Abstract: A manufacturing method for wear resistant sintered member is provided. The method includes: compacting a raw powder containing a matrix forming powder and a hard phase forming powder into a green compact, the matrix forming powder containing 90 mass % or more of a powder having the maximum particle diameter of 46 ?m, and the hard phase forming powder being 40 to 70 mass % with respect to the raw powder; and sintering the green compact.

Abstract: A sintered composite sliding part has an outer member made of an Fe-based wear resistant sintered member in which a hard phase is dispersed in a matrix at 15 to 70% by volume and an inner member made of a stainless ingot steel. The matrix is made of an Fe-based alloy including 11 to 35% by mass of Cr, and the hard phase is formed by precipitating and dispersing at least one selected from the group consisting of intermetallic compounds, metallic suicides, metallic carbides, metallic borides, and metallic nitrides in an alloy matrix made of at least one selected from the group consisting of Fe, Ni, Cr, and Co. The outer member is formed with a hole, the inner member is closely fitted into the hole, and the outer member and the inner member are diffusion bonded together.

Abstract: A manufacturing method for wear resistant sintered member is provided. The method includes: compacting a raw powder containing a matrix forming powder and a hard phase forming powder into a green compact, the matrix forming powder containing 90 mass % or more of a powder having the maximum particle diameter of 46 ?m, and the hard phase forming powder being 40 to 70 mass % with respect to the raw powder; and sintering the green compact.

Abstract: A production method for a sintered component made of stainless steel with high corrosion resistance has steps of preparing a perovskite composite oxide powder made of rare earth element, transition metal element and oxygen, and a stainless steel powder or a mixed powder having a stainless steel composition, mixing the perovskite composite oxide powder and the stainless steel powder or the mixed powder, whereby a raw powder in which the rare earth element is 0.1 to 12 mass % is prepared, compacting the raw powder in a predetermined shape, whereby a green compact is obtained, and sintering the green compact. The sintered component obtained by the production method is a component in which corrosion resistance can be increased without parts of decreasing Cr concentration and precise production processes and process control are not necessary.