摘要
基于铅阳极的耐腐蚀机制,对Pb-0.08%Sr,Pb-0.08%La,Pb-0.8%Ag(退火)和Pb-0.8%Ag(未退火)四种铅基合金阳极工作的电化学性能进行了分析,同时采用扫描电子显微镜(SEM)和能量色散光谱(EDS)分析四种阳极材料的相组成及观察四种阳极材料的微观形貌。结果显示:腐蚀后Sr元素基本溶解消失,La元素则完全腐蚀溶解,未经退火处理的Pb-0.8%Ag合金Ag元素有微量的剩余,退火作用的Pb-0.8%Ag合金在经过腐蚀后不论是结晶体还是非结晶体均仍存有部分的Ag元素,说明Pb-0.8%Ag复合铅基阳极的耐腐蚀性要高于Pb-0.08%Sr和Pb-0.08%La,并且经过高温退火处理可以提高铅基合金材料的电化学性能。
Based on the corrosion-resistant mechanism of lead anode,we analyzed the electrochemistry properties of four kinds of anodes of lead-based alloy(Pb-0.08%Sr,Pb-0.08%La,Pb-0.8%Ag(annealing)and Pb-0.8%Ag(unannealed)),we also used scanning electron microscope and energy dispersion spectroscopy to analysis phase composition of four kinds of anode material,as well as the microtopography of four kinds of anode material.Results show:After corrosion,Sr element basically dissolves and disappears,La element is completely corroded and dissolved,the unannealed Pb-0.8%,Ag element has trace amount rest in Ag alloy;after corrosion,the annealing Pb-0.8%,partial Ag element still exists in Ag alloy no matter it was crystalline or amorphous,it means the corrosion resistance of Pb-0.8%Ag composite lead-based anode is higher than Pb-0.08%Sr and Pb-0.08%La,and high temperature annealing treatment can increase the electrochemistry properties of lead-based alloy material.
作者
陈继园
李璐
李玉章
李雨耕
张兴国
张韦晨
李传勇
CHEN Ji-yuan;LI Lu;LI Yu-zhang;LI Yu-geng;ZHANG Xing-guo;ZHANG Wei-chen;LI Chuan-yong(Faculty of Material Science and Engineering,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;Analysis and Testing Research Center,Kunming University of Science and Technology,Kunming,Yunnan 650093,China;Kunming Metallurgical Research Institute Co.,Ltd.,Kunming,Yunnan 650031,China)
出处
《云南冶金》
2023年第1期100-105,共6页
Yunnan Metallurgy
基金
复杂共伴生硫化锌精矿湿法冶金减渣量化与提质增效关键技术研发及产业化(202207AB110003)
高效锌电积用铝阴极板成套技术研发(202104AR040008)。
关键词
电沉积
锌用铅基
耐腐蚀性
电化学
退火
electrodeposited
lead-based zinc
corrosion resistance
electrochemistry
Annealing
