Optimization design of plasma sprayed Al₂O_3p/NiCrBSi composite coatings

By means of the quadratic regression combination design process,the regression equations of erosion mass lost rate were established.Effects of plasma spraying paramaters on the erosion resistance of coatings were investigated.The optimum spraying parameters corresponding to the minimum erosion mass lost rate were obtained by using Matlab software.This work provides scientific basis and technology data for practical application of Al₂O_3p/NiCrBSi compsite coatings.