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US 12,110,922 B2Granted
Slide member
AssigneeDaido Metal Company Ltd.
InventorsRolandas Verbickas, Yuma Haneda, Yi Zhang
Life of this patent
Estimating the term…
Abstract
Provided is a slide member having an overlay on a bearing alloy. The overlay has a thickness T and has a sliding surface and an interface with respect to the bearing alloy. The overlay includes an intermetallic compound and a matrix of Bi or a Bi alloy. In a thickness domain constituting 70%-75% of the thickness T of the overlay from the sliding surface to the interface, the volume proportion of the intermetallic compound is 10%-70%.
Claims9
A sliding member comprising an overlay on a bearing alloy,
- wherein the overlay includes a sliding surface and an interface with the bearing alloy, the sliding surface and the interface defining a thickness T of the overlay, and the overlay comprising a matrix of Bi or a Bi alloy and intermetallic compounds dispersed in the matrix,
- wherein a volume ratio of the intermetallic compounds is 10% to 70% in a region extending between a position of the overlay at a depth of 70% of the thickness T from the sliding surface toward the interface and a position of the overlay at a depth of 75% of the thickness T from the sliding surface toward the interface, and
- wherein the overlay includes a conforming layer, the conforming layer having the sliding surface and a volume ratio of the intermetallic compounds in the conforming layer being not more than 5%.
Dependencies are inferred from the claim text.