Hard-facing alloys having improved crack resistance
US8735776B2 · kind B2 · utility
1Cited by
32References
19Claims
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Key dates
| Filing date | Jul 1, 2013 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Jul 1, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/477
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Weld deposit compositions with improved crack resistance, improved wear resistance, and improved hardness are provided by controlling matrix grain size and balancing Titanium and/or Niobium with Carbon and/or Boron content. Additionally, the presence of coarse chromium carbides is drastically decreased to reduce the amount of check-cracking. Preferably, the weld deposit is produced from a flux-cored or metal-cored wire. The weld deposit characteristics include a matrix having a fine grain size, small evenly dispersed carbides within the matrix, and a small amount of Carbon in the matrix.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.