Qunli Zhang, Jian Lin, Zhijun Chen, Zehao Tang, Hua Huang, Yuan’an Gao, Jianhua Yao. Phase Transformation Process of Electromagnetic Induction Assisted Laser Quenching Based on MSC. Marc Software[J]. Chinese Journal of Lasers, 2021, 48(11): 1103002
- Chinese Journal of Lasers
- Vol. 48, Issue 11, 1103002 (2021)
Fig. 1. Thermophysical parameters of 42CrMo steel. (a) Specific heat capacity; (b) thermal conductivity; (c) resistivity; (d) relative permeability
Fig. 2. Schematic diagram of hybrid quenching for 42CrMo steel
Fig. 3. TTT diagram of 42CrMo steel
Fig. 4. CCT diagram of 42CrMo steel[27]
Fig. 5. Additivity rule
Fig. 6. Heat transfer coefficient of 42CrMo steel. (a) Coolant; (b) air
Fig. 7. Location of feature points
Fig. 8. Temperature history curves of characteristic points. (a) Point M; (b) point N
Fig. 9. Cloud charts of martensite. (a) Single laser quenching; (b) hybrid quenching
Fig. 10. Cross-sectional hardness curves of hardened layer by quenching. (a) Depth direction; (b) horizontal direction
Fig. 11. Cloud charts of temperature field in hybrid quenching process. (a) 3D section view; (b) Y-Z plane
Fig. 12. Temperature history curves of characteristic points for hybrid quenching
Fig. 13. Temperature history curve of point A under different quenching methods
Fig. 14. Microstructure distribution by hybrid quenching at different time
Fig. 15. Cloud diagram of martensite distribution after hybrid quenching
Fig. 16. Cross-sectional morphology of hardened layer by quenching. (a) Single laser quenching; (b) hybrid quenching
Fig. 17. Calculation of martensite proportion
Fig. 18. Microstructure of different positions after hybrid quenching. (a) Hardened layer; (b) heat affected zone; (c) base metal
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Table 1. Chemical composition of 42CrMo steel (mass fraction) unit: %
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Table 2. Latent heat of austenite phase transformation of 42CrMo steel
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Table 3. Quenching processing parameters
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