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

A. Weidner; W. Tirschler; C. Blochwitz; Werner Skrotzki

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

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HomeMaterials Science ForumMaterials Science Forum Vols. 567-568The Half-Cycle Slip Activity of Persistent Slip...

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

Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 567-568)

Pages:

123-127

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.567-568.123

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Online since:

December 2007

Authors:

A. Weidner, W. Tirschler, C. Blochwitz, Werner Skrotzki

Keywords:

Half-Cycle Slip Activity, Nickel, Persistent Slip Band (PSB), Polycrystalline, Volume Fraction of PSBs

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References

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

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N1 N2 N3 T2 T3 T1 -2.

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