Geometry Analysis and Microhardness Prediction of Nickel-Based Laser Cladding Layer on the Surface of H13 Steel

Abstract

In order to improve the resistance to thermal fatigue and wear resistance of H13 hot-working tool steel, a nickel-based composite coating was prepared on its surface by laser cladding technology. The relationship was studied between the main processing parameters and the size of the cladding layer such as height and width. Based on the orthogonal polynomial regression method, the relationships were modeled mathematically between laser power, scanning speed, powder feeding voltage and microhardness. This model was proved to be able to predict the laser power and powder feeding voltage under 1100 Hv microhardness.

Comparing and analysing the characterisation of laser cladding of CrNiW and CrNiFeAlZr powders on H13 tool steel

“…Wang et al 25 prepared Stellite-6/WC metal matrix composite deposited on H13 die steel using laser cladding technique with cobalt-coated tungsten carbide (WC-12Co) particles and Stellite-6 powder. The literature survey shows that many experiments have been conducted on laser cladding of AISI H13 steel substrate using CPM 9V, 4 NiTi, 6 CrMoTaWZr, 7 TiC nanoparticles, 8 Ni-based alloy powders, 9 CoFeNiCrAlTi HEA, 11 stellite 6-Cr 3 C 2 -WS 2 self-lubricating composite, 19 Ti 3 AlC 2 -reinforced Co-based alloy, 20 NiCrAl-WC, 21 Fe-based coatings with varied WC, 23 Stellite-6/WC metal matrix composite, 25 CrNi coatings with different TiO 2, 26 CoCrFeNiBSi HEA, 27 NiCrBSi + Ni/MoS 2 powder, 28 CoCrFeNiTiNbB 1.25 HEA, 29 FeCoCrNiMnAl HEA, 30 WC/Co-Cr alloy, 31 WC/Ni, 32 Nickel-based composite, 33 Al 2 CoCrCuFeNi, 34 FeCoCrNiMnAl x, 35 Cr–Ni–Al 2 O 3 –TiO 2 composite, 36 FeMnCrNiCo + x(TiC) composite HEA, 37 and NiCrAl-SiC. 38 However, CrNiW and CrNiFeAlZr clad powders were not considered so far in laser cladding of H13 steel.…”