Microstructure change in Fe-based metallic glass and nanocrystalline alloy induced by liquid nitrogen treatment

作     者：M.C.Ri D.W.Ding Y.H.Sun W.H.Wang M.C.Ri;D.W.Ding;Y.H.Sun;W.H.Wang

作者机构：Institute of PhysicsChinese Academy of SciencesBeijing100190China Songshan Lake Materials LaboratoryDongguan523808China 

出 版 物：《Journal of Materials Science & Technology》 (材料科学技术（英文版）)

年 卷 期：2021年第69卷第10期

页      面：1-6页

核心收录：

学科分类：07[理学] 0817[工学-化学工程与技术] 0806[工学-冶金工程] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0802[工学-机械工程] 0801[工学-力学（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(No.51871234) the National Key Research and Development Plan(No.2016YFB0300500) the Open Fund of Key Laboratory of Materials Preparation and Protection for Harsh Environment(Nanjing University of Aeronautics and Astronautics),Ministry of Industry and Information Technology(No.XCA19013-04) the Beijing Municipal Science&Technology Commission(No.Z191100007219006) the Key Research Program of Frontier Sciences,CAS(No.QYZDY-SSW-JSC017) 

主　　题：Metallic glasses Cryogenic thermal treatment Soft magnetic materials Rejuvenation Stored energy Domain wall 

摘      要：The effects of acyclic liquid nitrogen(LN)treatment in a temperature range of-196℃to 50℃on the thermal and magnetic stability of Fe78Si9B13 and Fe73.5Si13.5B9Nb3Cu1 glassy ribbons have been *** intrinsic heterogeneities of the metallic glasses can be activated through cryogenic thermal cycling,making irreversible structural changes after the treatment and inducing rejuvenation to the *** microstructural changes of both Fe-based metallic glass(MG)and nanocrystalline alloy induced by LN treatment were *** experimental results show that the LN treatment could effectively rejuvenate the Fe-Si-B MGs and change their thermomechanical and magnetic *** on the partially-crystallinity and well-known magnetic constants,the increase of the energy at the order of 10m J/g and magnetic domain wall movement and rotation at the order of 5-6μm and 0.5°-0.8°are found for FINEMET-type amorphous alloy after LN *** is also found that LN treatment can contribute a little stored energy to the magnetic domain wall movement and magnetic domain rotation.