程丹丹,文九巴,贺俊光,姚怀,梁明岗

• 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)：

采用扫描电子显微镜(SEM)、能谱分析(EDS)、X射线衍射(XRD)研究了固溶处理对Mg-2Nd-0.5Zn-0.4Zr和Mg-2Nd-0.5Zn-0.4Zr-3Y两种镁合金显微组织的影响,通过析氢、质量损失测试及电化学方法研究其在模拟体液(SBF)中的生物腐蚀性能;并对比分析了稀土Y的添加对镁合金组织及腐蚀性能的影响。结果表明:经过固溶处理后,合金的大部分析出相溶于基体,其在SBF中腐蚀速率仅为铸态合金的44.35%和46.67%;添加稀土Y使合金中析出相增多,出现新的块状析出相Mg24Y5,合金的耐生物腐蚀性能得到提高。

关键词(KeyWords)： 固溶处理;稀土;生物镁合金;生物腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 河南省“新型有色金属材料”高校科技创新团队支持计划(2012IRTSTHN008);; 洛阳市科技攻关项目(1301001A)

作者(Author): 程丹丹,文九巴,贺俊光,姚怀,梁明岗

DOI: 10.13289/j.issn.1009-6264.2015.01.008

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