Acta Metall Sin  1991, Vol. 27 Issue (6): 115-121    DOI:

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EFFECT OF HEAT TREATMENT ON CRACK PROPAGATING RATE OF GC-4 STEEL FROM CORROSION FATIGUE OR STRESS CORROSION IN VARIOUS MEDIA

LU Minxu;LIU Xiaokun;WANG Jianjun;FU Xiangjiong;ZHENG Xiulin Northwestern Polytechnical University; Xi'an

LU Minxu;LIU Xiaokun;WANG Jianjun;FU Xiangjiong;ZHENG Xiulin Northwestern Polytechnical University; Xi'an. EFFECT OF HEAT TREATMENT ON CRACK PROPAGATING RATE OF GC-4 STEEL FROM CORROSION FATIGUE OR STRESS CORROSION IN VARIOUS MEDIA. Acta Metall Sin, 1991, 27(6): 115-121.

Abstract References Related Articles Recommended Metrics Download:  PDF(610KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Comparative investigations were ca1ricd cut of tLe efItct of Leat 1reatment regimes for GC--4 steel, 40CrMnSiMoVA, on its c1ack p1opagating ratcs, from corrosion fatigue, (da/dN)..' or stress cor1osion crackirg, (do/dt),.,', in mcdia with various constituents and VH va1ues. Both (da/dN).. 8'r d (do/dt),.. acce!cra1e wi1h tbe increase of yieId stress of the steel, yet the fOraner js far 1ess tLan 1Le l8tcr. ]n ccmparison with mcdia, tLe (do/dt),,. in distil1td water is sligLt1y grca1cr 1Lan tbat in 3.5% NaCl solution, and tLe (dQ/dN)., in distil1cd water is far less ttan tkat in 3.5% NaCl solution. With the pH value increasing in 3.5% NLCl ao1ution, 1le (do/dN). F lQwerS down and the (da/dt),.. specds up. An xplahation was a1Eo r1oroltd witb concept of the cyclic bardening and softeniDg at crack tip, as we1l as the crack c1osure and occluded ceU effect. Key words:  crack propagating rate      corrosion fatigue      stress corrosion cracking      heat treatment      pH value      Received:  18 June 1991      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1991/V27/I6/115 1 郑文龙,朱国培,欧阳怀谨,李革.金属学报,1986;22:A275--A282 2 陈汉存、刘正义,庄育智.中国腐蚀与防护学报,1989;9(2) :79--86 3 郑文龙,蔡安定,朱国培.金属学报,1983;19:A134--A141 4 路民旭,王建军,刘晓坤,郑修麟.航空学报,1990;11:B617--B621 5 王建军,刘晓坤,路民旭.航空学报,1988;9(13) :S140--S143 6 林栋梁,吴建生,杨正瑞.金属学报,1983;19:A165--A167 7 Gerberich W W. In: Bernstein I M, Thompson A W eds., Hydrogen in Metals, ASM, 1974: 115 8 陈大明,康沫狂,谭若兵.西北工业大学学报,1990;(Suppl.):188--196 9 Turnbull A. Br Corros J, 1980; 15: 162--171 10 Sandoz G. In: Brown B F ed, Stress-Corrosion Cracking in High Strength Steels and in Titanium and Aluminium Alloy, Chapter 3: High Strength Steel, Washington D C.: Naval Research Laboratory, 1972: 79--146 11 Turnbull A, Ferriss D H. 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