Improvement of the wear resistance of nickel-aluminium bronze and 2014-T6 aluminium alloy by application of alternating magnetic field treatment

0547290 - ÚFM 2022 RIV CH eng J - Journal Article
Akram, S. - Babutskyi, A. - Chrysanthou, A. - Montalvão, D. - Whiting, M. J. - Pizúrová, Naděžda
Improvement of the wear resistance of nickel-aluminium bronze and 2014-T6 aluminium alloy by application of alternating magnetic field treatment.
Wear. Roč. 480 - 481, SEP (2021), č. článku 203940. ISSN 0043-1648. E-ISSN 1873-2577
Research Infrastructure: CEITEC Nano - 90041
Institutional support: RVO:68081723
Keywords : Magnetic field treatment * Nickel-aluminium bronze * Aluminium * Precipitation hardening
OECD category: Materials engineering
Impact factor: 4.695, year: 2021
Method of publishing: Limited access
https://www.sciencedirect.com/science/article/pii/S004316482100329X?via%3Dihub

The present work has used an alternating magnetic field treatment at ambient temperature to improve the wear resistance of nickel-aluminium bronze and aluminium alloy 2014-T6. Pin-on-disc wear tests under lubricating conditions using a AISI52100 steel ball bearing as the counter face material have shown reduction in the width and depth of wear scars as well as lower values of the coefficient of friction following the treatment. The improved wear properties have been attributed to increased precipitation of kappa IV in the case of the nickelaluminium bronze and of GP zones as well as theta for AA2014-T6. Transmission electron microscopy also revealed changes in the dislocation distribution, while X-ray diffraction showed changes in the residual stress for both alloys. The mechanism leading to these changes is discussed by consideration of the soft ferromagnetic properties of the nickel-aluminium bronze and the paramagnetic nature of AA2014.
Permanent Link: http://hdl.handle.net/11104/0323854