New Heat Treatment Technology for Grain Refining of Structural Steel

作     者：Lü Bo ZHANG Fu-cheng CAO Guo-hua ZHANG Ji-ming 

作者机构：Yanshan University Qinhuangdao 066004 China Key Laboratory of Metastable MaterialsScience and Technology Qinhuangdao 066004 China） 

出 版 物：《Journal of Iron and Steel Research(International)》 (钢铁研究学报（英文版）)

年 卷 期：2005年第12卷第6期

页      面：49-53页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 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] 080201[工学-机械制造及其自动化] 

基　　金：ItemSponsoredbyNationalNaturalScienceFoundationofChina(50171057) ProvincialNaturalScienceFoundationofHebeiProvinceofChina(501193) PersonnelDepartmentofHebeiProvinceofChina 

主　　题：electrical contact heating medium carbon alloy steel ultrafine grain 42CrMoVNb 

摘      要：The application of electrical contact heating （ECH） in austenitic grain refining of ultra-pure 42CrMoVNb steel was introduced. The ECH equipment was designed to reach uniform heating of uniform heat transfer in the sample. The 42CrMoVNb steel treated possesses uniform microstructure with an average austenite grain size of 1.4 μm, higher strength （1 538 MPa） and impact toughness （81J/cm^2）.