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research article
About the possibility of grain boundary engineering via hot-working in a nickel-base superalloy
2010
Microstructures, and especially grain boundary populations, are characterized in a γ/γ′ nickel-base superalloy submitted to various thermomechanical treatments involving hot deformation and subsequent supersolvus annealing. The resulting microstructures consist of equiaxed grains, including twins. Both the grain size and the amount of twin boundaries are dependent on the processing parameters, which demonstrates that grain boundary engineering is applicable to those materials. The mechanisms involved are discussed, taking into account the hot-working conditions. © 2010 Acta Materialia Inc.
Type
research article
Authors
Publication date
2010
Published in
Volume
62
Start page
851
End page
854
Subjects
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
November 14, 2014
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