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Light Pre-deformation induced misorientation of grain boundary bcc-precipitates from the Kurdjumov-Sacks relationship in a Ni−Cr alloy

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Abstract

Crystallography of grain boundary (GB) bcc-precipitates formed in a lightly pre-deformed fcc-matrix phase was examined in a Ni-43Cr alloy by EBSD with emphasis on a misorientation from the Kurdjumov-Sachs orientation relationship. The misorientation of GB bcc-precipitates became somewhat larger when the matrix phase was lightly pre-deformed. The GB bcc-precipitates were preferentially formed at the intersection of geometrically necessary dislocation boundaries (GNB) with grain boundaries. In contrast, the pre-deformation did not influence the misorientation of intragranular bcc-precipitates. The preferential precipitation and the increased misorientation at the GNB-GB intersection were discussed.

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Authors and Affiliations

  1. Steel Research Center, National Institute for Materials Science, 1-2-1 Sengen, 305-0047, Tsukuba, Japan

    Yoshitaka Adachi & Kaneaki Tsuzaki

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  1. Yoshitaka Adachi
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  2. Kaneaki Tsuzaki
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Correspondence to Yoshitaka Adachi.

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Adachi, Y., Tsuzaki, K. Light Pre-deformation induced misorientation of grain boundary bcc-precipitates from the Kurdjumov-Sacks relationship in a Ni−Cr alloy. Met. Mater. Int. 11, 341–349 (2005). https://doi.org/10.1007/BF03027503

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