Fatigue-induced precipitates at grain boundary of Nb-A286 alloy in high temperature low cycle fatigue

Authors
Citation
Bs. Rho et Sw. Nam, Fatigue-induced precipitates at grain boundary of Nb-A286 alloy in high temperature low cycle fatigue, MAT SCI E A, 291(1-2), 2000, pp. 54-59
Citations number
15
Language
INGLESE
art.tipo
Article
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
0921-5093 → ACNP
Volume
291
Issue
1-2
Year of publication
2000
Pages
54 - 59
Database
ISI
SICI code
0921-5093(20001031)291:1-2<54:FPAGBO>2.0.ZU;2-W
Abstract
A quantitative analysis of the effect of the total strain range on the eta precipitates at grain boundary under high temperature low-cycle fatigue has been interpreted for Nb-A286 alloy. The value of the activation energy of eta phase formation with total strain range was analyzed by using the in si tu X-ray diffraction (XRD) technique and the differential thermal analysis (DTA) technique. The applied strain during the low-cycle fatigue decreases the activation energy of eta phase formation at grain boundary. The trend o f decreasing the temperature of eta phase formation with the applied strain was found to be due to the accommodation of deformation near grain boundar y. (C) 2000 Elsevier Science S.A. All rights reserved.