Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Radosław Zaleski; Kazimierz Zaleski; Marek Gorgol

doi:10.1515/nuka-2015-0142

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Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Nukleonika

Volume 60 (2015): Issue 4 (December 2015)

By: Radosław Zaleski, Kazimierz Zaleski and Marek Gorgol

Open Access

|Dec 2015

Abstract

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.

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Articles in this issue

DOI: https://doi.org/10.1515/nuka-2015-0142 | Journal eISSN: 1508-5791 | Journal ISSN: 0029-5922

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Language: English

Page range: 789 - 794

Submitted on: Jun 26, 2015

Accepted on: Aug 27, 2015

Published on: Dec 1, 2015

Published by: Institute of Nuclear Chemistry and Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

AZ91HP magnesium alloy,

defects,

positron lifetime annihilation spectroscopy (PALS),

roller burnishing,

Vickers’ hardness test

Related subjects:

Chemistry,

Nuclear chemistry,

Physics,

Astronomy and astrophysics,

Physics, other

© 2015 Radosław Zaleski, Kazimierz Zaleski, Marek Gorgol, published by Institute of Nuclear Chemistry and Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 60 (2015): Issue 4 (December 2015)