IN-SITU STUDY OF THE SELF-ACCOMMODATING PROCESS DURING THE MARTENSITIC-TRANSFORMATION OF A CU-ZN-AL SINGLE-CRYSTAL BY SYNCHROTRON X-RAY TOPOGRAPHY .2. DYNAMICS OF THE PROCESS AND ROLE OF CRYSTALLINE DEFECTS

Authors
JOURDAN C GASTALDI J GRANGE G BELKAHLA S GUENIN G
Citation
C. Jourdan et al., IN-SITU STUDY OF THE SELF-ACCOMMODATING PROCESS DURING THE MARTENSITIC-TRANSFORMATION OF A CU-ZN-AL SINGLE-CRYSTAL BY SYNCHROTRON X-RAY TOPOGRAPHY .2. DYNAMICS OF THE PROCESS AND ROLE OF CRYSTALLINE DEFECTS, Acta metallurgica et materialia, 43(12), 1995, pp. 4227-4234
Citations number
17
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Acta metallurgica et materialia → ACNP
ISSN journal
09567151
Volume
43
Issue
12
Year of publication
1995
Pages
4227 - 4234
Database
ISI
SICI code
0956-7151(1995)43:12<4227:ISOTSP>2.0.ZU;2-2
Abstract
The martensitic transformation of Cu-Zn-Al single crystals has been fo llowed in situ and in real time by synchrotron X-ray topography. We ha ve shown that at the M(s) temperature, the transformation proceeds by nucleation and growth of transformation variants associated by self-ac commodating pairs. The nucleation of these variants is triggered by th e crystal substructure. When the martensitic transformation is multiva riant the behaviour of the crystal substructure and the development of elastic stresses inducing a reversible curvature of lattice planes ha s been displayed.