Method for providing strong wire and strip
US4042423A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 1975 |
| Grant date | Aug 16, 1977 |
| Priority date | — |
| Expiry date | Dec 3, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D8/065
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for improving the strength of wire or strip having a composition which consists essentially of an austenitic metal alloy selected from the group consisting of stainless steel alloys of the AISI 200 and 300 series and non-stainless steel alloys containing iron, manganese, chromium, and carbon, said alloy having an Md temperature of no higher than about 100.degree. C and an Ms temperature of no higher than about minus 100.degree. C comprising the following step: PA1 Stretching the wire or strip uniaxially at a strain of at least about 10 percent and at a temperature no higher than about minus 75.degree. C in such a manner that the wire or strip has a martensite phase of at least about 50 percent by volume and an austenite phase of at least about 10 percent by volume.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.