The Half-Cycle Slip Activity of Persistent Slip Bands in Polycrystals

Abstract:

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The development of the volume fraction of cumulated persistent slip bands (PSBs) in cyclically deformed nickel polycrystals was investigated in dependence on the number of cycles using scanning electron microscopy (SEM) and atomic force microscopy (AFM). It was shown that there is a large scatter of the volume fraction of PSBs from grain to grain. Three different tendencies for the development of the volume fraction with increasing number of cycles were distinguished. It was shown that there is a correlation of the orientation of the primary slip systems with the volume fraction of cumulated PSBs and the activation of PSBs during half-cycle deformation.

Info:

Periodical:

Materials Science Forum (Volumes 567-568)

Edited by:

Pavel Šandera

Pages:

123-127

DOI:

10.4028/www.scientific.net/MSF.567-568.123

Citation:

A. Weidner et al., "The Half-Cycle Slip Activity of Persistent Slip Bands in Polycrystals", Materials Science Forum, Vols. 567-568, pp. 123-127, 2008

Online since:

December 2007

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$35.00

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[5] [15] [25] [35] [45] 1000 6000 11000 16000 21000 26000 31000 36000 number of cycles fPSB(cum).

N1 N2 N3 T2 T3 T1 -2.

[2] [4] [6] [8] [10] [12] [14] 1000 6000 11000 16000 21000 26000 31000 36000 number of cycles fPSB(hc) T1 T2 T3 b) N1 N2 N3 a).

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