Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy
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Dec 01, 2015
About this article
Published Online: Dec 01, 2015
Page range: 789 - 794
Received: Jun 26, 2015
Accepted: Aug 27, 2015
DOI: https://doi.org/10.1515/nuka-2015-0142
Keywords
© 2015 Radosław Zaleski et al., published by De Gruyter Open
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.
The effect of roller burnishing on Vickers’ hardness and positron lifetimes in the AZ91HP magnesium alloy was studied. The microhardness increases with an increase in the burnishing force and with a decrease in the feed. The comparison of various methods of analysis of positron annihilation lifetime (PAL) spectra allowed identification of two components, which are related to solute-vacancy complexes and vacancy clusters, respectively. It was found that the increase in microhardness was related to the increase in the concentration of vacancy clusters.