铸造技术2017，Vol.38Issue(6)：1274-1277,4.DOI:10.16410/j.issn1000-8365.2017.06.005
膜致应力促氧化膜破裂行为研究
Study on Oxide Film Rupture Behavior Caused by Film-induced Stress
摘要
Abstract
Oxide film rupture theory has become one of the most popular models to quantitatively predict the stress corrosion cracking rate at crack tip of Ni-based alloys,and crack length has been one of the important parameters of crack growth rate.To understand the micro-mechanical state with different crack length at the tip of Nickel-based alloys without considering the external load,the stress-strain induced by oxide film in the base metal was simulated and discussed using a commercial finite element analysis code.The results show that the stress-strain state induced by oxide film is different because of crack length,and film-induced stress is one of the main factors that can't be ignored in the stress corrosion crack growth driving force.关键词
应力腐蚀/裂纹长度/膜致应力/氧化膜Key words
crack length/film-induced stress/oxide film/stress corrosion cracking分类
矿业与冶金引用本文复制引用
杨宏亮,薛河,杨帆..膜致应力促氧化膜破裂行为研究[J].铸造技术,2017,38(6):1274-1277,4.基金项目
国家自然科学基金资助项目(51475362,11502195) （51475362,11502195）
陕西省教育厅科研计划资助项目(16JK1493) （16JK1493）
