稀土对铅蓄电池Pb-4.5Sb合金阳极腐蚀性能的影响

来源期刊：中南大学学报(自然科学版)1988年第1期

论文作者：谭新常 田荣璋

文章页码：44 - 50

关键词：铅锑合金； 铅蓄电池； 阳极； 耐腐蚀性； 稀土金属合金； 镧添加合金； 铈添加合金； 混合稀土； 显微组织(金相学)； 电子显微镜分析； X射线射衍分析

Key words：lead antimony alloys； lead accumulator； anodes； corrosion resistance； rare earth alloys； lanthanum additions； cerium additions； misch rare earth； micro-structure(metallography)； electron-microscopic analysis； X-ray diffraction analysis

摘    要：用恒电流失重法,金相显微分析,扫描电镜及X射线衍射等方法研究了镧、铈及混合稀土对pb-4.5Sb合金阳极腐蚀性能的影响。发现铈能改善合金的阳极腐蚀性能,而镧及混合稀土均使合金的阳极腐蚀性能变差。从内部组织及阳极腐蚀膜的结构与组成等方面,解释了稀土对Pb-4.5Sb合金阳极腐蚀性能的影响。

Abstract: The effect of La, Ce and misch metal on the anodic corrosion properties of Pb-4. 5Sb alloy were studied by means of the weight-loss method, metallographic microscope, SEM and X-ray diffraction. It was found that Ce may improve the anodic corrosion properties of the alloy, but La and misch metal may make its pro- perties worse. The effect of these rare metals on the anodic corrosion properties were explained in terms of the internal structure, the composition and structure of anodic corrosion film.