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GROWTH OF SHORT CRACKS OF A537CL1 STEEL UNDER FATIGUE LOADING IN 3.5% NaCl SOLUTICN |
PEI Hongxun;YANG Jingjun;KE Wei Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang |
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Cite this article:
PEI Hongxun;YANG Jingjun;KE Wei Institute of Corrosion and Protection of Metals; Academia Sinica; Shenyang. GROWTH OF SHORT CRACKS OF A537CL1 STEEL UNDER FATIGUE LOADING IN 3.5% NaCl SOLUTICN. Acta Metall Sin, 1988, 24(6): 471-475.
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Abstract The effects of environmental media, both in atmosphere and in 3.5%NaCl aqueous solution, on the growth of short cracks in comparison with thelong ones have been investigated under fatigue loading on the specimens of single-edge crack about 0.05--0.15 mm for A537CL 1 steel. The growth rate of short cracksis faster than those of long ones around the threshold stress intensity. The thresh-old stress intensity for short crack growth decreases with decreasing crack length.The acceleration effect of the salt water, as compared with atmosphere environ-ment, on the growth of short cracks under fatigue is much greater than that on thegrowth of long cracks.
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Received: 18 June 1988
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