MACHINE COMPONENT AND METHOD FOR MANUFACTURING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a machine component that is excellent in mechanical strength or the like and can be mass produced at low cost.SOLUTION: A gear 1 (a machine component) is composed of a sintered body obtained by sintering a green compact of a raw material powder 10 that contains a molybdenum-containing iron-based alloy powder as a main raw material and is prepared by mixing the alloy with 0.1-0.8 mass% of a carbon powder. The gear 1 has a hardened layer formed by heat treatment after sintering, and has a true density ratio of 97% or more and less than 100%.SELECTED DRAWING: Figure 1