从阳极极化稳定电位、腐蚀速率、阳极极化后表面产物、极化前后的显微组织结构等方面研究Pb-0.3%Ag-0.03%Ca-0.03%Sr四元系合金的阳极极化行为,并与Pb-1%Ag二元合金阳极对比分析.结果表明:当电流密度为50 mA/cm2时,Pb-1%Ag和Pb-0.3%Ag-0.03%Ca-0.03%Sr合金阳极的稳定电极电位分别为1.835 V和1.875 V,腐蚀速率分别为57 mg(m2·h)和104 mg/(m2·h);Pb-1%Ag阳极电解后表面结构致密,与基体结合紧密,其物相组成为α-PbO2、β-PbO2、PbSO4、Pb和Ag2SO4;Pb-0.3%Ag-0.03%Ca-0.03%Sr阳极电解后表层呈疏松鳞片状,其物相组成为α-PbO2、β-PbO2、PbSO4和PbO1.57.
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