| 稀土Y+AZ91D镁合金的微观组织及耐蚀性研究 |
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| 引用本文： | 刘敏丽,刘丽. 稀土Y+AZ91D镁合金的微观组织及耐蚀性研究[J]. 热加工工艺, 2010, 39(4) |
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| 作者姓名： | 刘敏丽 刘丽 |
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| 作者单位： | 1. 内蒙古机电职业技术学院,冶金与材料工程系,内蒙古,呼和浩特,010051
2. 内蒙古工业大学材料科学与工程学院,内蒙古呼和浩特,010051 |
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| 摘 要： | 通过盐雾腐蚀试验,研究了稀土Y对AZ91D镁合金耐腐蚀性能的影响。用光学显微镜(OM)观察组织结构,应用XRD对其进行物相分析,采用静态失重法计算其腐蚀速率,比较含Y和不含Y的AZ91D镁合金的组织和耐腐蚀性能。结果表明,Y+AZ91D镁合金在NaCl溶液中具有优异的耐蚀性,并且随Y含量的增加,Mg17Al12相增多,针状组织Al4MgY也增多,细化了合金的微观组织,耐腐蚀性能也进一步得到提高。
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| 关 键 词： | 稀土钇 AZ91D镁合金 耐腐蚀 |
Research on Microstructure and Corrosion Resistance of Y+AZ91D Magnesium Alloys |
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| LIU Minli,LIU Li. Research on Microstructure and Corrosion Resistance of Y+AZ91D Magnesium Alloys[J]. Hot Working Technology, 2010, 39(4) |
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| Authors: | LIU Minli LIU Li |
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| Affiliation: | LIU Minli1,LIU Li2 (1.Metallurgy , Materials Engineering,Inner Mongolia Machine Occupation Technical College,Hohhot 010051,China,2.School of Materials Science , Engineering,Inner Mongolia University of Technology,China) |
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| Abstract: | The microstructure and phase composition of AZ91D magnesium alloys with the different additions of Y were studied by optical microscope(OM) and X-ray diffraction(XRD),and the corrosion rate was counted by static-state mass loss method.The microstructure and corrosion properties were compared between the alloys with and without the addition of Y.The results indicate that AZ91D magnesium alloys system has high anti-corrosion properties in NaCl solution.The number of Mg17Al12,Al4MgY increases with the increase... |
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| Keywords: | rare-earth Y AZ91D magnesium alloys corrosion resistance |
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