Sliding member and member for internal combustion engine
US-2021293274-A1 · Sep 23, 2021 · US
Sliding member and member for internal combustion engine
US2021324913A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021324913-A1 |
| Application number | US-201917264414-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jun 13, 2019 |
| Priority date | Aug 2, 2018 |
| Publication date | Oct 21, 2021 |
| Grant date | — |
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- Title
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Abstract
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A sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate, and the particle aggregate contains two or more kinds of precipitation hardened copper alloy particles that have different compositions. The sliding member has high coating strength and superior wear resistance.
First claim
Opening claim text (preview).
1 .- 8 . (canceled) 9 . A sliding member comprising a base material and a coating layer that is formed on the base material, the coating layer including a particle aggregate, and the particle aggregate containing two or more kinds of precipitation hardened copper alloy particles having different compositions. 10 . The sliding member according to claim 9 , wherein at least one kind of the precipitation hardened copper alloy particles that form the particle aggregate, has Vickers hardness of from 150 Hv to 250 Hv. 11 . The sliding member according to claim 9 , wherein a difference in hardness between the two or more kinds of the precipitation hardened copper alloy particles is 200 Hv or smaller. 12 . The sliding member according to claim 9 , wherein the difference in hardness between the two or more kinds of the precipitation hardened copper alloy particles is 60 Hv or smaller. 13 . The sliding member according to claim 9 , wherein at least one of the base material and the coating layer includes a plastically deformed part. 14 . The sliding member according to claim 9 , including at least one of an amorphous substance and a nanocrystal at an interface between the particles that form the coating layer. 15 . The sliding member according to claim 9 , comprising an intermediate layer at least at a part between the base material and the coating layer, the intermediate layer containing at least one of a diffusion layer and an intermetallic compound layer. 16 . The sliding member according to claim 15 , wherein the intermediate layer has a film thickness of 2 μm or less. 17 . A sliding member of an internal combustion engine, comprising the sliding member according to claim 9 at a sliding part of the internal combustion engine. 18 . The sliding member according to claim 10 , wherein a difference in hardness between the two or more kinds of the precipitation hardened copper alloy particles is 200 Hv or smaller. 19 . The sliding member according to claim 10 , wherein the difference in hardness between the two or more kinds of the precipitation hardened copper alloy particles is 60 Hv or smaller.
Assignees
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Classifications
Metallic powder characterised by particles having an amorphous microstructure · CPC title
Metallic powder characterised by the size or surface area of the particles · CPC title
Next to Co-, Cu-, or Ni-base component · CPC title
Thickness [relative or absolute] · CPC title
Surface feature [e.g., rough, mirror] · CPC title
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Frequently asked questions
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- What does patent US2021324913A1 cover?
- A sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate, and the particle aggregate contains two or more kinds of precipitation hardened copper alloy particles that have different compositions. The sliding member has high coating strength and superior wear resistance.
- Who is the assignee on this patent?
- Nissan Motor, Fukuda Metal Foil & Powder Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C23C28/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Oct 21 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).