Akram, S., Babutskyi, A., Chrysanthou, A., Montalvão, D. and Pizurova, N., 2019. Effect of Alternating Magnetic Field on the Fatigue Behaviour of EN8 Steel and 2014-T6 Aluminium Alloy. Metals, 9 (9), 984.
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Official URL: https://www.mdpi.com/journal/metals
DOI: 10.3390/met9090984
Abstract
The application of an alternating magnetic field (0.54 T) was observed to lead to an improvement in the fatigue endurance and an increase in Vickers microhardness and tensile strength of both EN8 steel and AA2014-T6 alloy. Fractography using scanning electron microscopy showed evidence of more ductile fracture features after treatment in contrast to untreated samples. The results of X-ray diffraction indicated formation of more compressive residual stresses following treatment; while examination by transmission electron microscopy showed evidence of fewer dislocations. In the case of the AA2014-T6 alloy; GP zones were also generated by the alternating magnetic field. However; the temperature increase during the treatment was too low to explain these observations. The results were attributed to the non-thermal effect of the alternating magnetic field treatment that led to depinning and movement of dislocations and secondary precipitation of copper.
Item Type: | Article |
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ISSN: | 2075-4701 |
Uncontrolled Keywords: | magnetic field treatment; steel; aluminium; dislocations; precipitation hardening |
Group: | Faculty of Science & Technology |
ID Code: | 32669 |
Deposited By: | Symplectic RT2 |
Deposited On: | 27 Aug 2019 14:32 |
Last Modified: | 14 Mar 2022 14:17 |
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