Deakin University
Browse

File(s) under permanent embargo

Optimisation of interface formation by shear inclination: example of aluminium-cooper hybrid produced by ECAP with back-pressure

journal contribution
posted on 2018-05-15, 00:00 authored by Alexander Medvedev, Rimma Lapovok, E Koch, H W Höppel, M Göken
© 2018 Elsevier Ltd Hybrid materials present a convenient way of combining properties of more than one material in one product. However, there are problems associated with such manufacturing, particularly, in relation to the properties of the interface between components. Intermetallic compounds can potentially form in this area, whose size and composition can have a profound effect on mechanical properties of the product. In this work, we investigate the effect of temperature, mutual arrangement and hydrostatic pressure on the quality of the interface between Al and Cu parts, processed simultaneously by severe plastic deformation. We show that three intermetallic compounds - θ-Al2Cu, ζ2-Al3Cu4-δand γ1-Al4Cu9- form on the interface. It is shown that the formation of these phases on the interface between aluminium and copper highly depends on the combination of diffusion and recrystallization process.

History

Journal

Materials and design

Volume

146

Pagination

142 - 151

Publisher

Elsevier

Location

Amsterdam, The Netherlands

ISSN

0264-1275

eISSN

1873-4197

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2018, Elsevier