Aluminum Alloy Products Exhibiting Improved Bond Durability And/Or Having Phosphorus-Containing Surfaces And Methods Of Making The Same
Patent No. EP4119686 (titled "Aluminum Alloy Products Exhibiting Improved Bond Durability And/Or Having Phosphorus-Containing Surfaces And Methods Of Making The Same") was filed by Novelis on Oct 23, 2018. The application was issued on Feb 19, 2025.
Patent Summary
Aluminum alloy products with improved bond durability and corrosion resistance, achieved through controlled enrichment of specific elements in the subsurface region. The products exhibit high enrichment ratios for Cr, Mn, and Fe, while maintaining low enrichment ratios for Mg, Si, and Cu. The controlled element distribution creates a gradient in electrochemical activity, enhancing anodized qualities and reducing galvanic corrosion. The products can be prepared through a range of processing steps, including casting, rolling, heat treating, and pretreatment, to produce high-performance aluminum alloys suitable for applications such as automotive and aerospace components.
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Date
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EP4119686
- Application Number
- EP22193045A
- Filing Date
- Oct 23, 2018
- Status
- Granted And Under Opposition
- Jan 17, 2025
- Publication Date
- Feb 19, 2025
- External Links
- Slate, Register , Google Patents