EFFECT OF HYDROGEN ON HIGH TEMPERATUREPLASTICITY OF Ti-6Al-4V ALLOY

Acta Metall Sin

1991, Vol. 27

Issue (4): 26-29 DOI:

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EFFECT OF HYDROGEN ON HIGH TEMPERATUREPLASTICITY OF Ti-6Al-4V ALLOY

XU Zhensheng;GONG Bo;ZHANG Caibei;LAI Zuhan Northeast University of Technology; Shenyang

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XU Zhensheng;GONG Bo;ZHANG Caibei;LAI Zuhan Northeast University of Technology; Shenyang. EFFECT OF HYDROGEN ON HIGH TEMPERATUREPLASTICITY OF Ti-6Al-4V ALLOY. Acta Metall Sin, 1991, 27(4): 26-29.

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Abstract The effect of hydrogen on flow stress, strain rate sensitivity and elong-ation at high temperature for Ti-6Al-4V alloy has been investigated. When hydro-gen content is within a certain proper range, both the flow stress and the tempera-ture of superplasticity are decreased with only a small change of strain rate sensiti-vity exponent. The ductility is improved in the temperature 800--860℃.

Key words: hydrogen Ti-6Al-4V alloy strain rate sensitivity high temperature superplasticity microstructure

Received: 18 April 1991

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1991/V27/I4/26

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