Year: 2025
Type: article
Abstract: This study appraised the adhesion of the layers developed on AISI 316L austenitic stainless subjected to gas nitriding at 560 °C during 24 and 72 h of exposure time. The resulting nitrided layers formed at the surface of the AISI 316L steel presented a thickness of 60.5 µm for 24 h, and 79.5 µm for 72 h. Furthermore, by applying the VDI 3198 indentation tests along with scratch testing operating in progressive load mode, the nitride layers integrity was examined. Whether 24 or 72 hours of exposure time, the layers exhibited an adhesion classified as acceptable, according to the chart disclosed in the standard, presenting radial cracks without significant spallations in both layers. Finally, only cohesive damage was produced by scratch testing, the corresponding critical loads in 24 and 72 h were determined, associated with tensile cracks, lateral spallation and angular cracks.
Institution: Instituto Tecnológico de Tlalnepantla
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: diamond
Funder: Tecnológico Nacional de México
OpenAlex ID: W7117458024