A phase-field model for simulating the growth ofαsideplates with branching in titanium alloys  

作　　者：Jinhu Zhang Min Qi Haisheng Xu Hao Wang Yingjie Ma Dongsheng Xu Rui Yang 

机构地区：[1]Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [2]State Key Laboratory of Powder Metallurgy,Central South University,Changsha 410083,China [3]Shi-changxu Innovation Center for Advanced Materials,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China [4]School of Materials Science and Engineering,University of Science and Technology of China,Shenyang 110016,China [5]University of Shanghai for Science and Technology,Shanghai 200093,China

出　　处：《Journal of Materials Science & Technology》2022年第28期154-158,共5页材料科学技术（英文版）

基　　金：the Project supported by State Key Laboratory of Powder Metallurgy,Central South University,Changsha,China;the Natural Science Foundation of Liaoning(No.2021-MS-010);the Special Project of Chinese Academy of Sciences(No.CASWX2021PY-0103);the National Key Research and Development Program of China(No.2016YFB0701304)。

摘　　要：In recent years,titanium and titanium alloys are widely used in the fields of aerospace,oceans,etc.due to their high strength to weight ratio,good toughness and excellent corrosion resistance[1].Various microstructures and mechanical properties can be ob-tained simply by varying the thermomechanical processing or heat treatment.As an example,the Widmanstätten structure may pos-sess good tensile strength,fracture toughness,fatigue properties and high resistance to crack growth[2].It is formed when tita-nium alloys are cooled from theβphase region.During the cooling process,αGB(grain boundaryα)may first nucleates at the priorβgrain boundary,and then theαW(Widmanstättenα)grows fromαGB and forms intragranularαsideplates colony[3].The compli-cated evolution process is difficult to characterize experimentally,since the microstructures observed experimentally are mostly ul-timate results,but not a dynamic evolution process.

关 键 词：ALLOYS TOUGHNESS RESISTANCE 

分 类 号：TG146.23[一般工业技术—材料科学与工程]