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| STRESS CORROSION CRACKING OF AUSTENITIC STAINLESS STEEL UNDER COMPRESSIVE STRESS |
| YAO Jing; CHU Wuyang; XIAO Jimei (Beijing University of Iron and steel Technology) |
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Cite this article:
YAO Jing; CHU Wuyang; XIAO Jimei (Beijing University of Iron and steel Technology). STRESS CORROSION CRACKING OF AUSTENITIC STAINLESS STEEL UNDER COMPRESSIVE STRESS. Acta Metall Sin, 1983, 19(5): 81-156.
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Abstract Experiments were conducted in the stress corrosion cracking (SCC) of the austenitic stainless steel in boiling 42% MgCl_2 solution under compressive stress using three different types of specimens with surface residual compressive stress; of U-bend or of notched modified WOL. The SCC was observed on them after 110, 73—100 or 262—324 h respectively. Their fracture surface are charaterized by the stratified rock structure and the striation-like pattern of quasi-cleavage rather than the river marks or the fan pattern under the tensile stress. Almost one order of magnitude of the incubation period of SCC under the compressive stress is prolonged beyond that under tension. Because the cracking propagates very slowly and spreads hardly to distinguish, the SCC under compressive stress does not be revealed, if it is under tensile stress simultaneously. The behaviour of hydrogen in SCC of such system has been also discussed.
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Received: 18 May 1983
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