IRON-BASED SINTERED SLIDING MEMBER AND PRODUCTION METHOD THEREOF

摘要

PROBLEM TO BE SOLVED: To provide an iron-based sintered sliding member in which a solid lubricant is dispersed uniformly not only in pores and the powder grain boundary but also within the powder grain and fastened firmly to a matrix and which is excellent in sliding characteristics and mechanical strength.SOLUTION: An iron-based sintered sliding member has an entire composition of 3.24-8.10 mass% of S and remaining Fe and unavoidable impurities and has a metal structure composed of a ferrite matrix dispersed with sulfide grains and pores. The sulfide grains are dispersed in a ratio of 15-30 vol.% relative to the matrix.