Microstructure and Phase Composition of the Ag-Al Film Wear Track: Through-Thickness Characterization by Advanced Electron Microscopy

• Autorzy: Kryshtal O. , Kruk A. , Mao F. , Taher M. , Jansson U. , Czyrska-Filemonowicz A.

Identyfikatory

DOI

10.24425/amm.2019.126245

• Języki publikacji: EN

Abstrakty

EN

Analytical transmission electron microscopy has been applied to characterize the microstructure, phase and chemical composition of the Ag–Al wear track throughout its thickness down to the atomic level. Microscopy findings have been correlated with Ag–Al film tribological properties to understand the effect of the hexagonal solid solution phase on the tribological properties of this film. Ag–25Al (at.%) films have been produced by simultaneous magnetron sputtering of components in Ar atmosphere under 1 mTorr pressure and subjected to pin-on-disc tribological tests. It has been shown that hcp phase with (001) planes aligned parallel to the film surface dominates both in as-deposited and in tribofilm areas of the Ag–Al alloy film. Possible mechanisms of reduced friction in easily oxidized Ag–Al system are discussed and the mechanism based on readily shearing basal planes of the hcp phase is considered as the most probable one.

Słowa kluczowe

EN

Ag–Al alloy; TEM; EDX; hexagonal phase; electrical contact

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 251--256
• Opis fizyczny: Bibliogr. 15 poz., fot., rys.

Twórcy

autor

Kryshtal O.

• AGH University of Science and Technology (AGH-UST), International Centre of Electron Microscopy for Material Science and Faculty of Metals Engineering and Industrial Computer Science, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Kruk A.

• AGH University of Science and Technology (AGH-UST), International Centre of Electron Microscopy for Material Science and Faculty of Metals Engineering and Industrial Computer Science, Al. Mickiewicza 30, 30-059 Kraków, Poland

autor

Mao F.

• Uppsala University, Department of Chemistry-Ångström Laboratory, Uppsala, Sweden

autor

Taher M.

• Uppsala University, Department of Chemistry-Ångström Laboratory, Uppsala, Sweden
• Insulation and Materials Technology, ABB AB, Corporate Research, Västerås, Sweden

autor

Jansson U.

• Uppsala University, Department of Chemistry-Ångström Laboratory, Uppsala, Sweden

autor

Czyrska-Filemonowicz A.

• AGH University of Science and Technology (AGH-UST), International Centre of Electron Microscopy for Material Science and Faculty of Metals Engineering and Industrial Computer Science, Al. Mickiewicza 30, 30-059 Kraków, Poland

Bibliografia

• [1] F. Mao, U. Wiklund, A. M. Andersson, U. Jansson, J. Mater. Sci. 50, 6518 (2015).
• [2] F. Mao, M. Taher , O. Kryshtal, A. Kruk, A. Czyrska-Filemonowicz, M. Ottosson, A. M. Andersson, U. Wiklund, U. Jansson, ACS Applied Materials & Interfaces 8, 30635 (2016).
• [3] F. Mao, Doctoral thesis, Synthesis, Characterization, and Evaluation of Ag-based Electrical Contact Materials, Uppsala University, Sweden (2017). http://uu.diva-portal.org/smash/record.jsf?pid=diva2%3A1089132&dswid=-4657 accessed: 08 May 2018.
• [4] M. Taher, F. Mao, P. Berastegui, A. M. Andersson, U. Jansson, Tribology International 119, 680 (2018).
• [5] D. H. Buckley, R. L. Johnson, Wear 11, 405 (1968).
• [6] E. Rabinowicz, Wear 159, 89 (1992).
• [7] P. A. Stadelmann. JEMS Java Electron Microscopy Software. http://www.jems-saas.ch accessed: 08 May 2018.
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• [13] H. Okamoto, Phase Diagrams for Binary Alloys. Desk Handbook, ASM International, USA (2000).
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Uwagi

EN

1. The study has been financially supported by the Ministry of Science and Higher Education (project no. 3627/H2020/2016/2) and EIT KIC InnoEnergy (41-2014-IP119-COMET). The valuable contribution of the partners within the COMET project is gratefully acknowledged. The authors would like to thank Mr. Adam Gruszczyński, MSc. (AGH-UST) for TEM lamellae preparation.

PL

2. Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).