Sintered alloy and production method therefor
AssigneeHitachi Chemical Company, Ltd.
InventorsDaisuke Fukae, Hideaki Kawata
Life of this patent
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Abstract
A sintered alloy having superior heat resistance and superior wear resistance and also having corrosion resistance against salt damage that may occur in cold-weather regions, and a production method therefor, are provided. The sintered alloy consists of, by mass %, 32.4 to 48.4% of Cr, 2.9 to 10.0% of Mo, 0.9 to 2.9% of Si, 0.3 to 1.8% of P, 0.7 to 3.9% of C, and the balance of Fe and inevitable impurities, and it has a density ratio of not less than 90% and includes carbides that are dispersed in a matrix of a metallic structure thereof.
Claims4
A sintered alloy consisting of, by mass %, 32.4 to 48.4% of Cr, more than 3.0% and not more than 10.0% of Mo, 0.9 to 2.9% of Si, 0.3 to 1.8% of P, 0.7 to 3.9% of C, and the balance of Fe and inevitable impurities, having a density ratio of not less than 90%, and including carbides that are dispersed in a matrix of a metallic structure thereof,
- wherein the carbides are dispersed in the metallic structure, except for pores, at 35 to 70% by area ratio.
Dependencies are inferred from the claim text.