%0 Journal Article
%T EFFECT OF IODINE ON STRESS CORROSION CRACKING OF N18 ZIRCONIUM ALLOY<br>碘对N18锆合金应力腐蚀开裂的影响
%A PENG Qian
%A ZHAO Wen-jin
%A LI Wei-jun
%A TANG Zheng-hua
%A CUI Xu-mei
%A HENG Xue-mei National Key LabFor Nuclear
%A Materials
%A Nuclear Power Institute of China
%A Chengdu
%A School of Materials Science
%A Engineering
%A Sichuan University
%A Chengdu
%A <br>彭倩
%A 赵文金
%A 李卫军
%A 唐正华
%A 崔旭梅
%A 衡雪梅
%J 腐蚀科学与防护技术
%D 2005
%I 
%X The effect of iodine partial pressure on the iodine-induced stress corrosion cracking of recrystallized N18 zirconium alloy was investigated.The characteristics of the SCC fractures have been examined by SEM.The results show that the susceptibility of N18 to I-induced SCC increases with the increasing iodine partial pressure,i.e.the critial stress intensity factor K ISCC and stress decrease,as well as critical time shortens with the increasing iodine partial pressure.The speedily propagation of stress corrosion cracks is influenced by iodine partial pressure.The higher the iodine partial pressure is,the lower the stress intensity factor needs to accelerate cracking.The partial pressure of iodine influence not only the formation of corrosion products,but also the mode of cracking.The effect of iodine partial pressure on the SCC of N18 zirconium alloy can be explained by diffusion mechanism and the reaction balance of Zr-I-O system.
%K N18 zirconium alloy
%K iodine partial pressure
%K stress corrosion cracking
%K fracture<br>N18锆合金
%K 碘分压
%K 应力腐蚀开裂
%K 断口
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=9F6E6EC8BA5BB62698F6640073DDD6E1&aid=850FEF576BC86EE7&yid=2DD7160C83D0ACED&vid=BCA2697F357F2001&iid=CA4FD0336C81A37A&sid=DB817633AA4F79B9&eid=340AC2BF8E7AB4FD&journal_id=1002-6495&journal_name=腐蚀科学与防护技术&referenced_num=1&reference_num=12