Texture of Pure Titanium Formed by Cold-Rolling and Its Influence on Mechanical and Fatigue Properties
This study systematically investigated the influence of cold-rolling on the crystallographic texture,mechanical properties,and fatigue properties of pure titanium and their anisotropy. Pure titanium was hot-rolled in plates and annealed for recrystallization. The plates were further coldrolled by reducing the thickness by 30％,50％,and 62％ in the same direction as the hot-rolling. The texture was investigated through EBSD analysis. The result showed that the annealed material possessed strong anisotropy of yield strength because of its sharp texture. Since the texture was eased by rotation of crystal grains and the formation of twins,the anisotropy of the yield strength was weakened by cold-rolling. The static strength increased by increasing the thickness reduction because resistance to plastic deformation was increased by workhardening and changes in microstructure.such as extension of crystal grains and the formation of twins. The anisotropy of fatigue strength showed the same tendency as static strength,and the fatigue strength was similarly improved by increasing the thickness reduction.
Pure titanium cold-rolling thickness reduction texture hardness mechanical properties fatigue properties anisotropy
Mamoru SHIMAMURA Tatsuro MORITA Takashi MAEDA Hideto SETO Satoshi MATSUMOTO
Department of Mechanical & System Engineering, Graduate School, Kyoto Institute of Technology, 606-8 Stainless Steel & Titanium Research & Development Department, Corporate Research & Development Labor Titanium Technical Support Section,Customer Engineering Department, Sumitomo Metals (Naoetsu) ,Ltd.
国际会议
The 12th World Conference Titanium(第十二届世界钛会 Ti-2011)
北京
英文
1025-1029
2011-06-19（万方平台首次上网日期，不代表论文的发表时间）