MATERIALS TRANSACTIONS
Online ISSN : 1347-5320
Print ISSN : 1345-9678
ISSN-L : 1345-9678
Effects of Additional Elements on the Glass Formation and Corrosion Behavior of Bulk Glassy Cu-Hf-Ti Alloys
Chunling QinKatsuhiko AsamiTao ZhangWei ZhangAkihisa Inoue
Author information
JOURNAL FREE ACCESS

2003 Volume 44 Issue 5 Pages 1042-1045

Details
Abstract

New bulk glassy (Cu0.6Hf0.25Ti0.15)98M2(M = Mo, Ta and Nb) alloys with high thermal stability were synthesized and the effects of additional elements Mo, Ta and Nb on the glass formation and corrosion behavior were examined. The maximum diameter for glass formation of the 2 at%Mo, 2 at%Ta and 2 at%Nb alloys was 1.5 mm, 3.5 mm and 4.0 mm, respectively. The corrosion behavior of the Cu–Hf–Ti–(Mo, Ta and Nb) glassy alloys was examined by weight loss and electrochemical measurements. By substitution of 2 at%Mo, Ta or Nb for the Cu60Hf25Ti15 alloy, the corrosion rates of the alloys decreased to 1⁄2 in 1 N HCl and two orders of magnitude in 3% NaCl solution. It was also found that substitution of elements Mo, Ta and Nb for the Cu60Hf25Ti15 glassy alloy was effective on decreasing anodic passive current density in 3% NaCl solution.

Content from these authors
© 2003 The Japan Institute of Metals and Materials
Previous article Next article
feedback
Top