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Grain Boundary Sliding Kinetics and Stress Relaxation Phenomena in Ni Alloys
Published online by Cambridge University Press: 15 February 2011
Abstract
Internal friction measurements have been performed on Ni-20 wt% Cr alloys containing trace additions of Ce ranging from 0 to 180 at ppm, in order to determine grain boundary sliding kinetics and associated stress relaxation phenomena. Two anelastic relaxation peaks have been observed corresponding to intrinsic grain boundary sliding between carbide precipitates and to macroscopic sliding with elastic accommodation at triple points. The effects of Ce on these grain boundary phenomena and resulting alloy ductilities are also presented.
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- Copyright © Materials Research Society 1991
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