THE CORROSION BEHAVIOR OF SPUTTER-DEPOSITED AMORPHOUS CR-NB AND CR-TA ALLOYS IN 12-M HCI SOLUTION

被引:43
作者
KIM, JH
AKIYAMA, E
HABAZAKI, H
KAWASHIMA, A
ASAMI, K
HASHIMOTO, K
机构
[1] Institute for Materials Research, Tohoku University, Sendai
关键词
D O I
10.1016/0010-938X(93)90052-I
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Binary Cr-Nb and Cr-Ta alloys containing 29-63 at% niobium and 26-69 at% tantalum, respectively, with a single phase amorphous structure, were formed by a sputtering method. Corrosion rates of amorphous Cr-Nb alloys were about four orders of magnitude lower than that of chromium metal and about one fifth of that of niobium metal in 12 M HCl solution. Corrosion rates of amorphous Cr-Ta alloys were lower than that of tantalum metal and were not detected even after about 1 week immersion in 12 M HCl solution. The Cr-Nb and Cr-Ta alloys were spontaneously passive in 12 M HCl solution, in spite of the fact that chromium dissolved actively in 12 M HCl solution.
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收藏
页码:1947 / 1955
页数:9
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