%0 Journal Article
%T EFFECTS OF STRESS RATIO AND FREQUENCY ON CORROSION FATIGUE CRACK GROWTH IN LOW ALLOY STEEL<br>应力比和频率对低合金钢腐蚀疲劳裂纹扩展机理的影响
%A HAN Yumei
%A ZHENG Yuli
%A KE Wei Corrosion Science Laboratory
%A Institute of Corrosion
%A Protection of Metals
%A Academia Sinica
%A ShenyangHAN Enhou
%A Institute of Corrosion
%A Prolection of Metals
%A Academia Sinica
%A Shenyang
%A <br>韩恩厚
%A 韩玉梅
%A 郑宇礼
%A 柯伟
%J 金属学报
%D 1993
%I 
%X Based on theoretical analysis about local strain, strain rate and dissolving rateat crack tip, the corrosion fatigue crack growth rate of steels ZG20SiMn and SM50B-Zc infresh water and 3.5%NaCl respectively were measured experimentally, and the pH and elec-trode potential within crack were also measured continously along with crack propagating.The hydrogen concentration of materials in the crack tip region were measured. It showedthat the increase of corrosion fatigue crack growth rate, caused by both the decreasing fre-quency and the raising stress ratio, was mainly accelerated by hydrogen embrittlement.
%K corrosion fatigue
%K stress ratio
%K frequency
%K crack growth
%K steel ZG20SiMn steel SM50B-Zc<br>腐蚀疲劳
%K 应力比
%K 频率
%K 低合金钢
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=37671C85CD67CF0438E8FDC815D2FCE8&yid=D418FDC97F7C2EBA&vid=771469D9D58C34FF&iid=94C357A881DFC066&sid=4AD960B5AD2D111A&eid=933658645952ED9F&journal_id=0412-1961&journal_name=金属学报&referenced_num=1&reference_num=7