Effects of ECAP with One Pass Severe Deformation on Microhardness, Texture, and Corrosion Behavior of AA1370 Aluminum Alloy Wire

Youcef Hadj Ali H., Zazi N., DURMUŞ H., Chopart J.

Physics of Metals and Metallography, vol.122, no.13, pp.1382-1390, 2021 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 122 Issue: 13
  • Publication Date: 2021
  • Doi Number: 10.1134/s0031918x20140021
  • Journal Name: Physics of Metals and Metallography
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Compendex, INSPEC, Metadex
  • Page Numbers: pp.1382-1390
  • Keywords: AA1370 aluminum alloy wire, corrosion, ECAP process, hardness, intermetallic particles, microporosities, texture
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

Abstract: In this paper, We investigate the effects of one pass severe deformation, obtained by equal channel angular pressing (ECAP) process, using dies with channel angles of 90° and 120°, on hardness, texture, and corrosion behavior, of AA1370 aluminum alloy wire. A severe deformation, by ECAP process, leads to athinning of several diffraction peaks and an increase of their angular values; modifies the texture of material from pseudo-texture to mix texture; reduces the microhardness; modifies a part of localized corrosion towards generalized one; shifts the corrosion potential to negative values; and increases the values of open circuit potential (OCP). The deformation by ECAP process induces fragmentation of parts of intermetallic particles, and reduction of grains size. The imprisoned air, between the channel wall of the die and the wire, creates microporosities in the deformed samples.