HYDROGEN EMBRITTLEMENT OF STABLE AUSTENITIC STAINLESS STEEL

J Chin Soc Corr Pro

1984, Vol. 4

Issue (3): 213-217 DOI:

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HYDROGEN EMBRITTLEMENT OF STABLE AUSTENITIC STAINLESS STEEL

Kao Xuerong (Hefei Institute of General Machinery; MMB) Li Jisen Liu Woheng (Baotou Research Institute of metallurgy)

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Abstract Hydrogen embrittlement of stable austenitic stainless steel Cr20Ni25 has been investigated. Crack formation and phase transformation on the surface of the specimens have been observed. It is shown that electrolytic hydrogen charging promotes the transformation of e-martensite on the surface of specimens, the formation of surface crack and the formation of new fcc phase. Transgranular cleavage fracture is shown for the charged layer in tensile specimen. The crack propagates along slip face.The present study suggests that stable austenitic stainless steel is also subject to hydrogen embrittlemt. The transformation of α′-martensite may be not necessary for hydrogen embrittlement of austenitie stainless steel.

Received: 25 June 1984

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Kao Xuerong (Hefei Institute of General Machinery; MMB) Li Jisen Liu Woheng (Baotou Research Institute of metallurgy). HYDROGEN EMBRITTLEMENT OF STABLE AUSTENITIC STAINLESS STEEL. J Chin Soc Corr Pro, 1984, 4(3): 213-217.

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https://www.jcscp.org/EN/ OR https://www.jcscp.org/EN/Y1984/V4/I3/213

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