Study of wear characteristics of Manganese phosphate coating on High carbon high chromium steel

Abstract

Increase in life of a component can be done either by alloying with newlinevarious suitable materials before its manufacturing or by suitable coating on it newlineafter manufacturing Application of coatings on tools and machine elements is newlinean efficient way of improving their frictional and wear resistance properties newlineHigh carbon high chromium steel AISI D2 has properties like high newlineHardness wear resistance dimensional stability etc In particular AISI D2 newlinesteel possesses high wear resistance good resilience high toughness and newlinegood hardenability It is hence employed in the production of tools with newlinecomplex shape and close dimensional tolerances But the major drawback of newlineusing this is its higher coefficient of friction during metal to metal contact newlineThis research work aims to reduce the coefficient of friction wear volume newlineand to avoid metal to metal contact by providing a conventional coating such newlineas manganese phosphate coating in order to improve the wear resistance of newlinetool materials newlineThe manganese phosphate coating is applied on high carbon newlinehigh chromium steel substrate by immersion method The solution consists of newlinephosphoric acid Manganese phosphate salt and accelerator newline newline