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Evolution of microstructure in the bcc-hcp martensitic phase transition in zirconium

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Original languageEnglish
Title of host publicationMICROSCOPIC SIMULATION OF INTERFACIAL PHENOMENA IN SOLIDS AND LIQUIDS
Editors Phillpot, PD Bristowe, DG Stroud, Smith
Place of PublicationWARRENDALE
PublisherMaterials Research Society
Pages281-286
Number of pages6
ISBN (Print)1-55899-397-5
StatePublished - 1998
EventSymposium on Microscopic Simulation of Interfacial Phenomena in Solids and Liquids, at the 1997 MRS Fall Meeting - BOSTON, Morocco
Duration: 1 Dec 19974 Dec 1997

Publication series

NameMATERIALS RESEARCH SOCIETY SYMPOSIUM PROCEEDINGS
PublisherMATERIALS RESEARCH SOCIETY
Volume492
ISSN (Print)0272-9172

Conference

ConferenceSymposium on Microscopic Simulation of Interfacial Phenomena in Solids and Liquids, at the 1997 MRS Fall Meeting
CountryMorocco
Period1/12/974/12/97

Abstract

We report molecular dynamics simulations of the martensitic phase transition from bcc to hcp in zirconium. We show the evolution of a laminated twinned microstructure, in which some plastic deformation has occurred to rotate the twins manifested as basal stacking faults. This rotation is such as to alter the twinning angle from the 60 degrees between the hcp variants to the 61.5 degrees angle of the low energy (10 (1) over bar 1) twins. These are thus identified as a cause of microscopic irreversibility in the transition.

ID: 19413657