Highly wear-resistant iron-nickel-copper-molybdenum sintered alloy with addition of phosphorous
US4909843A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 2, 1987 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Oct 2, 2007 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/0264
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A highly wear-resistant sintered alloy is to be provided, with which, using conventional sintering technology and no additional hardening treatment, commodity parts are to be produced, which, in respect to their wear property are to be equivalent to chilled cast iron parts. They should have a surface roughness of approximately 50 Rockwell and only a slight shrinkage. This is accomplished with an iron-nickel-copper-molybdenum sintered alloy with addition of phosphorus, which contains a proportion of carbon, which exceeds the phosphorus added by at least a factor of 2. Essentially, the alloy has the following composition: PA0 1.0-5.0% (by weight) of nickel (Ni) PA0 1.0-3.0% (by weight) of copper (Cu) PA0 0.3-1.0% (by weight) of molybdenum (Mo) PA0 0.3-0.6% (by weight) of phosphorus (P) PA0 1.0-2.5% (by weight) of carbon (C) PA0 remainder: iron (Fe)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.