Effect of zinc concentration and experimental parameters on high stress abrasive wear behaviour of Al-Zn alloys: A factorial design approach

where C, L and A are coded values of Zn-concentration, applied load and abrasive size, respectively, and the multiplication factor for the wear rate and the coefficients is 10−11 m3/m. The positive value of the coefficients associated with coded values of various parameters and their interactions in the above equation suggests that abrasive wear rate increases with zinc concentration, abrasive size and applied load. The validity of the developed equation has been checked with experimental values at randomly selected experimental parameters within the selected experimental domain. The results have been explained with selected worn surfaces and debris analysis.