Control of inclusion morphology in steel
US4042381A · kind A · utility
5Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 1976 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Jul 6, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C33/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Effective, low cost sulfide shape control is obtained using in combination titanium and a rare earth metal, e.g., mischmetal, in steels meeting the following specifications: at least 0.020% aluminum, no more than 0.010% nitrogen, no more than 0.025% sulfur, no more than 0.70% manganese, at least 0.020% titanium, and at least 0.020% of at least one rare earth metal. The steels are characterized by sulfide inclusions having a globular and/or fine, short blocky shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.