%0 Journal Article
%T EFFECT OF CATHODIC PROTECTION ON FRACTURE BEHAVIOUR OF LOWALLOY STEELS IN SEAWATER<br>阴极保护对低合金钢在海水中断裂行为的影响
%A ZHENG Wenlong
%A ZHU Xiying
%A SU Limin Shanghai Research Institute of Materials
%A <br>郑文龙
%A 朱锡英
%A 苏立民
%J 金属学报
%D 1988
%I 
%X Fracture behaviour of low-all oysteels AISI4340, HY100, WELTEN60, AISIA537 and A131 in artificial seawater under static, cyclic loading and cath-odic protection potential has been investigated by using fracture mechanics, elec-trochemistry and electronfractography. The results reveal that under hydrogen evo-lution potential (cathodic protection potential) the critical yield strength requiredfor the occurrence of SCC decreases from 985 to 872MPa comparing with corrosionpotential (E_c). The effect of cathodic protection on crack propagation of CF is notsimple, it is closely related to the yield strength of steels and their SCC behaviour.For the steels with high yield strength, cathodic protection promotes da/dN
%K Low-alloy steel
%K cathodic protection
%K stress corrosion crack
%K corrosion fatigue
%K crack propagation rate<br>低合金钢
%K 阴极保护
%K 应力腐蚀开裂
%K 腐蚀疲劳
%K 裂纹扩展速率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=B061E1135F1CBDEE96CD96C109FEAD65&aid=098953ED214911321DD7A99CEE573D17&yid=0702FE8EC3581E51&vid=B91E8C6D6FE990DB&iid=E158A972A605785F&sid=44A4891E33BFF455&eid=C1B34927D429E92F&journal_id=0412-1961&journal_name=金属学报&referenced_num=0&reference_num=1