Characteristic features of microstructure of ALMg5 deformed to large plastic strains

Authors
Richert, M Stuwe, HP Richert, J Pippan, R Motz, C
Citation
M. Richert et al., Characteristic features of microstructure of ALMg5 deformed to large plastic strains, MAT SCI E A, 301(2), 2001, pp. 237-243
Citations number
23
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN journal
09215093 → ACNP
Volume
301
Issue
2
Year of publication
2001
Pages
237 - 243
Database
ISI
SICI code
0921-5093(20010331)301:2<237:CFOMOA>2.0.ZU;2-5
Abstract
The evolution of the microstructure of the AIMg5 alloy was analysed and its typical features were determined. Large degrees of deformation were achiev ed using the cyclic extrusion compression method. The microstructure was an alysed by transmission electron microscopy and scanning electron microscopy . Dense dislocation walls and microbands cutting randomly distributed tangl es of dislocations. were observed. After a true strain phi = 16. mutual cro ssing of microbands led to a 'subgrain like microstructure. Large disorient ation angles up to 60 degrees were found between some neighbouring 'subgrai ns. but generally angles were lower (below 15 degrees). (C) 2001 Elsevier S cience B.V. All rights reserved.