Method of preventing local corrosion at weld joints
US5575867A · kind A · utility
0Cited by
0References
6Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 1995 |
| Grant date | Nov 19, 1996 |
| Priority date | — |
| Expiry date | Aug 17, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23C8/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of preventing corrosion damage at weld joints, in the heat affected zones of weld joints, and in heat-treated zones of components made of stainless steels having chromium contents .gtoreq.12% by weight, which comprises exposing weld joints and the heat affected zones of the weld joints, or the heat-treated zones, to a water vapor atmosphere at temperatures of 100.degree. to 250.degree. C. for five to sixty minutes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.