Patent · US Expired

Apparatus for determining metal properties

US5033720A · kind A · utility

3Cited by
3References
2Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMar 23, 1990
Grant dateJul 23, 1991
Priority date
Expiry dateMar 23, 2010

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2203/0222
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A torsion pendulum apparatus and a dialometer are combined for simultaneous measurement of the internal friction and the expansion of an alloy. The combination is controlled by a programmable controller so as to conduct in-situ measurements of the internal friction and the expansion of a metal during its phase transformation or specific heat treatment. The results of the internal friction measurement and the expansion measurement can be checked and assumed by one another so that more accurate and detailed information can be obtained for the study of metal alloys.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.