Determination of wear rate equation and estimation of residual life of 155mm autofrettaged gun barrel

Abstract

Wear of steel at high temperature is a complex phenomenon. Quantification of wear per event is an important aspect in assessing life of a component. Necessity of economics and light weighted components compels to study the system under common parameters and extrapolate the results. Temperatures/pressures inside a gun are impossible to be measured by direct methods. Mathematical modeling and comparison of results with end effect measurable parameters is only way to predict it's accuracy.There is no one such quantitative demonstration which can predict accurate wear rate. Gun wear is unique to gun system and no one theory fits into predictions of gun wear. Gun wear is unique phenomena wrt any particular gun system and needs to be studied independently. Numerous studies have been carried to study steel wear below 600°C. Wear studies at higher temperature i.e. above 600°C is not enough to describe correct wear phenomena.