Pb-Sn-Me铅酸电池板栅合金的耐腐蚀性能研究  

Investigation of corrosion resistance of Pb-Sn-Me grid alloys for lead-acid batteries

作　　者：陈建[1] 相佳媛[1] 吴贤章[1] 丁平[1] 陈亮[1] 

机构地区：[1]浙江南都电源动力股份有限公司,浙江杭州311305

出　　处：《电源技术》2013年第12期2170-2173,共4页Chinese Journal of Power Sources

摘　　要：通过对添加不同金属组元的Pb-Sn板栅合金进行微观形态与组织成分的分析,从晶界腐蚀数量、基体腐蚀深度、晶界腐蚀深度三个方面综合评价了Pb-Sn-Me系合金的耐腐蚀性能,并研究了Me的添加对合金耐腐蚀性能,尤其是晶界腐蚀特性的影响。研究发现,Me的添加对Pb0.3Sn系浇铸板栅的基体腐蚀深度和晶界腐蚀深度有较大影响。Yb、Bi、Si等组元可较好地改善板栅的耐腐蚀性能,而细化晶粒的稀土元素La、Ce等则会恶化板栅的耐腐蚀性能。总体而言,第三组元Me对Pb-Sn合金耐腐蚀的作用机理主要基于对合金晶粒尺寸、是否形成Sn-Me金属间化合物以及抗生长能力这三个方面的影响。The influence of 14 kinds of metal additives on the corrosion resistance of Pb-Sn grid alloys were investigated by considering the factors of intergranular corrosion number, matrix corrosion depth D, and intergranular corrosion depth L. The addition of Me plays an important role for both D and L for the cast alloys. Additives like Yb, Bi and Si can improve the corrosion resistant, but additives like I_a, Ce that make the grain smaller will deteriorate the corrosion resistant. Overall, the function mechanism of Me additives on the intergranular corrosion resistance of Pb-Sn-Me grid alloys is mainly attributed the effects on the grain size, whether formation of Sn-Me intermetallic compounds, or anti-growth ability.

关 键 词：Pb—Sn合金 铅酸蓄电池板栅 合金元素添加 晶界腐蚀 

分 类 号：TM912[电气工程—电力电子与电力传动]