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Effect of back pressure during equal-channel angular pressing on deformation-induced porosity in copper

Version 2 2024-06-04, 05:21
Version 1 2015-08-20, 15:35
journal contribution
posted on 2024-06-04, 05:21 authored by J Ribbe, G Schmitz, H Rösner, Rimma LapovokRimma Lapovok, Y Estrin, G Wilde, SV Divinski
The effect of back pressure during equal channel angular pressing (ECAP) on deformation-induced porosity is investigated. While percolating porosity was found after 4 ECAP passes in the absence of back pressure, no percolation was detected when a back pressure of 200 MPa was applied. However, after ECAP with back pressure continued to 8 passes, percolating porosity did appear. The nature of the percolating porosity developed in severely deformed materials is discussed.

History

Journal

Scripta materialia

Volume

68

Pagination

925-928

Location

Amsterdam, The Netherlands

ISSN

1359-6462

Language

eng

Publication classification

C Journal article, C1.1 Refereed article in a scholarly journal

Copyright notice

2013, Acta Materialia

Issue

12

Publisher

Elsevier