Dilara Atam , Sefa Emre Sunbul , Kursat Icin , Kadir Mert Döleker , Mustafa Sabri Gök , Azmi Erdoğan
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Abstract
This study is dedicated to determine the effect of boriding treatment on CrFeMnNbNi alloy. Three phases (Laves, FeNi, FeCr) were determined in the HEA microstructure in accordance with thermodynamic calculations. After the boriding process, a 30–35 µm thick metallic boriding layer was formed on the surface. Thanks to boride layer, the hardness increased approximately 5 times, reaching up to 2800 HV. In nanoindentation tests performed on HEA, hardness and reduced elastic modulus were highest in the Laves phase (10.9–190 GPa) and lowest in the FeNi phase (2.74–128 GPa). These values reached their highest values (24–302 GPa) in the boride layer. In wear tests, it has been shown that boriding directly affects wear losses and reduces them by up to 96 %.
期刊介绍：
Tribology is the science of rubbing surfaces and contributes to every facet of our everyday life, from live cell friction to engine lubrication and seismology. As such tribology is truly multidisciplinary and this extraordinary breadth of scientific interest is reflected in the scope of Tribology International.
Tribology International seeks to publish original research papers of the highest scientific quality to provide an archival resource for scientists from all backgrounds. Written contributions are invited reporting experimental and modelling studies both in established areas of tribology and emerging fields. Scientific topics include the physics or chemistry of tribo-surfaces, bio-tribology, surface engineering and materials, contact mechanics, nano-tribology, lubricants and hydrodynamic lubrication.
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