Wear and corrosion resistant articles made from pm alloyed irons
US4765836A · kind A · utility
13Cited by
7References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1986 |
| Grant date | Aug 23, 1988 |
| Priority date | — |
| Expiry date | Dec 11, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0285
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A powder-metallurgy alloy article having a good combination of wear resistance and corrosion resistance. The article is further characterized by an attainable minimum hardness after heat treatment of 60R.sub.c and a martensitic structure. The article is made from prealloyed particles of the composition, in percent by weight, carbon 2.5-5, manganese 0.2-1, phosphorus 0.10 maximum, sulfur 0.10 maximum, silicon 1 maximum, nickel 0.5 maximum, chromium 15-30, molybdenum, 2-10 vanadium 6-11, nitrogen 0.15 maximum and balance, iron. The article has a fine, uniform distribution of a MC and other carbide phases.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.