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Experimental observation of 12 α variants inherited from one β grain in a Zr alloy

Authors
Journal
Journal of Nuclear Materials
0022-3115
Publisher
Elsevier
Volume
440
Identifiers
DOI: 10.1016/j.jnucmat.2013.05.053

Abstract

Abstract Local crystallographic orientation characteristics of a Zr alloy after β cooling are investigated by electron backscatter diffraction (EBSD) technique. All misorientation peaks and corresponding rotation axes predicted by Burgers relationship are exclusively verified for the obtained basket-weave structure. Furthermore, by correlating microstructures and crystallographic orientations, all 12 possible α variants inherited from one prior β grain are definitely revealed. It is believed that excessive β grain growth in the Zr alloy is responsible for the weak or absence of variant selection during β cooling.

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