Dehydrogenation of hydrogenated Ti-6Al-4V alloy

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[1] [1,Yuan, Baoguo
[2] Liu, Dahai
[3] Li, Chunfeng
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Yuan, Baoguo | 1600年 / Science Press卷 / 43期
关键词：
Heating temperatures - Hydrogen contents - Hydrogenated Ti-6Al-4V alloy - Mass loss - TG/DSC;
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摘要：
TG/DSC tests of non-hydrogenated and hydrogenated Ti-6Al-4V alloys were carried out in order to investigate the dehydrogenation behavior of hydrogenated titanium alloys. Results indicate that mass losses of the hydrogenated Ti-6Al-4V alloys are significantly different with that of the non-hydrogenated Ti-6Al-4V alloy when the heating temperature is higher than 600 ℃. Mass loss of the hydrogenated Ti-6Al-4V alloy increases with the increasing of hydrogen content when the heating temperature is in the range of 600 ℃ to 900 ℃ due to the decomposition of metastable phases. The maximum mass loss of the hydrogenated Ti-6Al-4V alloy is in correspondence with its hydrogen content upon no consideration of oxidation. The optimal dehydrogenation temperature among hydrogenated Ti-6Al-4V alloys is 750 ℃. The dehydrogenation process for all hydrogenated Ti-6Al-4V alloys is the same. Copyright © 2014, Northwest Institute for Nonferrous Metal Research. Published by Elsevier BV. All rights reserved.
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