High-strength cold-rolled steel sheet having excellent surface quality and low material variation, and method for manufacturing same
US-2024384366-A1 · Nov 21, 2024 · US
Sliding member and internal combustion engine provided with sliding member
US2025243572A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025243572-A1 |
| Application number | US-202218848145-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 13, 2022 |
| Priority date | Mar 28, 2022 |
| Publication date | Jul 31, 2025 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A sliding member includes at least one surface having a particle aggregate of base material particles and hard particles. The hard particles are iron-based alloy particles containing molybdenum silicide in an amount of 35% to 90% by area. The sliding member has a wear resistance equivalent to that of a sliding member that uses cobalt-based hard particles.
First claim
Opening claim text (preview).
1 . A sliding member comprising: at least one surface having a particle aggregate of base material particles and hard particles, wherein the hard particles are iron-based alloy particles containing molybdenum silicide in an amount of 35% to 90% by area. 2 . The sliding member according to claim 1 , wherein the hard particles contain, in order from the most abundant element in percentage by mass, iron (Fe), molybdenum (Mo), and silicon (Si), and wherein the silicon content is 2.3% to 16% by mass. 3 . The sliding member according to claim 1 , wherein the molybdenum silicide includes a Laves phase. 4 . The sliding member according to claim 3 , wherein the hard particles contain 2% to 90% by area of the Laves phase. 5 . The sliding member according to claim 3 , wherein the hard particles contain 10% to 85% by area of the Laves phase. 6 . The sliding member according to claim 3 , wherein the hard particles contain 30% to 80% by area of the Laves phase. 7 . The sliding member according to claim 1 , wherein the base material particles are copper-based alloy particles or iron-based alloy particles. 8 . The sliding member according to claim 1 , wherein the base material particles and the hard particles are sprayed onto a substrate to deform and laminate. 9 . The sliding member according to claim 1 , wherein the base material particles and the hard particles are sintered. 10 . An internal combustion engine comprising the sliding member according to claim 1 .
Assignees
Inventors
Classifications
comprising a particular metallic binder · CPC title
based on silicides · CPC title
Coated valve members or valve-seats · CPC title
Coating with metallic material, i.e. metals or metal alloys, optionally comprising hard particles, e.g. oxides, carbides or nitrides · CPC title
containing silicon · CPC title
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Frequently asked questions
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- What does patent US2025243572A1 cover?
- A sliding member includes at least one surface having a particle aggregate of base material particles and hard particles. The hard particles are iron-based alloy particles containing molybdenum silicide in an amount of 35% to 90% by area. The sliding member has a wear resistance equivalent to that of a sliding member that uses cobalt-based hard particles.
- 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 C22C38/12. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jul 31 2025 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).