Microstructural evolution of Udimet 720 superalloy

Authors
Calliari, I Magrini, M Dabala, M
Citation
I. Calliari et al., Microstructural evolution of Udimet 720 superalloy, J MAT ENG P, 8(1), 1999, pp. 111-115
Citations number
10
Categorie Soggetti
Material Science & Engineering
Journal title
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN journal
10599495 → ACNP
Volume
8
Issue
1
Year of publication
1999
Pages
111 - 115
Database
ISI
SICI code
1059-9495(199902)8:1<111:MEOU7S>2.0.ZU;2-W
Abstract
The microstructural evolution of the nickel-base superalloy Udimet 720 (Spe cial Metals Corp., New Hartford, NY) aged at 850 degrees C for 1000 to 2000 h is presented. After aging, the gamma precipitates change from cubic to g lobular morphology. Secondary gamma particles and topologically close-packe d phases were not found. The gamma mean diameter increases with aging times , following the Lifshitz-Wagner model. The experimented aging times have no strong effects on mechanical properties of Udimet 720.