Apparatus for a thermodynamic material testing system that produces very large strains in crystalline metallic specimens and accompanying methods for use therein
US6422090B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Jul 23, 2002 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0694
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Thermodynamic material testing apparatus and a method for use therein which are capable of controllably inducing very large strains in crystalline metallic specimens. The apparatus prevents longitudinal flow elongation, that otherwise results in conventional testing systems when a specimen is compressively deformed, from occurring but permits sideways material flow outwards from a specimen work zone. The specimen is rotated between successive deformations through a predefined angle, e.g., 90 degrees, in order to present strained specimen material to opposing anvil faces for a next successive compressive deformation. Rotating the specimen between hits and hence compressing previously strained material permits the same work zone material to be deformed many times with very high strains induced therein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.