李高林,文九巴,贺俊光,马景灵,杨永顺,李君峰

• 1:河南科技大学材料科学与工程学院
• 2:河南省有色金属材料科学与加工技术重点实验室

摘要(Abstract)：

通过静态失重法、扫描电子显微镜及能谱分析、X射线衍射、电化学测试法等测试手段对添加不同含量(0~0.8%)稀土元素Nd的AZ80镁合金的铸态组织和耐蚀性能进行研究。结果表明:适量稀土Nd的加入细化了合金中的β-Mg17Al12相,并且其组织由连续网状分布变为断续状、均匀分布。稀土Nd与合金中Al结合形成颗粒状或块状的稀土相Al3Nd。本实验条件下,添加0.2%Nd提高了合金的腐蚀电位,降低了腐蚀电流密度,显著降低合金的腐蚀速率,使合金的耐腐蚀性能得到显著提高。

关键词(KeyWords)： Nd;AZ80镁合金;组织;耐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 西北工业大学凝固技术国家重点实验室开放课题资助项目(SKLSP201008);; 河南省自然科学基金项目(092300410132);; 河南省科技攻关项目(072102230007)

作者(Author): 李高林,文九巴,贺俊光,马景灵,杨永顺,李君峰

DOI: 10.13289/j.issn.1009-6264.2013.12.009

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