Abstract
The critical temperature condition for softening behavior of AISI P21 steel during laser-assisted heat treatment is suggested by three-dimensional transient simulation with a finite different method. Temperature history of the cross-sectional region during laser-assisted heat treatment at 1273 K was simulated. The critical temperature condition for formation of the softening zone was assumed to range from 900 to 1008 K, based on this peak temperature history. Formation of the softening zone was simulated based on the assumed critical temperature condition. Morphology and area of simulated softening zone was compared with the experimentally obtained results, and these were well matched. In this regard, critical temperature condition for formation of the softening zone during laser-assisted heat treatment was identified to range from 900 to 1008 K.
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Acknowledgements
This work was supported by the Technology Innovation Program (or Industrial Strategic technology development program, No. 10076430) funded By the Ministry of Trade, industry & Energy (MI, Korea) and Korea Institute of Machinery and Materials (NK217C).
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Sim, A., Chun, EJ. & Cho, DW. Numerical Simulation of Surface Softening Behavior for Laser Heat Treated Cu-Bearing Medium Carbon Steel. Met. Mater. Int. 26, 1207–1217 (2020). https://doi.org/10.1007/s12540-019-00577-9
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DOI: https://doi.org/10.1007/s12540-019-00577-9