Tribological Characterization of AlCrN, TiAlN, TiSiN and AlTiN Coatings Against Mold Steel

Authors

DOI:

https://doi.org/10.5755/j02.mech.38122

Keywords:

Tribological evaluations, Coating performance, Friction reduction, Wear resistance, Surface roughness, Boundary lubrication

Abstract

This study investigates the tribological performance of TiAlN, AlTiN, AlCrN, and TiSiN coatings under boundary lubrication conditions using a tribometer. The findings indicate significant reductions in average friction coefficients compared to uncoated tungsten carbide (0.2436), with TiSiN demonstrating the lowest friction coefficient of 0.2111, thus showcasing its superior performance. Optical microscopy and profilometry analyses further reveal that TiSiN coating effectively minimizes surface roughness and wear tracks, suggesting enhanced wear resistance. While the coatings successfully reduce friction, they tend to increase wear on the counter materials. This study highlights the critical role of these coatings in industrial applications, emphasizing the need to balance friction reduction with wear enhancement for optimal performance.

Author Biography

Haci Abdullah TASDEMIR, Department of Mechanical Engineering, Istanbul Technical University

Dr.  Tasdemir is an assistant professor in the Department of Mechanical Engineering at Istanbul Technical University (ITU), where he has been serving since October 2015. He currently holds the position of associate chair for the Graduate Program, overseeing master’s and doctoral studies within the department. Additionally, Dr. Tasdemir is a rector’s advisor at ITU. His previous roles include serving as the associate chair for the Undergraduate Program from January 2017 to April 2020.

Dr. Tasdemir holds a bachelor’s degree in Mechanical Engineering from Erciyes University, awarded in 2007. He completed his master’s degree in Tribology and Mechanical Engineering at Purdue University in May 2011, with research in mechanical design and lubrication theory. He earned his Ph.D. in Mechanical Engineering from Nagoya University in August 2014, where his research focused on hard coatings, thin films, and nanotribology/lubrication.

His research interests include tribology, materials science, and surface engineering, with a focus on the development and evaluation of advanced coatings for industrial applications.

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Published

2025-05-06

Issue

Vol. 31 No. 2 (2025)

Section

MECHANICAL TECHNOLOGIES

License

Copyright (c) 2025 Mechanics

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This work is licensed under a Creative Commons Attribution 4.0 International License.