EFFECTS OF CRITICAL HYDROGEN CONCENTRATION AND STRESS ON HYDROGEN-INDUCED CRACKING IN PLAIN STEEL 20

Acta Metall Sin

1990, Vol. 26

Issue (6): 68-74 DOI:

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EFFECTS OF CRITICAL HYDROGEN CONCENTRATION AND STRESS ON HYDROGEN-INDUCED CRACKING IN PLAIN STEEL 20

ZHANG Boyu;DIAO Fengqiong;TANG Xiangyun Tsinghua University

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ZHANG Boyu;DIAO Fengqiong;TANG Xiangyun Tsinghua University. EFFECTS OF CRITICAL HYDROGEN CONCENTRATION AND STRESS ON HYDROGEN-INDUCED CRACKING IN PLAIN STEEL 20. Acta Metall Sin, 1990, 26(6): 68-74.

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Abstract The theoretical model to calculating critical hydrogen concentration wasreviewed using Devanathen's hydrogen permeation method. The distribution of hydro-gen coneentration along the direction of hydrogen permeation and the critical hydro-gen concentration during hydrogen--induced crack growing, mainly along MnS inclu-sion interfaces, in the hardened and tempered steel 20 have been determined. The al-lied problems were also discussed briefly.

Key words: hydrogen-induced cracking stress critical hydrogen concentration hydrogen permeation

Received: 18 June 1990

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1990/V26/I6/68

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