Effect of Sulfide Inclusion on the Rubbing Wear of SUS316 Type Stainless Steels in Liquid Nitrogen

Abstract

In order to investigate the role of inclusions as sources for delamination wear in liquidized nitrogen (L.N₂), the rubbing wear tests of SUS316 type stainless steels including various amounts of sulfide inclusion against quench-hardened or tempered SUS440A type stainless steels were carried out in air at R. T. and in L.N₂. Results are summarized as follows: With increasing sulfur content, the wear-loss of SUS316 specimens increased and that of the tempered companions decreased, but the weight of hardened companions increased by adhesion. MoS₂ is a superior lubricant available for use in L.N₂.