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杨晓康,王快社,史佳敏,蔡军,王庆娟,刘莹莹.TC17钛合金高温变形行为研究[J].稀有金属材料与工程(英文),2018,47(9):2895~2900.[Yang Xiaokang,Wang Kuaishe,Shi Jiamin,CaiJun,Wang Qingjuan and Liu Yingying.Research on High Temperature Deformation Behaviour of TC17 Titanium Alloy[J].Rare Metal Materials and Engineering,2018,47(9):2895~2900.]
Research on High Temperature Deformation Behaviour of TC17 Titanium Alloy
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Received:March 01, 2018  Revised:March 29, 2018
DOI:
Key words: TC17 titanium alloy  high temperature deformation behavior  constitutive equation  processing map
Foundation item:国家自然科学基金项目(面上项目,重点项目,重大项目)
Author NameAffiliation
Yang Xiaokang,Wang Kuaishe,Shi Jiamin,CaiJun,Wang Qingjuan and Liu Yingying  
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Abstract:
      In order to investigate the hot deformation behavior of TC17 titanium alloy, isothermal compression tests on a Gleeble 3500D simulator were carried out in a temperature range of 973-1223 K, the strain rate range of 0.001-10s-1 and strain of 0.9. The results indicated that the flow stress was sensitive with deformation temperature and strain rate. Meanwhile, discontinuous yielding phenomenon was found at the strain rate of 10s-1 with temperature of 1123K, 1183K and 1223K. Based on multiple regression, a constitutive model was put forward to describe the role of the flow stress as the Zener-Holloman parameter. Thereafter, the processing map on the basis of dynamic materials model was established, and the validity of the developed processing map was verified by using the microstructure of compressed TC17 titanium alloy.