Ti2AlC coatings deposited by High Velocity Oxy-Fuel spraying
Journal article, 2008

High Velocity Oxy-Fuel has been utilized to spray coatings from Ti2AlC (MAXTHAL 211 (R)) powders. X-ray diffraction showed that the coatings consist predominantly of Ti2AlC with inclusions of the phases Ti3AlC2, TiC, and Al-Ti alloys. The fraction of Ti2AlC in coatings sprayed with a powder size of 38 mu m was found to increase with decreasing power of the spraying flame as controlled by the total gas flow of H-2 and O-2. A more coarse powder (56 mu m) is less sensitive to the total gas flow and retains higher volume fraction of MAX-phase in the coatings, however, at the expense of increasing porosity. X-ray pole figure measurements showed a preferred crystal orientation in the coatings with the Ti2AlC (0001) planes aligned to the substrate surface. Bending tests show a good adhesion to stainless steel substrates and indentation yields a hardness of 3-5 GPa for the coatings sprayed with a powder size of 38 mu m. (c) 2008 Elsevier B.V. All rights reserved.


Scanning electron microscopy (SEM)


Phase transitions





High Velocity Oxy-Fuel (HVOF)




J. Frodelius

Linköping University

Marie Sonestedt

Chalmers, Applied Physics, Microscopy and Microanalysis

S. Bjorklund

University West

J. P. Palmquist

Kanthal AB

Krystyna Marta Stiller

Chalmers, Applied Physics, Microscopy and Microanalysis

H. Hogberg

Linköping University

L. Hultman

Linköping University

Surface and Coatings Technology

0257-8972 (ISSN)

Vol. 202 24 5976-5981

Subject Categories

Other Engineering and Technologies



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9/6/2018 1