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temperature. Because coefficient of linear thermal expansion of the die is larger than that of the titanium alloy at the same temperature, the workpiece can fit the die fully and have high dimensional accuracy at high temperature. Once the thermal expansion force of the die goes beyond the yield limit of the titanium alloy at the corresponding temperature, the expected bulging forming can be obtained due......
Influence of Sc on high temperature strengthening behavior of Ti-6Al-4V alloy LIU Hui-qun(刘会群)1, YI Dan-qing(易丹青)1, WANG Wei-qi(王韦琪)2, WANG Li-ping(王立平)2, LIAN Cai-hao(廉才浩)1 1. School... the interaction between dislocation and precipitated particles inside the twinning lamellar. Key words: Ti-6Al-4V alloy; scandium; high temperature deformation; strengthening ......
Effect of high density electropulsing treatment on formability of TC4 titanium alloy sheet SONG Hui(宋 辉), WANG Zhong-jin(王忠金), GAO Tie-jun(高铁军) School of Materials Science and Engineering...; Abstract: An annealed TC4 titanium alloy sheet was treated by high density electropulsing (Jmax=(5.09-5.26)×103A/mm2, tp=110......
remelting (VAR) process; titanium alloy ingot; macrostructure; temperature field; heat transfer 1 Introduction Due to its high specific strength, low density, excellent corrosion resistance... Numerical simulation of temperature distribution and heat transfer during solidification of titanium alloy ingots in vacuum arc remelting process YANG Zhi-jun(杨治军), ZHAO Xiao-hua(赵小花), KOU Hong......
and other fields because of their advantages in lower density, corrosion resistance, and fatigue resistance etc. As titanium alloy is higher friction coefficients, weak wear resistance, bad high temperature oxidation resistance and lower biocompatibility, its applications are restricted. Using laser surface modification techniques can significantly improve the surface properties of titanium alloy......
High temperature deformation behavior and mechanism of spray deposited Al-Fe-V-Si alloy XIAO Yu-de(肖于德), WANG Wei(王 伟), LI Wen-xian(黎文献) School of Materials Science and Engineering, Central...; Abstract: Al-8.5Fe-1.3V-1.7Si alloy was prepared by spray deposition and hot extrusion. The high temperature plastic deformation......
Influence of interstitial content on mechanical properties of new type of near α titanium alloy at cryogenic temperature LIU Wei(刘伟), DU Yu(杜宇), YANG Guan-jun(杨冠军) Northwest Institute...> Abstract: The influence of interstitial content on mechanical properties of a new type of near α titanium alloy (Ti-Zr-Mo-Nb-Sn) at cryogenic temperature was studied......
)Abstract:A new cup-drawing process of BT20 titanium alloy was studied. Tensile tests were carried out at room temperature, and then cup-drawing experiments were carried out with conical female die at high temperatures. The results show that the plasticity of BT20 titanium alloy is bad, σs/σb is big, n is small, so it is not suitable for BT20 titanium alloy which draws at room temperature, even......
> 1 Introduction TC16 titanium is a new type titanium alloy developed firstly by the Russia Institute of Aeronautical Materials. This high-strength titanium alloy has good mechanical... to determine the coefficients in J-C model easily and to avoid the estimation of adiabatic temperature rising. 2 Experimental The specimen material used in the present study was TC16 titanium alloy......
) in titanium alloy TC11 at high temperature and the influence of oxygen solution layer on performances of substrate were characterized with the help of apparatus, such as TGA,SEM/EDAX, XRD, EPMA, Micro-hardness.... Titanium alloys with oxygen solution layer exhibited improved corrosion resistance both in 3.5 % NaCl and in 5 % HCl solution. Oxidation resistance of TC11 with oxygen solution layer at high temperature......
