Wear-resistant sintered iron article.

摘要

A wear-resistant iron alloy article is preferably formed by compacting and sintering a predominantly iron powder mixture containing additions of carbon, copper and nickel boride. The product microstructure comprises hard borocementite particles dispersed in a martensite or pearlite matrix. The particles have a cross-sectional dimension greater than 1 micrometre and are present in an amount preferably between 10 and 30 volume percent of the article to improve the wear resistance thereof.