| Journal: | Superficies y vacío |
| Database: | PERIÓDICA |
| System number: | 000373753 |
| ISSN: | 1665-3521 |
| Authors: | Díaz Guillén, J.C1 Campa Castilla, A1 Pérez Aguilar, S. I1 Granda Gutiérrez, E.E1 Garza Gómez, A1 Candelas Ramírez, J1 Méndez Méndez, R1 |
| Institutions: | 1Corporación Mexicana de Investigación en Materiales S.A. de C.V., Saltillo, Coahuila. México |
| Year: | 2009 |
| Season: | Mar |
| Volumen: | 22 |
| Number: | 1 |
| Pages: | 1-4 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Plasma nitriding is a glow discharge technique, which is widely used to improve the surface properties of steel and its alloys, such as wear, corrosion resistance and hardness; additionally, it can increase fatigue strength. The aim of this work is to evaluate the effect of duty cycle on the surface properties of AISI 4340 low alloy steel, in a pulsed plasma nitriding process. The effect of duty cycle (applying a 10 – 80 % tON interval) on the surface hardness, treatment depth, compounds zone width and crystalline phase composition will be discussed. It has been found that for nitriding process at 540 °C in a gas mixture 50 % N2 – 50 % H2 at a constant pressure, using a discharge voltage of -800 V, duty cycle has a negligible effect on crystalline phase composition, even though the influence on surface hardness, treatment depth and compounds zone width is evident |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería de materiales, Modificación de superficies, Nitridación de plasma, Descarga de calor |
| Keyword: | Engineering, Materials engineering, Surface modification, Plasma nitriding, Glow discharge |
| Full text: | Texto completo (Ver HTML) |
