Role of grain/Phase boundary nature on the formation of hydrides in Zr-2.5% Nb alloy

Mani Krishna, K. V. ; Srivastava, D. ; Dey, G. K. ; Hiwarkar, V. ; Samajdar, I. ; Banerjee, S. (2011) Role of grain/Phase boundary nature on the formation of hydrides in Zr-2.5% Nb alloy Journal of Nuclear Materials, 414 (2). pp. 270-275. ISSN 0022-3115

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.jnucmat.2011.04.003

Abstract

Hydride formation in a fully recrystallized Zr-2.5%Nb alloy having equiaxed grains of α and β was studied. Primarily the electron back scatter diffraction (EBSD) technique was used for the characterization of the hydrides in conjunction with optical and transmission electron microscopy. Hydrides were found to have preferentially formed along the α/β interfaces. Microtexture measurements showed that the orientation relationship (OR) between α and δ -hydride phase was (0 0 0 1)α || (1 1 1)δ and [2110]α || [1 1 0]δ. It was shown that the hydrides have higher preference to form along such α/β interfaces which have one of the low index planes of the β phase constituting the interface.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:82262
Deposited On:10 Feb 2012 04:58
Last Modified:10 Feb 2012 04:58

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