Hardness optimization of boride diffusion layer on ASTM F-75 alloy using response surface methodology
In this study, the Response Surface Methodology (RSM) and Central Composite Design (CCD) were used to optimize the hardness of boride diffusion layer on ASTM F-75 alloy (also called Haynes alloy). A boronizing thermochemical treatment was carried out at different temperatures and for different time...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2017 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Revista Mexicana de Física |
| Idioma: | inglés |
| OAI Identifier: | oai:ojs2.rmf.smf.mx:article/316 |
| Acceso en línea: | https://rmf.smf.mx/ojs/index.php/rmf/article/view/316 |
| Access Level: | acceso abierto |
| Palabra clave: | ASTM F-75 CoCrMo boriding RSM haynes alloy |
| Sumario: | In this study, the Response Surface Methodology (RSM) and Central Composite Design (CCD) were used to optimize the hardness of boride diffusion layer on ASTM F-75 alloy (also called Haynes alloy). A boronizing thermochemical treatment was carried out at different temperatures and for different time periods. Hardness tests were conducted. The boride diffusion layer was verified by the X-ray diffraction (XRD) analysis indicating the formation of CoB, Co$_2$B, CrB and Mo$_2$B phases. An optimal hardness of 3139.7 HV was obtained for the samples subjected to the boriding process for a duration of 6.86 h at 802.4$^{\circ}$C. |
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