Prediction of Carbide Precipitation Using A Combined Partial Equilibrium - Para-Equilibrium - Lever Rule Approximation in Automobile Gear Materials

Joint 5th International Conference on Advances in Solidification Processes;5th International Symposium on Cutting Edge of Computer Simulation of Solidification, Casting and Refining

土木建筑工程;计算机科学

Zhang, Hongwei^1^2 ; Nakajima, Keiji^3 ; Su, Mengmeng^1^2 ; Gao, Shaoshao^1^2 ; Lei, Hong^1^2 ; Wang, Qiang^1^2 ; He, Jicheng^1^2

Northeastern University, Key Laboratory of Electromagnetic Processing of Materials, Shenyang

110004, China^1

Northeastern University, School of Metallurgy, Shenyang

110004, China^2

KTH Royal Institute of Technology, Department of Materials Science and Engineering, Stockholm

SE-100 44, Sweden^3

关键词: Carbide precipitation;    Carburization process;    Gear materials;    Partial equilibrium;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/529/1/012009/pdf
DOI  :  10.1088/1757-899X/529/1/012009

来源: IOP

【 摘 要 】

The carbide precipitation nature of an automobile gear material, i.e. Fe-C-Mn-Si-Cr-Mo alloy, during carburization and element addition process are investigated through PE+PA+LR prediction. Results show that, carburization process greatly increases the amount of cementite as well as the hardness index at the surface part. Besides, the addition of Ti and V helps to formation of TiC and (V, Mo)C carbides but suppress the precipitation of cementite, which contributes equivalent hardness at surface and lighter weight to the alloy.