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J Chin Soc Corr Pro  1989, Vol. 9 Issue (3): 235-239    DOI:
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CONCENTRATION DISTRIBUTION OF HYDROGEN AT CRACK TIP OF AUSTENITIC STAINLESS STEEL AFTER STRESS CORROSION AND HYDROGEN CHARGING
Qiao Lijie Xiao Chimei Chu Wuyang (Beijing University of Iron and Steel Technology) Chen Lian Liu Shuwang and Zou Junjun (Institute of Metal Research; Academia Sinica)
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Abstract  The concentration distribution of hydrogen at crack tip of austenitic stainless steel 321 after stress corrosion and polarization was determined by LT-1A type Ion Microprobe Mass Analyzer(KYKY). Although the concentration of hydrogen at crack tip after stress corrosion cracking at open circuit or under cathodic polarization is higher than that under anodie polarization, yet the cracking time of the latter is much shorter than that of the former. Although the hydrogen evolved during stress corrosion can enter and can be enriched in the crack tip region, yet the amount of enrichment is not sufficient to cause cracking. It is concluded that anodic dissolution plays a controlling role during stress corrosion cracklng of this system.
Received:  25 June 1989     
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Qiao Lijie Xiao Chimei Chu Wuyang (Beijing University of Iron and Steel Technology) Chen Lian Liu Shuwang and Zou Junjun (Institute of Metal Research; Academia Sinica). CONCENTRATION DISTRIBUTION OF HYDROGEN AT CRACK TIP OF AUSTENITIC STAINLESS STEEL AFTER STRESS CORROSION AND HYDROGEN CHARGING. J Chin Soc Corr Pro, 1989, 9(3): 235-239.

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y1989/V9/I3/235

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