Aluminum alloy composition with improved elevated temperature mechanical properties
US-10815552-B2 · Oct 27, 2020 · US
High strength ductile 6000 series aluminum alloy extrusions
US11359269B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11359269-B2 |
| Application number | US-201916271239-A |
| Country | US |
| Kind code | B2 |
| Filing date | Feb 8, 2019 |
| Priority date | Feb 8, 2019 |
| Publication date | Jun 14, 2022 |
| Grant date | Jun 14, 2022 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %, and a balance of the alloy composition being aluminum (Al). The alloy composition has an intermetallic phase content of less than or equal to about 3 wt. %. Methods of preparing the alloy composition and of processing the alloy composition are also provided.
First claim
Opening claim text (preview).
What is claimed is: 1. An alloy composition consisting essentially of: silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %; magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %; chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.3 wt. %; optionally iron (Fe) at a concentration of less than or equal to about 0.25 wt. %; optionally copper (Cu) at a concentration of less than or equal to about 0.3 wt. %; optionally manganese (Mn) at a concentration of less than or equal to about 0.5 wt. %; and optionally zinc (Zn) at a concentration of less than or equal to about 0.2 wt. %; optionally trace contaminants each present at less than or equal to 0.05 wt. %, and a balance of the alloy composition being aluminum (Al), wherein the Si and Mg are present in the alloy composition at a Si:Mg ratio of greater than or equal to about 0.95 (19:20) to less than or equal to about 1.05 (21:20); and wherein the alloy composition has an intermetallic phase content of less than or equal to about 3 wt. % and a tensile strength of greater than or equal to about 350 MPa after processing. 2. The alloy composition according to claim 1 , comprising at least one of iron (Fe) at a concentration of greater than or equal to about 0.15 wt. % to less than or equal to about 0.25 wt. %; copper (Cu) at a concentration of greater than about 0 wt. % to less than or equal to about 0.3 wt. %; manganese (Mn) at a concentration of greater than or equal to about 0.3 wt. % to less than or equal to about 0.5 wt. %; and zinc (Zn) at a concentration of greater than or equal to about 0.1 wt. % to less than or equal to about 0.2 wt. %. 3. The alloy composition according to claim 2 , comprising each of the Fe, Cu, Mn, and Zn. 4. The alloy composition according to claim 1 , wherein the alloy composition is configured to have a bamboo grain crystal structure after processing, wherein the bamboo grain crystal structure comprises greater than or equal to about 80% aligned longitudinal grains. 5. The alloy composition according to claim 1 , wherein the alloy composition is in the form of a billet. 6. An automobile part comprising the alloy composition according to claim 1 .
Assignees
Inventors
Classifications
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US11359269B2 cover?
- An alloy composition is provided. The alloy composition includes silicon (Si) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, magnesium (Mg) at a concentration of greater than or equal to about 0.55 wt. % to less than or equal to about 0.75 wt. %, chromium (Cr) at a concentration of greater than or equal to about 0.15 wt. % to less than…
- Who is the assignee on this patent?
- Gm Global Tech Operations Llc
- What technology area does this patent fall under?
- Primary CPC classification C22F1/05. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 14 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).