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Numerical Simulation of Temperature and Stress Fields of Ti-Alloy Thin-well Barrel during Quenching Process LI Yan-zeng1,WU Kun1,YAN Mu-fu1 (1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, China) 摘要:The mathematical models have been established to describe the temperature and stress profiles in Ti6Al4V cylinder during quenching. The residual stress......
brazing joints of SiC ceramics and Ti alloy by using Ag-Cu-Ti-(Ti+C) as bonding material LIN Guo-biao1, HUANG Ji-hua1, ZHANG Jian-gang1,LIU Hui-yuan1, MAO Jian-ying2, LI Hai-gang2 (1. School... (mass fraction) powder as vacuum non-pressure brazing material, sound brazed joints of SiC ceramics /Ti alloy were acquired at 920℃ for 30min. The joints were investigated by X-ray diffractrometry......
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结果,并考虑变形抗力的大小,确定出了较佳的变形热力参数范围为850~940℃和0.001~0.01 s-1,最佳的变形热力参数在900℃和0.001 s-1附近. 关键词:钛合金; Ti-6.5Al-3.5Mo-1.5Zr-0.3Si; 工艺优化; Murty失稳判据; 变形机制; Ti-alloy; Ti.6.5Al-3.5Mo-1.5Zr-0.3Si; process......
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and face number of pure iron were observed to be consistent with those of Monte Carlo simulated grains,phase-field simulated grains,Ti-alloy grains,and Ni-based super alloy grains.In this work,by finding......
of the billet increases while the temperature gradient in billet decreases. The results are helpful to the design and optimization of the process parameters in precision forging process of Ti-alloy blade...Effects of Process Parameters on the Temperature Field in Ti-6Al-4V Alloy Blade Precision Forging ProcessYuli LIU,He YANG, Tao GAO and Mei ZHAN College of Materials Science and Engineering......
temperatures ranging from 1 073 to 1 173 K under an applied stress of 100 MPa for 2 h was studied. The observation of the microstructure reveals that sound joints between the g-TiAl alloy and the Ti-alloy... with the increase of bonding temperature. The EDS chemical composition profiles indicate that there is a diffusion flux of Al atoms from g-TiAl alloy towards the Ti alloy and of Ti atoms in the opposite......
Ti-6.5Al-3.5Mo- 1.5Zr-0.3Si alloy as the testing material, the thermomechnical parameter windows of the unstable deformation zones for the Ti-alloy are integrated into a commercial finite element simulation... To simulate and predict the unstable deformation of the Ti alloy in hot forging process, the thermomechanical parameter windows of the unstable deformation zones must be first determined based on its......
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