结晶温度对Pb-Ca-Sn-Al合金组织与耐腐蚀性能影响研究  

Study on the effects of crystallization temperature on the microstructure and corrosion resistance of Pb-Ca-Sn-Al alloy

作　　者：焦凯 庞雨雨 张行祥 史俊雷 张祖波 夏诗忠 JIAO Kai;PANG Yuyu;ZHANG Xingxiang;SHI Junlei;ZHANG Zubo;XIA Shizhong(Storage Battery Research Institute Co., Ltd., Camel Group, Xiangyang Hubei 441000, China)

机构地区：[1]骆驼集团蓄电池研究院有限公司,湖北襄阳441000

出　　处：《蓄电池》2017年第4期154-159,共6页Chinese LABAT Man

摘　　要：通过浇铸,制备出不同结晶温度下的Pb-Ca-Sn-Al合金样件,然后对合金的电化学性能、耐腐蚀性能进行了测试,对合金腐蚀产物的形貌进行了SEM观察,并对合金及其腐蚀深度进行了金相观察。研究结果表明,当结晶温度为15℃时,Pb-Ca-Sn-Al合金在30℃Tafel测试和75℃恒流腐蚀的腐蚀速率分别达到最小值1.19 g/(m^2·h)、3.09 g/(m^2·h),其金相腐蚀深度也为最小值,约205μm。In this paper,the Pb-Ca-Sn-Al alloy samples were prepared by casting at differentcrystallization temperature.The electrochemical performance and anti-corrosion performance weretested,the morphology of corrosion products were observed by SEM,and the corrosion depth andmetallography of alloy samples were observed.The results show that Pb-Ca-Sn-Al alloy corrosion ratesunder the conditions of30℃Tafel test and75℃constant current corrosion reach the minimum valueof1.19g/(m2.h)and3.09g/(m2.h)respectively,and the minimum corrosion depth is about205μmwhen the crystallization temperature is15℃.

关 键 词：Pb-Ca-Sn-Al合金 正极板栅 结晶温度 金相 腐蚀速率 耐腐蚀性 

分 类 号：TM912.1[电气工程—电力电子与电力传动]