Department of Physics and Materials Science, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand; National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathum Thani, 12120, Thailand; Department of Industrial Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai, 50200, Thailand
Type
Article
Source Title
Archives of Metallurgy and Materials
ISSN
17333490
Year
2015
Volume
60
Issue
2
Page
887-890
Open Access
All Open Access, Gold
Publisher
Committee of Metallurgy
DOI
10.1515/amm-2015-0224
Format
PDF
Abstract
Equal channel angular pressing (ECAP) is a technique that creates a high accumulated strain in metals and results in ultrafine-grained structure. In this study, Al-5Zn-0.02In was processed by ECAP at a room temperature using route Bc through an ECAP die (press angle of Φ = 100° and Ψ = 20°). The samples were subjected to ECAP with 1, 2, 3 and 4 passes. The processed specimens were characterized using electron backscatter diffraction (EBSD). The results confirmed the grain refinement of the alloy after ECAP to an average grain size less than 5 μm after 4-pass ECAP. The microhardness test shows that the hardness increased with the number of passes. The hardness of the cross-sectional area of the sample was similar to that tested along the pressing direction.
Office of the Higher Education Commission; National Science and Technology Development Agency; Thailand Research Fund; Rangeland Research Institute, University of Alberta
