文献类型：期刊文献

英文题名：Enhanced surface strengthening of titanium treated by combined surface deep-rolling and oxygen boost diffusion technique

作者：Jia, Yun-Fei[1];Pan, Ren-Jing[1];Zhang, Peng-Yue[2];Sun, Zhong-Ti[3];Chen, Xiao-Ru[1];Zhang, Xian-Cheng[1];Wu, Xiao-Jun[3]

机构：[1]East China Univ Sci & Technol, Sch Mech & Power Engn, Key Lab Pressure Syst & Safety, MOE, Meilong Rd 130, Shanghai 200237, Peoples R China;[2]China Jiliang Univ, Collaborat Innovat Ctr Standardizat & Intellectua, Hangzhou 310018, Zhejiang, Peoples R China;[3]Univ Sci & Technol China, Sch Chem & Mat Sci, CAS Key Lab Mat Energy Convers, Hefei 230026, Anhui, Peoples R China

年份：2019

卷号：157

起止页码：256

外文期刊名：CORROSION SCIENCE

收录：;EI(收录号：20192407037718);WOS:【SCI-EXPANDED(收录号:WOS:000480374200023)】；

基金：The authors would like to acknowledge gratefully for the financial support through National Natural Science Foundations of China (51725503, 51605164), Shanghai Sailing Program (16YF1402300) and the 111 project. The author X.C. Zhang is also grateful for the support by Shanghai Technology Innovation Program of SHEITC (CXY-2015-001) and Young Program of Yangtze River Scholars.

语种：英文

外文关键词：Nanograin; Thermal oxidation; Oxygen boost diffusion; Diffusion mechanism; Titanium

摘要：Thermal oxidation and oxygen boost diffusion were respectively applied on the rolled and unrolled titanium to improve the mechanical properties of titanium. After deep-rolling process, the gradient plastic deformation layer was generated. The deep-rolling technique speeded up the thermal oxidation of titanium. Rolled titanium exhibits a better hardening effect than unrolled titanium by thermal oxidation or oxygen boost diffusion treatment. By means of SEM, XRD and first-principles calculations, the oxygen diffusion mechanisms of rolled and unrolled titanium at different stages were quantitatively analyzed. Finally, the optimized processing parameters of oxygen boost diffusion treatment for titanium were proposed.