Tribological Assessment of Cold Sprayed Aluminum-Quasicrystal Composite Coatings

Wednesday, May 24, 2023: 1:40 PM
303A (Quebec City Convention Centre)
Mr. Reza Jafari , Tampere University, Tampere, Finland
Dr. Jan Cizek , Institute of Plasma Physics of the Czech Academy of Sciences, Prague, Czech Republic, Czech Technical University, Faculty of Mechanical Engineering, Prague, Czech Republic
Dr. Frantisek Lucak , Institute of Plasma Physics of the Czech Academy of Sciences, Prague, Czech Republic
Dr. Ladislav Cvrcek , Czech Technical University, Faculty of Mechanical Engineering, Prague, Czech Republic
Mr. Matej Buril , Czech Technical University, Faculty of Mechanical Engineering, Prague, Czech Republic
Mr. Jan Walter , Czech Technical University, Faculty of Mechanical Engineering, Prague, Czech Republic
Dr. Jarkko Kiilakoski , Saint-Gobain Coating Solutions, Avignon, France
Dr. Mari Honkanen , Tampere University, Tampere, Finland
Prof. Minnamari Vippola , Tampere University, Tampere, Finland, Tampere University, Tampere, Finland
Dr. Heli Koivuluoto , Tampere University, Tampere, Finland
The cold spray (CS) technology has proven enormous potential in the production of composite coatings, enabling production of coatings with superior qualities such as enhanced tribological behavior. This study aimed to investigate the tribological properties of CS Al-based composite coatings reinforced by quasicrystalline (QC) particles. The composite coatings were produced by high pressure cold spraying of two different Al alloy feedstock materials, Al6061 and Al2024, mixed with Al-based QC particles (Al-Cr-Fe-Cu) at different Al/QC ratios. A pin-on-disc tribometer was used to evaluate the wear resistance of the CS composite coatings and their Al alloy counterparts at room temperature. In addition, the coatings were characterized prior and after the wear testing using scanning electron microscopy, X-ray diffraction, and an optical profilometer to determine the link between the microstructural characteristics and the wear mechanisms. The results confirmed that the addition of QC particles into the structure of the coatings increases their resistance to wear deterioration.

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