Mathematical Simulation and Experimental Verification of Carburizing Quenching Process Based on Multi-Field Coupling

被引:10
作者
Wang, Jiangang [1 ,2 ]
Yang, Shuai [1 ]
Li, Jianhui [1 ,2 ]
Ju, Dongying [1 ,3 ]
Li, Xusheng [3 ]
He, Fangbo [4 ]
Li, Hui [4 ]
Chen, Yong [5 ]
机构
[1] Hebei Univ Sci & Technol, Coll Mat Sci & Engn, Shijiazhuang 050018, Hebei, Peoples R China
[2] Hebei Univ Sci & Technol, Key Lab Near Net Forming Mat Hebei Prov, Shijiazhuang 050018, Hebei, Peoples R China
[3] Saitama Inst Technol, Dept Mat Sci & Engn, Fukaya 3690293, Japan
[4] Zhejiang Wanliyang Co Ltd, Parts Dev Dept, Jinhua 321000, Zhejiang, Peoples R China
[5] Hebei Univ Technol, Coll Mech Engn, Tianjin 300130, Peoples R China
基金
国家重点研发计划;
关键词
carburizing and quenching; the finite element method; multi-field coupling; transmission gear; deformation; FINITE-ELEMENT-ANALYSIS; HEAT-TREATMENT; RETAINED AUSTENITE; MECHANICAL-PROPERTIES; CARBON CONTENT; STEEL; GEOMETRY; WEAR; GEAR;
D O I
10.3390/coatings11091132
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Based on the multi-field coupling effect of temperature, diffusion, and phase change, the finite element model of carburizing and quenching was established. The 20CrMnTiH steel helical gear as the research object, prediction accuracy of carburizing, and quenching model of complex helical gear was studied. The material properties database of experimental steel was established by JMatPro, and the material thermophysical parameters needed in the calculation process were obtained. The carburizing and quenching process of transmission helical gear was numerically simulated by thermodynamic three-dimensional coupling analysis method combined with actual heat treatment process. The microstructure morphology, macro hardness, and deformation were characterized. The experimental results show that the microstructure of the hardened surface layer was acicular martensite and a small amount of residual austenite. The highest hardness appears at the surface layer of 778.8 HV, the effective hardened layer depth was 0.9 mm, and the maximum deformation of the gear was 0.055 mm. By comparing the experimental measurement results with the simulation results, they were in good agreement, which verifies the accuracy of the finite element model. This indicates that the model has good prediction ability in carburizing and quenching process.
引用
收藏
页数:16
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