Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Zaleski Radosław; Zaleski Kazimierz; Gorgol Marek

doi:10.1515/nuka-2015-0142

Nukleonika (Dec 2015)

Positron annihilation lifetime spectroscopy study of roller burnished magnesium alloy

Zaleski Radosław,
Zaleski Kazimierz,
Gorgol Marek

Affiliations

Zaleski Radosław: Department of Nuclear Methods, Institute of Physics, Maria Curie-Skłodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 6145, Fax: +48 81 537 619
Zaleski Kazimierz: Faculty of Mechanical Engineering, Lublin University of Technology, 36 Nadbystrzycka Str., 20-618 Lublin, Poland
Gorgol Marek: Department of Nuclear Methods, Institute of Physics, Maria Curie-Skłodowska University, 1 M. Curie-Skłodowskiej Sq., 20-031 Lublin, Poland, Tel.: +48 81 537 6145, Fax: +48 81 537 619

DOI: https://doi.org/10.1515/nuka-2015-0142
Journal volume & issue: Vol. 60, no. 4
pp. 789 – 794

Abstract

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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.

Published in Nukleonika

ISSN: 0029-5922 (Print); 1508-5791 (Online)
Publisher: Sciendo
Country of publisher: Poland
LCC subjects: Science
Website: https://sciendo.com/journal/NUKA

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