龚圆,贺俊光,文九巴,田培梧

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属共性技术协同创新中心

摘要(Abstract)：

通过光学显微镜(OM)、扫描电镜(SEM)、浸泡试验、析氢试验、电化学试验和拉伸试验等研究了Sn元素对Mg-1Zn-0.3Zr-1Y-xSn(x=0、0.5、1、1.5、2、2.5、3)生物镁合金组织、耐蚀性能和力学性能的影响。结果表明:添加Sn元素后,合金的耐蚀性和综合力学性能都有一定的提升。当Sn含量为2 mass%时,合金的耐蚀性和综合力学性能最好,合金在模拟体液中浸泡120 h后的平均腐蚀速率由未添加Sn元素的2.010 mm/y降至1.201 mm/y,自腐蚀电位正移为-1.433 V,自腐蚀电流密度降为2.208μA/cm~2,屈服强度、抗拉强度和伸长率分别为153.6 MPa、210.9 MPa和19.1%。

关键词(KeyWords)： 生物镁合金;耐蚀性能;力学性能;Sn

Abstract:

Keywords:

基金项目(Foundation): 河南省高等学校重点科研项目(20A430010)

作者(Author): 龚圆,贺俊光,文九巴,田培梧

DOI: 10.13289/j.issn.1009-6264.2021-0309

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