Fe—cr—al based alloy foil and method for producing the same
US6719855B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2002 |
| Grant date | Apr 13, 2004 |
| Priority date | — |
| Expiry date | Feb 28, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12431
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides an Fe—Cr—Al-based alloy for catalyst carriers and a foil thereof having a thickness of 40 &mgr;m or less, the alloy and the foil improved in the oxidation resistance at high temperatures and having excellent deformation resistance. Specifically, the present invention provides an Fe—Cr—Al-based alloy foil and a manufacturing method thereof, comprising 16.0 to 25.0 mass % of Cr, 1 to 8 mass % of Al, La, Zr, and the balance being Fe and incidental impurities. The contents by mass % of La and Zr meet the following ranges when the foil thickness thereof is t &mgr;m:1.4/t≦La≦6.0/t  (1)0.6/t≦Zr≦4.0/t  (2)The Fe—Cr—Al-based alloy foil may further comprises Hf and the balance being Fe and incidental impurities, wherein the contents by mass % of La, Zr, and Hf meet the following ranges:1.4/t≦La≦6.0/t  (1)0.4/t≦Zr≦2.0/t  (3)0.5/t≦Hf≦2.0/t  (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.