☆ 4.7 Article

High strain rate induced localized amorphization in cubic BN/NiCrAl nanocomposite through high velocity impact

SCRIPTA MATERIALIA (2011)

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期刊

SCRIPTA MATERIALIA
卷 65, 期 7, 页码 581-584

出版社

PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.scriptamat.2011.06.030

关键词

Nanocomposite; Ni-based alloy; Cold spray; High strain rate deformation; Amorphization

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Nanoscience & Nanotechnology Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

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  1. National Science Foundation [50725101]

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Localized amorphous layer induced by a high-velocity impact in a cubic BN particle-reinforced face-centered cubic Ni (Cr, Al) nanocomposite was observed by high-resolution transmission electron microscopy. The Ni-based amorphous layer, which had a thickness ranging from to similar to 3 to similar to 8 nm, was located at the cBNp/NiCrAl interface and was surrounded by the crystalline Ni-based alloy. These Ni-based alloy crystals exhibited a preferred orientation with the {1 1 1} planes frequently parallel to the interfaces of cBN/NiCrAl. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

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