn phases, while Mg2Sn was generated at the interface of Mg and Sn. The highest bending strengh of Mg-8Sn-1Zn-1Al was 215 MPa which was obtained at 570 ℃. The best corrosion resistance of Mg-8Sn-1Zn-1Al was obtained at 590 ℃, of which the corrosion potential and the corrosion current were respectively -1.5218 V, 1.9632×10-5 A/cm2. That was because Mg2Sn was existed at particles bonding interface, which had protective effects on α-Mg.
作者单位E-mail
刘芳芳 先进镁基材料山西省重点实验室 luoyangliufangfang@163.com 
王文先 先进镁基材料山西省重点实验室  
陈洪胜 先进镁基材料山西省重点实验室  
张媛琦 先进镁基材料山西省重点实验室  
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