High-strength metal solidified material and acid steel and manufacturing methods thereof
US6332905A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Dec 4, 2000 |
| Grant date | Dec 25, 2001 |
| Priority date | — |
| Expiry date | Dec 4, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB22F2998/10
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention according to the present application provides a high strength solidification body by solidifying a starting metallic powder of iron and the like by means of plastic working using hydrostatic pressing, which is, for instance, a high strength high toughness steel material and the like having a superfine texture comprising a crystalline texture consisting of grains 5 .mu.m or less in average diameter, or preferably, 3 .mu.m or less in average diameter. Furthermore, the present invention provides a steel material included in the high strength solidification body, which contains oxide grain 0.2 .mu.m or less in diameter at a volume ratio of from 0.5 to 60%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.