Method for inspecting and processing high hardness alloy steels
US10260140B2 · kind B2 · utility
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4References
16Claims
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Key dates
| Filing date | Oct 22, 2015 |
| Grant date | Apr 16, 2019 |
| Priority date | — |
| Expiry date | Jan 29, 2037 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC23F3/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A highly reactive conversion coating chemistry is used during CAVF processing of high hardness steel alloys such as AMS 6509 and AMS 6517 steel alloys. This chemistry produces a hard, thin, black conversion coating that is not fully rubbed off by the media during the CAVF process. Distressed material regions on the surface of the alloys are not susceptible to forming the conversion coating and remain white. Visual inspection for the presence of such regions is facilitated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.