Method for determining the relative HAZ toughness of steel
US5080732A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 1989 |
| Grant date | Jan 14, 1992 |
| Priority date | — |
| Expiry date | Jun 20, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0296
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for determining the relative HAZ toughness of steel. The method comprises determining at least two thermal cycles of the steel for at least one weld heat input value and then simulating the HAZ that would result if the steel were actually welded in accordance with those thermal cycles. The steel is then fractured to determine various fracture properties, each of which may be used to determine the midpoint transition temperature associated with the fracture property used. The midpoint transition temperature is compared to a previously determined standard maximum midpoint transition temperature and if it is greater than the standard, the steel may have low HAZ toughness, but if it is less than the standard, the steel may have a high HAZ toughness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.