Abstract
In this study, the effects of nitrocarburizing, QPQ, and Cr coating on the surface properties of 32CrMoV12-10 gun barrels are discussed. Hardness measurements, pin-on-disc tests, and anodic polarization tests were performed to examine the hardness values, wear resistance, friction coefficient, and corrosion resistance. The hardness of the specimen treated with QPQ was found to be the highest. Comparing the hardness profiles, it was observed that the casing depth of the nitrocarburized sample was shallower than that of the QPQ-treated sample. The pin-on-disc test revealed that the nitrocarburized sample exhibited a high coefficient of friction, while the Cr-coated sample showed the lowest coefficient of friction. Analyzing the Tafel polarization curve, it was determined that the nitrocarburized and QPQ-treated specimens demonstrated similar levels of corrosion resistance. However, it can be noted that the QPQ-treated specimen had a slightly lower corrosion rate.
About the authors
Aysu Hande Yucel, a Research Assistant, was born in Ankara, Turkey, in 1993. She obtained her bachelor’s degree in Materials Engineering from Ankara Yildirim Beyazit University. Following that, she pursued her master’s degree in mechanical engineering at Istanbul Technical University. Currently, she is continuing her doctoral studies at the same institution.
Dr. Alpay Yilmaz was born in 1973 in Istanbul, Turkey. He obtained his bachelor’s degree from Istanbul Technical University and went on to pursue further education at Kocaeli University, where he earned both his master’s and PhD degrees in 2002 and 2006, respectively. Dr. Alpay Yilmaz holds the position of Program Director in the Defense Industry in Ankara.
Dr. Mustafa Bakkal was born in Bilecik, Turkey in 1974. He completed his undergraduate studies in mechanical engineering at Istanbul Technical University in 1997. He got a master’s degree from the same university in 1999, followed by a doctorate from North Carolina State University in 2004. At the moment, Dr. Bakkal is a professor at Istanbul Technical University in Mechanical Engineering Faculty and conducts research on composite materials and manufacturing.
Dr. Ali Taner Kuzu was born in Tekirdag, Turkey in 1985. Dr. Ali Taner Kuzu earned his bachelor’s degree in manufacturing engineering from Istanbul Technical University. Continuing his academic journey, he pursued a master’s degree at the same institution, graduating in 2011, followed by a PhD in 2017. Ali Taner Kuzu is currently an assistant professor at Işık University in Turkey.
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors state no conflict of interest.
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Research funding: None declared.
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Data availability: Not applicable.
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