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Acta Metall Sin  1982, Vol. 18 Issue (3): 264-271    DOI:
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HOT SALT STRESS CORROSION CRACKING OF TITANIUM ALLOY Ti-6A1-4V
Yu Bingxi; Zhang Suisheng and Wan Xiaojing (Institute of Metal Research; Academia Sinica; Shenyang)
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Yu Bingxi; Zhang Suisheng and Wan Xiaojing (Institute of Metal Research; Academia Sinica; Shenyang). HOT SALT STRESS CORROSION CRACKING OF TITANIUM ALLOY Ti-6A1-4V. Acta Metall Sin, 1982, 18(3): 264-271.

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Abstract  Experiments were carried out on the hot salt stress corrosion cracking (HSSCC) of titanium alloy Ti-6Al-4V. The steady-state threshold stress for HSSCC in the temperature range of 300—420℃ was found to be lower than their creep strength at the same temperature. The post-exposure ductility of the specimens after HSSCC is susceptible to the strain rate. By ion microproble analysis, results show that hydrogen is markedly concentrated along the fractographic surface. It seems that the hydrogen produced halide salt corrosion and subsequently absorbed by the titanium alloy is responsible for cracking.
Received:  18 March 1982     
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