SUPERPLASTICITY OF A NICKEL SUPERALLOY WITH SUBMICROCRYSTALLINE STRUCTURE

Authors
VALITOV VA SALISHCHEV GA MUKHTAROV SK
Citation
Va. Valitov et al., SUPERPLASTICITY OF A NICKEL SUPERALLOY WITH SUBMICROCRYSTALLINE STRUCTURE, Russian metallurgy. Metally, (3), 1994, pp. 109-112
Citations number
9
Categorie Soggetti
Metallurgy & Mining
Journal title
Russian metallurgy. Metally → ACNP
ISSN journal
00360295
Issue
3
Year of publication
1994
Pages
109 - 112
Database
ISI
SICI code
0036-0295(1994):3<109:SOANSW>2.0.ZU;2-F
Abstract
The effect of thermomechanical processing schedules on the formation o f submicrocrystalline and nanocrystalline structure in EP962 nickel hi gh alloy was studied. A microstructure with 0.05-0.08 mu m grains can be obtained during recrystallization on hot deformation. An alloy with 0.25 mu m grains exhibits superplasticity at 800 degrees C (0.7 T-m.p .) which is 200-275 degrees C lower compared to the common fine-grain state.