The sulfur-enhanced effect of absorbing hydrogen in electroformed nickel–rhenium alloy

The amount of cathodic absorption of hydrogen increases with increase in either the percentage of rhenium or the amount of absorbing sulfur in electroformed nickel–rhenium alloys. According to the results of thermal hydrogen outgassing process, the absorbing hydrogen (AH) of the crack-free alloy dep...

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Bibliographic Details
Published in:Materials chemistry and physics 2001-05, Vol.70 (2), p.168-174
Main Authors: Huang, Chein-Ho, Jan, Jong-Rong, Shu, Wen-Yung, Wu, Hsien-Ming
Format: Article
Language:English
Subjects:
Absorbing hydrogen
Applied sciences
DSC
Electroforming
Exact sciences and technology
Forming
Hydride
Metals. Metallurgy
Other forming methods
Production techniques
Sulfur-enhanced
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Summary:The amount of cathodic absorption of hydrogen increases with increase in either the percentage of rhenium or the amount of absorbing sulfur in electroformed nickel–rhenium alloys. According to the results of thermal hydrogen outgassing process, the absorbing hydrogen (AH) of the crack-free alloy deposits exists in a stable hydride state. However, when the amount of AH is greater than the solubility in the stable hydride state, the hydride formation becomes unstable, and cracked deposits are formed. Because the absorbing sulfur enhanced the solubility of AH in the stable hydride state, a crack-free alloy electroform with a greater amount of AH was obtained.
ISSN:0254-0584
1879-3312
DOI:10.1016/S0254-0584(00)00494-6