Ta与Ta-2.5W在硫酸溶液中的电化学性能比较  

Comparison of Electrochemical Property between Ta & Ta-2.5W Alloy in Sulfuric Acid Solution

作　　者：王赢利[1] 宋学泳[1] 周明[1] 郭金彪[1] 

机构地区：[1]兰州石油化工公司,甘肃兰州730060

出　　处：《稀有金属快报》2007年第2期36-39,共4页Rare Metals Letters

摘　　要：利用电化学测试仪Model273A测试了Ta和Ta-2.5W在温度为60℃,浓度为30%,60%和80%的硫酸溶液中的Tafel曲线和动电位扫描阳极极化曲线。结果表明,在3种浓度的硫酸溶液中,Ta-2.5W的腐蚀倾向小于Ta的腐蚀倾向,腐蚀电流密度比Ta的小,钝化性能比Ta的优越。In this paper, We tested the Tafel curves ＆ anodic polarization curves of Ta and Ta-2.5W Mloy in 30%, 60% and 80% sulfuric acid solution at 60℃ temperature. The results showed that, in the three kinds of sulfuric acid solution, the corrosion tendency ＆ corrosion electrical current density of Ta-2.5W alloy is less than those of Ta, and the passivation property of Ta-2.5W alloy is better than that of Ta.

关 键 词：TA Ta-2.5W 电化学性能 

分 类 号：TG146.16[一般工业技术—材料科学与工程]