Search

Article

x

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Monte Carlo simulations of microstructure and texture evolution during annealing of a two-phase titanium alloy

Yang Liang Wei Cheng-Yang Lei Li-Ming Li Zhen-Xi Li Sai-Yi

Monte Carlo simulations of microstructure and texture evolution during annealing of a two-phase titanium alloy

Yang Liang, Wei Cheng-Yang, Lei Li-Ming, Li Zhen-Xi, Li Sai-Yi
PDF
Get Citation

(PLEASE TRANSLATE TO ENGLISH

BY GOOGLE TRANSLATE IF NEEDED.)

Metrics
  • Abstract views:  1189
  • PDF Downloads:  828
  • Cited By: 0
Publishing process
  • Received Date:  26 March 2013
  • Accepted Date:  30 May 2013
  • Published Online:  05 September 2013

Monte Carlo simulations of microstructure and texture evolution during annealing of a two-phase titanium alloy

  • 1. School of Materials Science and Engineering, Central South University, Changsha 410083, China;
  • 2. Guangdong Zhaoqing Supervision Testing Institute of Quality and Measuring, Zhaoqing 526060, China;
  • 3. AVIC Commercial Aircraft Engine Co. Ltd., Shanghai 200241, China;
  • 4. Beijing Institute of Aeronautical Materials, Beijing 100095, China;
  • 5. Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Changsha 410012, China
Fund Project:  Project supported by the National Basic Research Program of China (Grant No. 2007CB613803) and the National Natural Science Foundation of China (Grant No. 51271204).

Abstract: Nucleation and grain growth are important phenomena during static recrystallization of metallic materials and both processes have significant influences on the material properties. The Monte Carlo (MC) method has been widely used to simulate static recrystallization behavior during annealing of metallic materials. In this study, an MC model for static recrystallization of two-phase alloys is proposed by extending an existing MC model, through the introduction of the nucleation stage to account for the grain growth by both consuming deformed grains and competing with other recrystallized grains. The two-phase MC model is used to simulate the evolution of microstructure and texture during annealing of a TC11 (Ti-6.5Al-3.5Mo-1.5Zr-0.3Si) titanium alloy, accounting for initial grain morphology, phase compositions, crystallographic orientations, and relative values of strain stored energy determined by electron back-scattered diffraction. The results show that the model can reproduce satisfactorily the recrystallization and grain growth behavior in annealing. Compared with the β phase, the α phase depicts a lower recrystallization rate but a higher grain growth rate: the former difference can be mainly attributed to the lower strain stored energy in the α phase before annealing, whereas the latter suggests that the grain growth in the system is significantly influenced by the grain morphology, distribution of grains, and relative volume fractions of the two phases in the initial condition. Due to the influence of heterogeneous nucleation accounted for in the model, the simulated recrystallization rate deviates considerably from that described by the Johnson-Mehl-Avrami-Kolmogorov equation. The simulation also indicates that for both phases the textures strengthen with little changes in their basic features during annealing.

Reference (29)

Catalog

    /

    返回文章
    返回