High-temperature deformation behaviors of Ti-2Al-9.2Mo-2Fe alloy with boron

作     者：Rong Chen Song-Xiao Hui Wen-Jun Ye Yang Yu Xu-Jun Mi Dong-Geun Lee Yong-Tai Lee Rong Chen;Song-Xiao Hui;Wen-Jun Ye;Yang Yu;Xu-Jun Mi;Dong-Geun Lee;Yong-Tai Lee

作者机构：State Key Laboratory for Nonferrous Metal and ProcessingGeneral Research Institute for Nonferrous MetalsBeijing100088China Department of Materials Metallurgical EngineeringSunchon National UniversitySunchon57922Korea Department of Nano New MaterialsKyungnam UniversityChangwon51767Korea 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2023年第42卷第5期

页      面：1695-1705页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：financially supported by the National Natural Science Foundation of China(No.51571036) the International S&T Cooperation Program of China(No.2015DFR50930) 

主　　题：Newβtitanium alloy Boron addition Hot deformation Particle-stimulated nucleation Dynamic recrystallization 

摘      要：Hot deformation behaviors of Ti-2Al-9.2Mo-2Fe alloy with boron were investigated in a hot compression test at temperatures ranging from 850 to 1000℃and strain rates ranging from 0.01 to 10.00 s^(-1).With strain rate decreasing and deformation temperature increasing,dynamic recrystallization(DRX)was promoted in both *** nucleation mechanism of DRX involved grain boundary bulging and subgrain *** case of deformation at low temperatures and high strain rates,the boronfree alloy only showed dynamic recovery(DRV)***,due to the particle-stimulated nucleation mechanism of recrystallization by TiB particles,the boron-containing alloy shows DRX at that *** DRX grain nuclei are formed by lattice rotation and subgrain growth from deformation zone in the initial grains,which are close to those of TiB ***,the flow stress of the boron-containing alloy is lower than that of the boron-free alloy due to the grain refinement during hot deformation process.