Process product, and powder for producing high strength structural member
US5145503A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 31, 1991 |
| Grant date | Sep 8, 1992 |
| Priority date | — |
| Expiry date | May 31, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F1/09
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for producing a high strength structural member by sintering a starting powder material, a powder mixture of a basic powder and an additional powder is used as the starting powder material. The basic powder is comprised of at least one of an amorphous single-phase alloy powder and at least one kind of a mixed-phase alloy powder which contains a crystalline phase and an amorphous phase and has a crystalline phase volume fraction C (Vf) less than 30%, and the additional powder is comprised of a mixed-phase alloy powder containing a crystalline phase and an amorphous phase and having a crystalline phase volume fraction C (Vf) of at least 30% to less than 80%. The relationship between the minimum volume fraction Pm (Vf) of the additional powder in the starting powder material and the crystalline phase volume fraction C (Vf) in the additional powder is established such that Pm (Vf)=-0.7 C (Vf)+61. This ensures that a structural member having a high strength and a high toughness can be produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.