Precipitate Free Zones along Recrystallization Grain Boundaries during Creep in a Directionally Solidified Superalloy

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Microstructural evolution of an experimental directionally solidified superalloy with local recrystallization during creep was studied. Precipitate free zones (PFZs) were formed along the recrystallization grain boundaries that are perpendicular to the applied stress. The formation mechanisms of PFZs and creep cracks associated with PFZs were discussed based on the experimental observation.

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Periodical:

Materials Science Forum (Volumes 546-549)

Edited by:

Yafang Han et al.

Pages:

1235-1240

Citation:

L. Wang et al., "Precipitate Free Zones along Recrystallization Grain Boundaries during Creep in a Directionally Solidified Superalloy", Materials Science Forum, Vols. 546-549, pp. 1235-1240, 2007

Online since:

May 2007

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$41.00

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