Tribological and adhesion properties of microwave-assisted borided AISI 316L steel
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2022
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Abstract
In this study, AISI 316L stainless steel alloy samples were borided with powder-pack boriding method using Ekabor II powder with the support of a microwave furnace with a power of 2.9 KW and a frequency of 2.45 GHz. Boriding was carried out at 850, 900 and 950 °C temperatures for 2, 4 and 6 h of operation. A distinct diffusion barrier consisting of Fe-Ni-Si elements was detected in borided samples at 950 °C for 4 and 6 h. As a result of the Daimler Benz Rockwell-C adhesion tests, regions with insufficient adhesion strength were detected in these samples. In other samples, adhesion qualities between boride layers and substrate were in the range of HF1-HF3. The lowest specific wear rates were determined as 5.208 (mm3 Nm-1) × 10-6 and 5.210 (mm3 Nm-1) × 10-6 for the samples borided for 6 h at 850 °C and 4 h at 900 °C, respectively. It was determined that the increase in thickness of the brittle FeB compound increased the wear with the three-body abrasive wear mechanism. © 2021 Walter de Gruyter GmbH, Berlin/Boston.
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Adhesion , Alloy steel , Austenitic stainless steel , Iron compounds , Microwave heating , Silicon compounds , Wear of materials , 316 L stainless steel , 316L steel , 950° C , Adhesion properties , Aisi 316l , Microwave-assisted , Microwave-heating , Stainless steel alloys , Tribological properties , Wear-testing , Tribology