Predictions and Experiments on the Distortion of the 20Cr2Ni4A C-ring during Carburizing and Quenching Process |
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| Authors: | Yongming Yan Yanjun Xue Wenchao Yu Ke Liu Maoqiu Wang Xinming Wang Liuqing Ni |
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| Affiliation: | 1.Central Iron & Steel Research Institute Company Limited, Beijing 100081, China; (Y.X.); (W.Y.); (M.W.);2.Jianglu Machinery and Electronics Group Co., Ltd., Xiangtan 411100, China;3.School of Material Science and Engineering, Xiangtan University, Xiangtan 411105, China; (X.W.); (L.N.) |
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| Abstract: | This paper focuses on the effect of gear steel on distortion due to phase transformation in carburizing and quenching. The carburizing and quenching process of C-rings under suspension was studied by using the finite element method based on the thermo-mechanical theory, considering phase transformation. The phase transformation kinetics parameters, depending on different carbon contents, were measured by Gleeble-3500. The distortion behavior of the carburized C-ring during the cooling stage was analyzed, as well as the carbon concentration distribution and martensite volume fractions. The accuracy of the simulation was also verified by comparing the experimental data with the simulated result of the distortion and microstructure. A reliable basis is provided for predicting the distortion mechanism of gear steels in carburizing and quenching. |
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| Keywords: | martensite transformation carburizing and quenching process simulation distortion |
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