High hardness, high corrosion resistance and high wear resistance alloy
US8062441B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 22, 2005 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Aug 15, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/058
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
There are provided a high hardness, high corrosion resistance and high wear resistance alloy, wherein the alloy is an aging heat treated Cr(chromium)-Al(aluminum)-Ni(nickel)-base alloy, the proportion of a mixed phase of (α phase+γ′ phase+γ phase) precipitated at grain boundaries of γ phase grains in a metal structure in the cross section of the alloy is not less than 95% in terms of area ratio, and the intensity ratio as measured by X-ray diffractometry of the alloy is not less than 50% and not more than 200% in terms of Iα(110)/[Iγ(200)+Iγ′(004)]×100, and a component comprising this alloy, a material for an alloy which can form this alloy, and a process for producing this alloy. The present invention can provide a Cr—Al—Ni-base alloy possessing excellent corrosion resistance, hardness, wear resistance, releasability, fatigue strength, and planishing property in a molding face, a component comprising this alloy, a material for an alloy which can form this alloy, and a process for producing this alloy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.