Hard phase forming alloy powder, wear resistant sintered alloy, and production method for wear resistant sintered alloy

摘要

A hard phase forming alloy powder, for forming a hard phase dispersed in a sintered alloy, consists of, by mass %, 15 to 35% of Mo, 1 to 10% of Si, 10 to 40% of Cr, and the balance of Co and inevitable impurities. A production method, for a wear resistant sintered alloy, includes preparing a matrix forming powder, the hard phase forming alloy powder, and a graphite powder. A wear resistant sintered alloy exhibits a metallic structure in which 15 to 45% of a hard phase is dispersed in a matrix. The hard phase consists of, by mass %, 15 to 35% of Mo, 1 to 10% of Si, 10 to 40% of Cr, and the balance of Co and inevitable impurities.

主权项

1. A wear resistant sintered alloy exhibiting a metallic structure in which 15 to 45 mass % of a hard phase is dispersed in a matrix, the hard phase consisting of, by mass %, 15 to 35% of Mo, 1 to 10% of Si, 10 to 40% of Cr, 7 to 37.6% of Fe, not more than 5% of Mn as an optional element, and the balance of Co and inevitable impurities.