Edge-to-edge matching and its applications - Part I. Application to the simple HCP/BCC system


Autoria(s): Zhang, M. X.; Kelly, P. M.
Contribuinte(s)

Gunter Gottstein

Subhash Mahajan

Data(s)

01/01/2005

Resumo

The edge-to-edge matching crystallographic model has been used to predict all the orientation relationships (OR) between crystals that have simple hexagonal close packed (HCP) and body-centered cubic (BCC) structures. Using the critical values for the interatomic spacing misfit along the matching directions and the cl-value mismatch between matching planes, the model predicted all the four common ORs, namely the Burgers OR, the Potter OR, the Pitsch-Schrader OR and the Rong Dunlop OR, together with the corresponding habit planes. Taking the c(H)/a(H) and a(H)/a(B) ratios as variables, where H and B denote the HCP and BCC structures respectively, the model also predicted the relationship between these variables and the four ORs. These predictions are perfectly consistent with the published experimental results. As was the case in the FCC/BCC system, the edge-to-edge matching model has been shown to be a powerful tool for predicting the crystallographic features of diffusion-controlled phase transformations. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Identificador

http://espace.library.uq.edu.au/view/UQ:76359

Idioma(s)

eng

Publicador

Pergamon-Elsevier Science Ltd

Palavras-Chave #Orientation Relationship #Habit Plane #Interface Structure #Phase Transformation #Edge-to-edge Matching #Ideal Epitaxial Configurations #Interphase Boundary Structure #Fcc-bcc Boundaries #Percent Cr Alloy #Atomic Site Correspondence #Structural Ledge Theories #Lattice Plane Analysis #Percent Nb Alloy #Invariant Line #Materials Science, Multidisciplinary #Metallurgy & Metallurgical Engineering #C1 #291302 Physical Metallurgy #670899 Other non-ferrous metals (e.g. copper, zinc)
Tipo

Journal Article