强磁场下钢中析出相演变规律研究进展  

Research Progress on Evolution of Precipitate Phases in Steel under High Magnetic Field

作　　者：张东[1,2] 侯廷平[1,2] 郑一航 冯勇[1,2] 吴开明[1,2] ZHANG Dong;HOU Tingping;ZHENG Yihang;FENG Yong;WU Kaiming(State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,China;Hubei Collaborative Innovation Center for Advanced Steels,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北武汉430081 [2]武汉科技大学高性能钢铁材料及其应用省部共建协同创新中心,湖北武汉430081

出　　处：《铸造技术》2022年第8期615-624,I0030,共11页Foundry Technology

基　　金：国家自然科学基金(12174296,U1532268,U20A20179);湖北省重点研发计划项目(2021BAA057);2019年度湖北省高等学校优秀中青年科技创新团队(T201903);111计划项目(D18018)。

摘　　要：碳化物是钢中主要的强化析出相,而析出强化可以有效改善钢的强韧性。强磁场作为调控钢中微观组织(包括碳化物)的重要手段已普遍应用到材料领域。目前,关于强磁场下钢中复杂碳化物的结构、磁性及稳定性演变机制取得了一些成果。本文综述了析出相的演变规律,重点介绍了常规条件以及强磁场下碳化物的结构、磁性与稳定性的演变规律;从动力学和热力学角度分析了磁场诱导碳化物析出行为的演变规律,探讨了强磁场作用下碳化物对材料力学性能的影响。最后,针对强磁场调控相析出过程中存在的问题,展望了未来的发展方向。Carbide is the main precipitated phase in steel,and precipitated strengthening can effectively improve the strength and toughness of steel.High magnetic field has been widely used in the field of materials as an important means to regulate the microstructure(including carbides)in steel.At present,some achievements have been made on the evolution mechanism of structure,magnetism and stability of complex carbides in steel under high magnetic field.In this paper,the evolution of precipitates is reviewed,with emphasis on the evolution of structure,magnetism and stability of carbides under conventional conditions and high magnetic field.The evolution of carbide precipitation induced by magnetic field was analyzed from the perspectives of dynamics and thermodynamics,and the effect of carbide on the mechanical properties of materials under strong magnetic field is discussed.Finally,the problems in the process of phase precipitation controlled by high magnetic field are discussed and the future development direction is prospected.

关 键 词：钢 强磁场 固态相变 析出相 

分 类 号：TG141[一般工业技术—材料科学与工程] TG111.5[金属学及工艺—金属材料]