Calculating the stress of multi-track formations in induction-assisted laser cladding

Residual stress and cracking behaviors of Cr13Ni5Si2 based composite coatings prepared by laser-induction hybrid cladding

“…On the other hand, since the composite coatings and the substrate are with good plastic at elevated temperature, low cooling rate means the dwell time of the coating in the high temperature increased, which can benefit thermal plastic flow and stress relaxation of the coatings/substrate greatly. A similar statement has been reported by Brückner et al [20,21]. The stress evolution in the coatings will move along with curve II in Fig.…”

“…It is evident that improving the induction preheating temperature is an effective way to reduce the residual stress in the composite coatings. Simulations by Brückner et al show similar results [20,21]. On the contrary, when the induction preheating temperature is lower than 650°C (e.g.…”

“…As the clad materials are given, preheating temperature T 0 of the substrate and crystallization temperature T m of the laser molten pool are key factors that determine the residual stress in the composite coatings. Brückner et al have been given similar statement about the residual stress inside the coating by induction assisted laser cladding [20].…”

“…Brückner et al have simulated residual stress in the LIHC coating by FEM. Result indicates that, residual stress in the coating was reduced remarkably [20][21][22]. In our previous works, crack-free WC/Ni-based composite coatings have been prepared on a low carbon steel substrate successfully [23,24].…”

Influences of parameters on microstructures and mechanical properties of Cr13Ni5Si2 based composite coating by laser-induction hybrid cladding

“…Meanwhile, cracks in the coating were reduced remarkably [6]. F. Brueckner et al investigated the residual stress in the coatings by induction assisted laser cladding, and results indicate that the preheating and postheating of the induction can reduce the residual stress in the coatings effectively [7,8]. In our previous works, WC reinforced Ni-based composite coatings was prepared by LIHC and the cracks were absent [9][10][11].…”