Creep behaviour of Fe3Al-based alloys in DO3 phase field

Authors
Sundar, RS Sastry, DH
Citation
Rs. Sundar et Dh. Sastry, Creep behaviour of Fe3Al-based alloys in DO3 phase field, INTERMETALL, 8(9-11), 2000, pp. 1061-1065
Citations number
25
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
INTERMETALLICS
ISSN journal
09669795 → ACNP
Volume
8
Issue
9-11
Year of publication
2000
Pages
1061 - 1065
Database
ISI
SICI code
0966-9795(200009/11)8:9-11<1061:CBOFAI>2.0.ZU;2-V
Abstract
A study is made to bring out the effect of alloying with Cr, Ti or Mn on th e creep behaviour of Fe3Al. Impression creep experiments have been carried out in the DO3 phase field. In all the alloys, power law creep behaviour is observed in the stress range covered. The stress exponent for steady state creep rate and the activation energy for dreep indicate that the creep rat e is controlled by the dislocation climb process. Among the alloying elemen ts studied, addition of Ti is most effective in improving the creep resista nce. (C) 2000 Elsevier Science Ltd. All rights reserved.