%0 Journal Article
%T EFFECTS OF HEAT TREATMENT AND ENVIRONMENT ON CRACK PROPAGATION RATE IN STEEL GC-4 UNDER CORROSION FATIGUE AND STRESS CORROSION
%A LU Minxu LIU Xiaokun WANG Jianjun FU Xiangjiong ZHENG Xiulin Northwestern Polytechnical University
%A Xi''an
%A China Lecturer
%A <br>LU Minxu LIU Xiaokun WANG Jianjun FU Xiangjiong ZHENG Xiulin Northwestern Polytechnical University
%A Xi''''an
%A China Lecturer
%J 金属学报(英文版)
%D 1992
%I 
%X Comparative investigations were carried out of the effect of heat treatment regimes Jor steel GC-4(40CrMnSiMoVA)on its crack propagating rates,from corrosion fatigue, (da/dN)_(CF),or stress corrosion cracking,(da/dt)_(SCC),in media with various constituents and pH values.Both(da/dN)_(CF) and(da/dt)_(SCC) accelerate with the increase of yield stress of the steel,yet the former is far less than the later.In comparison with media,the (da/dt)_(SCC) in distilled water is slightly greater than that in 3.5% NaCl solution,and the (da/dN)_(CF) in distilled water is far less than that in 3.5% NaCl solution.With the pH value increasing in 3.5% NaCl solution,the(da/dN)_(CF) lowers down and the(da/dt)_(SCC) speeds up.An explanation was also proposed with concept of the cyclic hardening and softening at crack tip,as well as the crack closure and occluded cell effect.
%K crack propagating rate
%K corrosion fatigue
%K stress corrosion cracking
%K heat treatment
%K pH value<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=75C46F14D7830B61603D06E86C0A59B0&yid=F53A2717BDB04D52&vid=94C357A881DFC066&iid=9CF7A0430CBB2DFD&sid=DD74772618543076&eid=3A0155B37D8FF829&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=10