工程科学学报2015，Vol.37Issue(11)：1456-1462,7.DOI:10.13374/j.issn2095-9389.2015.11.010
溶解氧和温度对O6Cr17Ni12Mo2Ti不锈钢在超临界水中应力腐蚀的影响
Effects of dissolved oxygen and temperature on the stress corrosion of O6Cr17Ni12Mo2Ti stainless steel in supercritical water
摘要
Abstract
The effects of dissolved oxygen (DO) and temperature on the stress corrosion cracking (SCC) of 06Cr17Ni12Mo2Ti stainless steel ( SS) in supercritical water environments were investigated by slow strain rate tensile tests ( SSRT) . It is found that the SCC susceptibility of the stainless steel is observed in 450℃ and 550℃ supercritical water environments containing different amounts of dissolved oxygen (0/200/2000μg·kg-1). The effect of dissolved oxygen on the SCC susceptibility is more remarkable with increas-ing amount of dissolved oxygen. However, the SCC susceptibility decreases with the increase of temperature. In 650℃ supercritical water environments containing different amounts of dissolved oxygen (0/200/2000μg·kg-1), ductile fracture can be found, but the SCC susceptibility is not observed. In these environments, the effect of DO is negligible.关键词
超临界水/奥氏体不锈钢/应力腐蚀开裂/慢应变速率试验/拉伸试验Key words
supercritical water/austenitic stainless steel/stress corrosion cracking/slow strain rate testing/tensile testing分类
矿业与冶金引用本文复制引用
陆辉,沈朝,张乐福,唐睿,张强..溶解氧和温度对O6Cr17Ni12Mo2Ti不锈钢在超临界水中应力腐蚀的影响[J].工程科学学报,2015,37(11):1456-1462,7.基金项目
国家重点基础研究发展计划资助项目(2007CB209800) （2007CB209800）
