In Situ TEM Observations of Deformation Processes in Nanocrystalline Pd

Abstract:

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In this study we show that in-situ tensile tests performed in a transmission electron microscope (TEM) in combination with high-resolution TEM are feasible, and, that this method is appropriate to elucidate the deformation processes in nanocrystalline materials directly. First results on nanocrystalline Pd produced by repeated cold-rolling with intermediate folding of metal sheets are presented revealing that the material ruptured during the in-situ tensile tests along grain boundaries. Deformation twinning was observed in grains next to the crack indicating that the deformation processes must have originated from the grain boundaries.

Info:

Periodical:

Materials Science Forum (Volumes 584-586)

Edited by:

Yuri Estrin and Hans Jürgen Maier

Pages:

464-469

DOI:

10.4028/www.scientific.net/MSF.584-586.464

Citation:

H. Rösner and G. Wilde, "In Situ TEM Observations of Deformation Processes in Nanocrystalline Pd", Materials Science Forum, Vols. 584-586, pp. 464-469, 2008

Online since:

June 2008

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Price:

$35.00

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