Tribological evaluation of plasma nitride H13 steel
The influence of nitriding time and applied load in the friction-wear behaviour of an H13 steel has been studied. Weakly ionised plasma unit and a postdischarge plasma reactor were used for nitriding the H13 die steel with variations of nitriding time from 5h to 9h (at 500 oC). Optical microscopy an...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | México |
| Institución: | Instituto Tecnológico y de Estudios Superiores de Monterrey |
| Repositorio: | Redalyc-ITESM |
| OAI Identifier: | oai:redalyc.org:94229972003 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=94229972003 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas on Pin Wear disc H13 steel |
| Sumario: | The influence of nitriding time and applied load in the friction-wear behaviour of an H13 steel has been studied. Weakly ionised plasma unit and a postdischarge plasma reactor were used for nitriding the H13 die steel with variations of nitriding time from 5h to 9h (at 500 oC). Optical microscopy and microhardness deep profiles of the nitrided layer were obtained for each nitriding time. Standard pin-on-disc wear test were conducted at ambient temperature (18-23 oC) and dry sliding. It was observed that the higher the nitriding time, the lower the friction coefficient variations and wear rate varied as a function of the applied load. Plastic deformation and abrasion wear resulted to be the main wear mechanism for short sliding distances, while for long sliding distances plastic deformation dominated the wear mechanism and to some extent oxidative wear. The compound layer (white layer) was central for wear and load capacity. |
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