Metal sheet with a ZnAlMg coating having a particular microstructure, and corresponding production method
US9598757B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jul 8, 2013 |
| Grant date | Mar 21, 2017 |
| Priority date | — |
| Expiry date | Jul 8, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A metal sheet including a substrate having at least one face coated by a metallic coating is provided. The metallic coating has an aluminum content by weight tAl of between 3.6 and 3.8% a magnesium content by weight tMg of between 2.7 and 3.3%. The coating has a microstructure comprising a lamellar matrix of eutectic ternary Zn/Al/MgZn2 and possibly:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.