Severe Wear of Pearlitic Steel Weld Metal

Abstract

A study has been made of the severe wear of pearlitic steel weld metal, rubbing on itself, at a speed of 2.5cm/s under a load of 40kg, in unlubricated conditions.
In this range of the test conditions, once equilibrium surface conditions are estabiished, the relation-ship W=KL/P_m is obeyed, where W is the wear rate, L is the load, and P_m is the flow pressure of the material.
This values of K indicates the wear property of the weld metal.
The relationship between wear property and micro structure or chemical composition is speculated. By the microscopical examinations of the wearing surface, it has been possible to from a picture of the movement of the wear debris.