Version 1
: Received: 28 April 2021 / Approved: 6 May 2021 / Online: 6 May 2021 (16:29:46 CEST)
How to cite:
yan, L.; yan, B. Numerical Simulation and Experimental Study on Selective la-Ser Melting of 18Ni-300 Maraging Steel. Preprints.org2021, 2021050114. https://doi.org/10.20944/preprints202105.0114.v1.
yan, L.; yan, B. Numerical Simulation and Experimental Study on Selective la-Ser Melting of 18Ni-300 Maraging Steel. Preprints.org 2021, 2021050114. https://doi.org/10.20944/preprints202105.0114.v1.
Cite as:
yan, L.; yan, B. Numerical Simulation and Experimental Study on Selective la-Ser Melting of 18Ni-300 Maraging Steel. Preprints.org2021, 2021050114. https://doi.org/10.20944/preprints202105.0114.v1.
yan, L.; yan, B. Numerical Simulation and Experimental Study on Selective la-Ser Melting of 18Ni-300 Maraging Steel. Preprints.org 2021, 2021050114. https://doi.org/10.20944/preprints202105.0114.v1.
Abstract
The energy transfer process of laser selective melting is very complex. To study the effect of la-ser selective melting on the microstructure and properties of 18Ni-300 martensitic steel, ABAQUS was used to simulate the temperature of laser cladding 18Ni-300 martensitic steel at different time points and different laser power. The results show that the cross-section shape of the molten pool changes from round to oval With the increase of laser power, the higher the peak value of temperature time curve, the greater the temperature gradient; and the laser clad-ding experiment of 18Ni-300 martensitic steel was carried out, and the microstructure and me-chanical properties of the samples under different laser power were analyzed. The results show that with the increase of laser power, the grain size of the cladding layer becomes smaller and the microstructure becomes more compact; the hardness of the side surface of the sample is higher than that of the upper surface, and the tensile strength and elongation show a trend of first increasing and then decreasing.
Computer Science and Mathematics, Algebra and Number Theory
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
