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Erosion Wear Resistance of TiAlCrN Coating on Stainless Steel Impacted by Solid Particles

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Abstract:

TiAlCrN coating was deposited on a stainless steel using unbalanced magnetron sputtering technique. The erosion wear resistance of the TiAlCrN coating was investigated by comparison with that of the TiN coating deposited by filtered vacuum arc deposition. SEM was used for observing the surface morphologies of coatings both the un-eroded and eroded. Scratch test was used to evaluate the adhesion of the coatings. The erosion wear was tested with a gas blast apparatus at room temperature. In the test, the coatings were impacted at an impingement angle of 90° by angular SiC solid particles with an average diameter of 124um. The maximum depth of the erosion scar measured by the optical profiler was used to evaluate the erosion wear loss of the coatings. TiAlCrN coating proved to have much lower erosion rate than TiN coating. Unlike TiN coating, the TiAlCrN coating behaved like semi-brittle material.

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Periodical:

Materials Science Forum (Volumes 675-677)

Pages:

1271-1274

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.675-677.1271

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Online since:

February 2011

Authors:

Feng Fang Wu, Jian Xin Deng

Keywords:

Coating, Erosion Wear, Solid Particle, TiAlCrN

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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