Microstructure and Texture Evolution of Ti65 Alloy during Thermomechanical Processing  

作　　者：Jian Zang Jianrong Liu Qingjiang Wang Haibing Tan Bohua Zhang Xiaolin Dong Zibo Zhao 

机构地区：[1]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang,110016,China [2]Institute of Metal Research,Chinese Academy of Sciences,Shenyang,110016,China [3]Si Chuan Gas Turbine Establishment,Aero Engine Corporation of China,Chengdu,610500,China

出　　处：《Acta Metallurgica Sinica(English Letters)》2025年第1期107-120,共14页金属学报(英文版)

基　　金：supported by the National Science and Technology Major Project(No.J2019-VI-0012-0126).

摘　　要：The initial microstructure of titanium alloy in theα+βphase region is pivotal in dictating the performance of the final products after thermomechanical processing.Microstructures and textures of three rods,each prepared through distinct pretreatments,were systematically analyzed.Morphological analysis reveals that while both thickαplatelets and coarse priorβgrains impede the spheroidization of lamellar structures,the influence of the former is more pronounced.Variations inαplatelet thickness priorβgrain size exhibit limited impact on the macro-texture type after deformation and annealing.The proportion of low-angle interfaces between the c-axis of the primaryαphase and the<110>direction of the priorβgrains was elevated in rods with thicker platelets compared to thinner ones.

关 键 词：Ti65 alloy Thermomechanical processing αplatelet thickness Priorβgrain size Microstructure evolution TEXTURE 

分 类 号：TG146.22[一般工业技术—材料科学与工程]