Deformation Mechanisms and Microstructural Evolution of γ + γ′ Duplex Aggregates Generated During Thermomechanical Processing of Nickel-Base Superalloys

2016 ◽  
pp. 487-496
Author(s):  
Beijiang Zhang ◽  
Guangpu Zhao ◽  
Wenyun Zhang ◽  
Guohua Xu ◽  
Guohua Xu ◽  
...  
Keyword(s):  
Microstructural Evolution ◽  
Thermomechanical Processing ◽  
Deformation Mechanisms ◽  
Nickel Base Superalloys ◽  
Nickel Base

scholarly journals Local Order and Associated Deformation Mechanisms in the γ Phase of Nickel Base Superalloys

1996 ◽  
Vol 7 (1) ◽  
pp. 65-84 ◽  
Author(s):  
Nicole Clement ◽  
Armand Coujou ◽  
Yvonne Calvayrac ◽  
Francois Guillet ◽  
Didier Blavette ◽  
...  
Keyword(s):  
Deformation Mechanisms ◽  
Local Order ◽  
Nickel Base Superalloys ◽  
Nickel Base

Influence of Thermo-Mechanical Processing on the Microstructure of Beryllia Dispersed Nickel Alloys

1973 ◽  
Vol 31 ◽  
pp. 184-185
Author(s):  
M.S. Grewal ◽  
S.A. Sastri ◽  
N.J. Grant
Keyword(s):  
High Temperature ◽  
Nickel Alloys ◽  
Thermomechanical Processing ◽  
Cold Work ◽  
High Temperature Strength ◽  
Strengthening Effect ◽  
Mechanical Processing ◽  
Uniform Dispersion ◽  
Oxide Particles ◽  
Nickel Base

Currently there is a great interest in developing nickel base alloys with fine and uniform dispersion of stable oxide particles, for high temperature applications. It is well known that the high temperature strength and stability of an oxide dispersed alloy can be greatly improved by appropriate thermomechanical processing, but the mechanism of this strengthening effect is not well understood. This investigation was undertaken to study the dislocation substructures formed in beryllia dispersed nickel alloys as a function of cold work both with and without intermediate anneals. Two alloys, one Ni-lv/oBeo and other Ni-4.5Mo-30Co-2v/oBeo were investigated. The influence of the substructures produced by Thermo-Mechanical Processing (TMP) on the high temperature creep properties of these alloys was also evaluated.

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