Mathematical Simulation and Experimental Verification of Carburizing Quenching Process Based on Multi-Field Coupling
Source abstract
Abstract
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.
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Research context
OpenAlex topics: Microstructure and Mechanical Properties of Steels · Metallurgy and Material Forming · Metal Alloys Wear and Properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
Key Laboratory of Near Net Forming of Materials in Hebei Province, Hebei University of Science and Technology, Shijiazhuang 050018, China
Department of Material Science and Engineering, Saitama Institute of Technology, Fukaya 369-0293, Japan
Parts Development Department, Zhejiang Wanliyang Co., Ltd., Jinhua 321000, China
College of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
Funding
Key projects of strategic international scientific and technological innovation cooperation
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