Effects of Heat Treatment on Microstructure, Texture and Tensile Properties of Ti65 Alloy

被引：0
|
作者：
Wu X. [1 ,2 ]
Chen Z. [1 ,2 ]
Cheng C. [1 ,2 ]
Liu J. [1 ,2 ]
Xu D. [1 ,2 ]
Wang Q. [1 ,2 ]
机构：
[1] School of Materials Science and Engineering, University of Science and Technology of China, Shenyang
[2] Institute of Metal Research, Chinese Academy of Sciences, Shenyang
来源：
Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research | 2019年 / 33卷 / 10期
关键词：
Heat treatment; Matallic materials; Microstructure; Tensile properties; Texture; Ti-alloy; Ti65;
D O I：
10.11901/1005.3093.2019.110
中图分类号：
学科分类号：
摘要：
Microstructure- and texture-evolution of Ti65 Ti-alloy plate were investigated, and the tensile deformation mechanism of the plate after heat treatment with different texture were discussed. The results show that heat treatment has a significant influence on the evolution of microstructure and texture of the plate. Equiaxed-, duplex- and lamellar-microstructure would be obtained after different heat treatment. The plate with equiaxed microstructure presented a B/T texture, while the c-axis of the α -phase and the rolling direction (RD) met at a 70°~90° angle; similar texture could be found in duplex- and lamellar- microstructure, meanwhile a new texture that the c-axis of the α -phase paralleled to RD could be found in the alloy. Room temperature tensile strength of plates with duplex microstructure could be enhanced by the dislocations and sub-structures, while had little effect on tensile properties at high temperature. Texture was found to be the main factor affecting the anisotropy of tensile properties of Ti65 plates, the plate would possess good tensile properties without obvious anisotropy in tensile strength after heat treatment of 980℃/1 h/AC+700℃/4 h/AC. © All right reserved.
引用
收藏
页码：785 / 793
页数：8
相关论文
共 29 条
  • [21] Nieh T.G., Wadsworth J., Hall-petch relation in nanocrystalline solids, Scr. Metall. Mater., 25, 4, (1991)
  • [22] Mora L., Quesne C., Penelle R., Relationships among thermomechanical treatments, microstructure, and tensile properties of a near beta-titanium alloy: β-CEZ: Part II. Relationships between Thermomechanical Treatments and Tensile properties, J. Mater. Res., 11, 1, (2011)
  • [23] Xin S.W., Zhao Y.Q., Discussion About the Heat Treatment and Precipitated Phases of Titanium Alloy, Heat Treat. Met-UK, 31, 9, (2006)
  • [24] Zhao L., Study on silicide of Ti-60A high-temperature titanium alloy and control of β grain size, (2008)
  • [25] Yapici G.G., Karaman I., Maier H.J., Mechanical flow anisotropy in severely deformed pure titanium, Mat. Sci. Eng. A, 434, 1, (2006)
  • [26] Nemat-Nasser S., Guo W.G., Cheng J.Y., Mechanical properties and deformation mechanisms of a commercially pure titanium, Acta Mater., 47, 13, (1999)
  • [27] Kalinyuk A.N., Trigub N.P., Zamkov V.N., Et al., Microstructure, texture, and mechanical properties of electron-beam melted Ti-6Al-4V, Mat. Sci. Eng. A, 346, 1, (2003)
  • [28] Di W.U., Wang G.Q., Wang J.D., Et al., Investigation on cold rolling for titanium sheet under tensional effect, Journal of Northeastern University, 29, 10, (2008)
  • [29] Biavant K.L., Pommier S., Prioul C., Local texture and fatigue crack initiation in a Ti-6Al-4V titanium alloy, Fatigue Fract. Eng. M, 25, 6, (2010)
123