Self accomodation morphology of martensite variants in Zr---2.5wt%Nb alloy

Srivastava, D and Madangopal, K and Banerjee, S and Ranganathan, S (1993) Self accomodation morphology of martensite variants in Zr---2.5wt%Nb alloy. In: Acta Metallurgica et Materialia, 41 (12). pp. 3445-3454.

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Abstract

The role of self accomodation of the different mertensite variants controlling the morphologies of the Zr---2.5wt%Nb alloy martensite has been examined. Three distinct types of grouping of martensite variants have been found to be predominantly present. Crystallographic descriptions of these groups have been provided and the degrees of self accomodation for these have been estimated and compared with those corresponding to other possible variant groupings around the symmetry axes of the parent phase. The frequently observed 3-variant group, which shows an “indentation mark” morphology when viewed along left angle bracket111right-pointing angle bracketβ directions in the transmission electron microscope, has been seen to have the highest degree of self accomodation amongst the cases considered. Based on the observations made, a growth sequence leading to the formation of the final martensitic structure has been proposed.

Item Type:	Journal Article
Publication:	Acta Metallurgica et Materialia
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	03 Mar 2011 04:41
Last Modified:	03 Mar 2011 04:41
URI:	http://eprints.iisc.ac.in/id/eprint/35737

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