Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1548327 | Progress in Natural Science: Materials International | 2011 | 5 Pages |
Abstract
Microstructural evolution and micro-hardness of a directionally solidified Ni-base superalloy subjected to shot-peening during cyclic recovery heat treatment was studied. It was found that γ' dissolved and dislocation annihilation occurred during heating, while γ' re-precipitated when temperature dropped. Due to the formation of a stable dislocation network at γ/γ' interface, full recovery and therefore complete elimination of the surface recrystallization are difficult by the present cyclic recovery heat treatment.
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Authors
Guang XIE, Jian ZHANG, Lang-hong LOU,