Structure and Fatigue Properties of the Mg Alloy AM60 Processed by ECAP

Author(s)
Rinat K. Islamgaliev, O.B. Kulyasova, Bernhard Mingler, Michael Zehetbauer, Alexander Minkow
Abstract

This paper reports on the microstructures and fatigue properties of ultrafine-grained (UFG) AM60 magnesium alloy processed by equal channel angular pressing (ECAP) at various temperatures. After ECAP processing, samples exhibited an increase in fatigue endurance limit, which correlates well with a decrease in grain size. In case of lowest ECAP temperature, the mean grain size is as small as 1 2m which leads to an increase in fatigue endurance limit by 70 % in comparison to coarse-grained alloy. The temperature of ECAP not only governs the grain size and misorientation angles of grain boundaries but also the volume fraction of precipitates, thus affecting the probability of twinning and grain growth after fatigue treatment.

Organisation(s)
Physics of Nanostructured Materials
External organisation(s)
Ufa State Aviation Technical University, Universität Ulm
Journal
Materials Science Forum
Volume
584-586
Pages
803-808
No. of pages
6
ISSN
0255-5476
DOI
https://doi.org/10.4028/www.scientific.net/MSF.584-586.803
Publication date
2008
Peer reviewed
Yes
Austrian Fields of Science 2012
103023 Polymer physics, 210006 Nanotechnology, 103018 Materials physics
Portal url
https://ucris.univie.ac.at/portal/en/publications/structure-and-fatigue-properties-of-the-mg-alloy-am60-processed-by-ecap(99ee26b8-c95f-41c6-a876-fa61cf2e4767).html