轧制Pb-Sb-Ag-Ca合金阳极Sb含量对其显微硬度和耐腐蚀性的影响  

Microhardness and Corrosion Resistance of Rolled Lead-Antimony-Silver-Calcium Alloy Anode Containing Different Content of Antimony

作　　者：杨海涛[1] 刘焕荣[2] 张永春[1] 陈步明[1] 郭忠诚[1,3] 徐瑞东[1] 

机构地区：[1]昆明理工大学冶金与能源工程学院,云南昆明650093 [2]昆明理工大学国土资源工程学院,云南昆明650093 [3]昆明理工恒达科技有限公司,云南昆明650106

出　　处：《材料保护》2013年第7期66-68,8,共3页Materials Protection

基　　金：国家自然科学基金(51004056);中国科学院特种无机涂层重点实验室开放基金(KKZ6201152009);高等学校博士学科点专项科研基金(20125314110011);云南省应用基础研究基金(2010ZC052);昆明理工大学分析测试基金(2011173)资助

摘　　要：为了系统探究元素Sb对Pb-Ag-Ca轧制三元合金阳极性能的影响，制备了不同Sb含量的合金阳极Pb-（0．2％～1．0％）Sb-0．3％Ag-0．06％Ca，测量了维氏显微硬度，并将其置于半工业加速电解锌液中电解42d，分析其失重率和腐蚀形貌。结果表明：在Pb．0．3％Ag-0．06％Ca合金阳极中加入Sb会使阳极硬度降低，含Sb阳极硬度随Sb含量升高而增加；经过42d连续电解，Pb-0．6％Sb-0．5％Ag-0．06％Ca合金阳极呈现零星、离散的点蚀，且点蚀深度较浅，没有出现液面腐蚀现象，失重率较小，表现出了较好的耐腐蚀性能。Rolled alloy anodes Pb-x%Sb-0.3%Ag-0.06%Ca with different content of Sb(x = 0.2,0.4,0.6,0.8 and 1.0) were prepared.The microhardness of as-prepared Pb-Sb-Ag-Ca alloy anodes was measured. Moreover,as-prepared Pb-Sb-Ag-Ca alloy anodes were electrolyzed in a half-industrial accelerated electrolyte,and their weight loss and corroded surface morphology were analyzed.Results indicated that introducing Sb into Pb-0.3%Ag-0.06%Ca alloy anode led to decreased microhardness,and the microhardness of the alloy anodes tended to rise with increasing Sb content.After 42 d of continuous electrolysis,Pb-0.6%Sb-0.3%Ag-0.06% Ca alloy anode was dominated by random and scattered shallow pitting,and it was free of liquid surface corrosion and had a small weight loss,showing good corrosion resistance.

关 键 词：Pb-Ag—Ca合金阳极 元素Sb 硬度 失重率 耐蚀性 

分 类 号：TG339[金属学及工艺—金属压力加工]