Microstructure and fatigue properties of the ultrafine-grained AM60 magnesium alloy processed by Equal Channel Angular Pressing
- Author(s)
- O.B. Kulyasova, Rinat K. Islamgaliev, Bernhard Mingler, Michael Zehetbauer
- Abstract
This paper reports on the microstructures and fatigue properties of the ultrafine-grained 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. For the lowest ECAP temperature, the mean grain size is as small as 1 μm which leads to an increase in the fatigue endurance limit by 70% in comparison to coarse-grained alloy. The temperature of ECAP not only governs the grain size 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, Austrian Research Centers GmbH (ARC Seibersdorf)
- Journal
- Materials Science and Engineering A: Structural Materials: Properties, Microstructures and Processing
- Volume
- 503
- Pages
- 176-180
- No. of pages
- 5
- ISSN
- 0921-5093
- DOI
- https://doi.org/10.1016/j.msea.2008.03.057
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103023 Polymer physics, 210006 Nanotechnology, 103018 Materials physics
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/microstructure-and-fatigue-properties-of-the-ultrafinegrained-am60-magnesium-alloy-processed-by-equal-channel-angular-pressing(3126e59d-781c-4063-82f5-15366b209b77).html