J. Phys. IV France
Volume 05, Numéro C8, Décembre 1995
International Conference on Martensitic Transformations – ICOMAT 95
Page(s) C8-191 - C8-196
International Conference on Martensitic Transformations

J. Phys. IV France 05 (1995) C8-191-C8-196

DOI: 10.1051/jp4:1995825

Microcalorimetry on Metastable Beta Phase Alloys Subjected to Applied Stress

C.J. Elvidge and C.M. Friend

Dept. of Materials Science and Engineering Cranfield University, Shrivenham Campus, Swindon, England

The development of a High Sensitivity Scanning Stress Microcalorimeter for the study of martensitic phase transformations in beta phase CuAlNi single crystal tensile specimens is described. The design of this system is discussed with reference to an earlier version. The values of calorimetric sensitivity reported for the new system represent a significant improvement over the prototype and a comparison is made. More significantly, the new sensitivity values compare directly with those reported for stress free instruments employing similar detectors indicating that many of the problems associated with calorimetric measurements under stress have been considerably reduced.

© EDP Sciences 1995