MICROSTRUCTURAL CHANGES INDUCED BY SUPERP LASTIC LIKE DEFORMATION IN DISPERSION-STRENGTHENED AL-AL4C3 SYSTEM

Authors
BESTERCI M SLESAR M ZRNIK J KOVAC L
Citation
M. Besterci et al., MICROSTRUCTURAL CHANGES INDUCED BY SUPERP LASTIC LIKE DEFORMATION IN DISPERSION-STRENGTHENED AL-AL4C3 SYSTEM, Kovove materialy, 33(3), 1995, pp. 142-147
Citations number
14
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Kovove materialy → ACNP
ISSN journal
0023432X
Volume
33
Issue
3
Year of publication
1995
Pages
142 - 147
Database
ISI
SICI code
0023-432X(1995)33:3<142:MCIBSL>2.0.ZU;2-E
Abstract
In the presented work the microstructural changes in Al-Al4C3 with 4 v ol.% of Al4C3 are presented, with their relations to the properties af ter straining at different temperatures and strain rates. It has been shown, up to 300 degrees C the dislocation slip in the grains is the d ominant deformation mechanism; from 350 to 450 degrees C also the addi tional mechanisms of the slide on the grain boundaries are in effect; at the temperature 450 degrees C and at the strain rate 10(-1) s(-1) a superplastic like behaviour was observed, the microstructure showing remarkable elongation of the grains in one direction.