Deformed microstructures of two-phase Zr-2.5Nb alloy: effects of the second phase hardness

Sahoo, S. K. ; Hiwarkar, V. D. ; Jain, L. ; Samajdar, I. ; Pant, P. ; Dey, G. K. ; Srivastav, D. ; Tewari, R. ; Banerjee, S. (2010) Deformed microstructures of two-phase Zr-2.5Nb alloy: effects of the second phase hardness Journal of Nuclear Materials, 404 (3). pp. 222-230. ISSN 0022-3115

Full text not available from this repository.

Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00223...

Related URL: http://dx.doi.org/10.1016/j.jnucmat.2010.07.028

Abstract

Two types, A and B, of Zr-2.5Nb samples were subjected to compression tests. Both samples consisted of similar microstructure - hexagonal closed packed (hcp) α phase (the primary phase) and grain boundary bcc (body centered cubic) βphase. However, the hardness of the β phase differed between the samples - respectively being hard (sample A) and soft (sample B) relative to the primary phase. This difference was caused by the presence of fine ω precipitates. The relative hardness of β phase determined almost all aspects of deformed microstructure developments. In sample A, the primary phase had higher lattice strain and in-grain misorientation developments. In sample B, on the other hand, the softer β phase was clearly linked to more deformation twinning and associated grain size refinement and 'texturing' of the hcp α phase.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:9654
Deposited On:02 Nov 2010 11:17
Last Modified:14 May 2011 05:05

Repository Staff Only: item control page