文献类型：期刊文献

英文题名：Deformation Behavior, a Flow Stress Model Considering the Contribution of Strain and Processing Maps in the Isothermal Compression of a Near-alpha Ti-3.3Al-1.5Zr-1.2Mo-0.6Ni Titanium Alloy

作者：Yu, Weixin[1];Cao, Junhui[1];Hou, Shusen[1];Wang, Guanglong[1];Li, Yue[1];Lang, Shaoting[1]

第一作者：Yu, Weixin

通讯作者：Yu, WX[1]

机构：[1]Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China

第一机构：新乡学院机电工程学院

通讯机构：[1]corresponding author), Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China.|[1107111]新乡学院机电工程学院;[11071]新乡学院;

年份：2022

卷号：15

期号：9

外文期刊名：MATERIALS

收录：;EI(收录号：20222112129764);Scopus(收录号：2-s2.0-85130121612);WOS:【SCI-EXPANDED(收录号:WOS:000794659800001)】；

基金：This research was funded by the Key Science and Technology Research Project of Henan Province of China (No. 222102230023), and the Key Scientific Research Projects of Colleges and Universities in Henan Province (No. 22A430035).

语种：英文

外文关键词：titanium alloy; compression tests; deformation behavior; model; processing map

摘要：In the present study, isothermal compression tests are conducted for a near-alpha Ti-3.3Al-1.5Zr-1.2Mo-0.6Ni titanium alloy at deformation temperatures ranging from 1073 K to 1293 K and strain rates ranging from 0.01 s(-1) to 10 s(-1) on a Gleeble-3500 thermomechanical compressor. The results show that, in the initial stage of the compression, the flow stress rapidly increases to a peak value because of elastic deformation, and then the alloy enters the plastic deformation stage and the flow stress slowly decreases with the increase in strain and tends to gradually stabilize. In the plastic deformation stage, the flow stress significantly decreases with the increase in the deformation temperature and the decrease in strain rate. A flow stress model considering the contribution of the strain is established, and the relative error between the calculated and the experimental values is 3.72%. The flow stress model has higher precision and can efficiently predict the flow behavior in the isothermal compression of the alloy. Furthermore, the processing map of the Ti-3.3Al-1.5Zr-1.2Mo-0.6Ni alloy is drawn. Based on the processing map, the influence of process parameters on power dissipation efficiency and stability parameters is analyzed, and the optimized hot working process parameters are pointed out.