Investigation into Micro-Hardness and Wear Resistance of 316L/SiC Composite Coating in Laser Cladding

Abstract

In order to improve the performance of the cladding layer, this study used the Taguchi orthogonal design to investigate the influence of laser power, scanning speed, gas flow, and SiC powder ratio on the micro-hardness and wear volume of the cladding layer. The results indicate that the SiC powder ratio was the major factor that had the main impact on the micro-hardness and wear volume of the cladding layer. The contribution of SiC powder ratio on the micro-hardness and wear volume are 92.08% and 79.39%, respectively. Through signal to noise ratio conversion and combining grey relational analysis, the multiple objectives optimization was attained. With the target of maximizing the micro-hardness and minimizing the wear volume simultaneously, grey relational analysis was applied to obtain the optimal processing parameters set and predict the corresponding grey relational grade. The error rate was 5.3% between the prediction and experimental validation. This study provides the guidance for optimizing multiple goals at the same time using grey relational analysis about the coating properties deposited by laser cladding in actual industrial applications. It provided theoretical basis for the processing parameters optimization with targeting the micro-hardness and wear resistance.

Parameter Optimization of Laser Cladding for Stelcar Powder Coatings on AZ61 Magnesium Alloy

“…Each of these variables was examined at four distinct levels. A four-factor, four-level orthogonal array design was employed to systematically explore these factors and their interactions [23][24][25]. This design approach, detailed in Table 1, allowed for an e cient experimental setup that minimized the number of trials while maximizing the information obtained.…”

Multi-Scale Structure and Directional Hydrophobicity of Titanium Alloy Surface Using Electrical Discharge

“…In order to better process it, we used the orthogonal experimental design [38,39] to experiment with the processing parameters. Wire breakage is prevented by processing conditions with large pulse widths.…”

Optimizing laser cladding powder injection parameters to shape bioactive glass nano-coated zirconium oxide for biomedical application

“…The influence of CeO 2 powers was investigated [ 37 ]. [ [38] , [39] , [40] ] experimentally found that micro-hardness and wear resistance of samples influenced by the material used for cladding and recommended the optimization to maximize the microhardness and minimize the wear in the cladded joints [ 41 ]. utilized Taguchi orthogonal experimental design for optimizing the laser cladding processing parameters [ 42 ].…”

“…Next, using white light interferometry, the 3D morphology of each sample's scratch surface was determined. Each sample's wear volume was then measured [ 39 , 41 ]. The computes assisted universal testing machine of model INSTRON E−3000 was utilized to characterizes the samples for compressive strength.…”