THERMODYNAMIC PROPERTIES OF NANOCRYSTALLINE NI3AL-BASED ALLOYS PREPARED BY MECHANICAL ATTRITION

Authors
SURINACH S MALAGELADA J BARO MD
Citation
S. Surinach et al., THERMODYNAMIC PROPERTIES OF NANOCRYSTALLINE NI3AL-BASED ALLOYS PREPARED BY MECHANICAL ATTRITION, Materials science & engineering. A, Structural materials: properties, microstructure and processing, 168(2), 1993, pp. 161-164
Citations number
19
Categorie Soggetti
Material Science
Journal title
Materials science & engineering. A, Structural materials: properties, microstructure and processing → ACNP
ISSN journal
09215093
Volume
168
Issue
2
Year of publication
1993
Pages
161 - 164
Database
ISI
SICI code
0921-5093(1993)168:2<161:TPONNA>2.0.ZU;2-K
Abstract
In this paper, the thermodynamic properties of nanocrystalline Ni3Al-b ased alloys prepared by mechanical attrition are reported. A broad exo thermic transformation occurs on heating the nanocrystalline samples. The stored energy of cold work has been evaluated by measuring the ent halpy release during heating. The values obtained far exceed the energ ies achieved by conventional deformation processes. The specific heat increases by more than 5%, indicating changes in the vibrational and c onfigurational part of the entropy.