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J Chin Soc Corr Pro  1989, Vol. 9 Issue (3): 184-191    DOI:
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FATIGUE CRACK GROWTH OF 15Mn STEEL IN 3.5% NaCl SOLUTION
Xing Zhiqiang Song Yujiu (Xi'an Jiaotong University)
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Abstract  The crack growth of 15Mn steel with various microstructures in 3.5% NaCl solution was investigated, It is found that the microstructures of steels have Considerable influence on corrosion fatigue. With increasing Stress intensities,crack closure effect decreases and average hydrogen content at crack tip increases. The fracture modes vary from striations to intergranular fracture and then to quasi-cleavage fracture with crack growth. The relation between electrochemical conditions and mechanical variables is discussed. The componund mechanisms of corrosion fatigue are proposed. A fracture-mode-map of 15Mn steel is worked out.
Received:  25 June 1989     
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Xing Zhiqiang Song Yujiu (Xi'an Jiaotong University). FATIGUE CRACK GROWTH OF 15Mn STEEL IN 3.5% NaCl SOLUTION. J Chin Soc Corr Pro, 1989, 9(3): 184-191.

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https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y1989/V9/I3/184

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