Deformation-induced interfacial-twin-boundary ω-phase in an Fe_(48)Mn_(37)Al_(15) body-centered cubic metastable alloy  

作　　者：Huabei Peng Xiao Yang Lixin Sun Liqiu Yong Jiazhen Yan Jinyong Zhang Bingnan Qian Yuhua Wen 

机构地区：[1]School of Mechanical Engineering,Sichuan University,Chengdu 610065,China [2]School of Mechanical Engineering,Hebei University of Technology,Tianjin 300401,China [3]State Key Laboratory of Materials Processing and Die and Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China [4]School of Materials and Physics,China University of Mining and Technology,Xuzhou 221116,China [5]State Key Laboratory of Solidification Processing,Northwestern Polytechnical University,Xi’an 710072,China [6]Innovation Center,NPU Chongqing,Chongqing 401135,China [7]Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen 518055,China

出　　处：《Journal of Materials Science & Technology》2023年第15期252-258,共7页材料科学技术（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51971152 and 51601216);the Postdoctoral Research Foundation of China(No.2020M682410);the Sichuan Science and Technology Program(No.2020YJ0258).

摘　　要：Omega(ω)phase has a trigonal or hexagonal crystal structure and was first discovered inβ-type Ti-Cr alloys[1].Since then,theω-phase has been widely reported in numerous group IV transition metal(Ti,Ta,Hf,and Zr)based alloys[2–9].The morphologies ofω-phase could be particle-like(athermalω-phase)[10],ellipsoidal or cuboidal after aging(isothermalω-phase)[11],and plate-like after deformation(stress-relatedω-phase)[12].Amongst,the stressrelatedω-phase is usually located at the twinning boundary,thus also called interfacial-twin-boundary-ω(ITB-ω)phase.The formation of the ITB-ωphase is considered to be related to the formation of{112}bcc<111>mechanical twin(i.e.,{112}bcc twin)in bodycentered cubic(BCC)metals and alloys[13].

关 键 词：alloys ALLOY DEFORMATION 

分 类 号：TG139.6[一般工业技术—材料科学与工程]