Multi-layer material with an anti-erosion, anti-abrasion, and anti-wear coating on a substrate made of aluminum, magnesium or their alloys
US6159618A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 29, 1998 |
| Grant date | Dec 12, 2000 |
| Priority date | — |
| Expiry date | May 29, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12743
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention relates to a multi-layer material that comprises a substrate made of aluminum, magnesium or their alloys, having possibly been subjected to a surface treatment, this substrate being provided with a coating comprising a tungsten based deposit and an under-layer--inserted between said substrate and said deposit--of a material having mechanical and thermo-mechanical properties intermediate to those of said substrate and said deposit. This under-layer is made up of at least one layer of a material chosen from among chromium, molybdenum, niobium, titanium, zirconium, their nitrides and carbides, solid solutions of carbon and of nitrogen in said metals, and steels and greatly improves the adherence of said coating to said substrate. The invention also relates to the anti-erosion, anti-abrasion, anti-wear coating comprising said tungsten based deposit and said under-layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.