刘子利,周桂斌,刘希琴,朱晓春

• 1:南京航空航天大学材料科学与技术学院

摘要(Abstract)：

研究了合金元素Cd含量对AM50-Y-0.6Sb镁合金的显微组织和腐蚀性能的影响。研究表明,AM50-Y-0.6Sb合金组织主要由α-Mg固溶体、β-Mg17Al12相、Al2Y相、YSb相组成。随着Cd含量增加,合金组织逐渐细化,Cd固溶于基体不形成新相,当Cd含量为1%时,晶粒和析出相最为均匀细小分布。合金腐蚀速率和腐蚀电流密度随着Cd的增加而降低,而自腐蚀电位正移。当Cd含量为1%时,合金耐蚀性最佳,腐蚀速率仅有1.07 mg.cm-2.d-1,比未添加Cd合金降低了42.5%。

关键词(KeyWords)： AM50-Y-0.6Sb;Cd;显微组织;腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 江苏省自然科学基金(BK2009577);; 江苏省科技支撑计划项目(BE2010103)

作者(Author): 刘子利,周桂斌,刘希琴,朱晓春

DOI: 10.13289/j.issn.1009-6264.2013.01.014

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