Cladding of Cr- Modified NiAl Coating on 310 Stainless Steel Weld Cladding and Evaluation of its Wear Behavior.
| Autor: | S. Pourmohamadi, M. Atapour, F. Ashrafizadeh |
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| Jazyk: | perština |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Journal of Advanced Materials in Engineering, Vol 35, Iss 4, Pp 39-50 (2017) |
| Druh dokumentu: | article |
| ISSN: | 1025-2851 2423-5733 |
| Popis: | In this study, a Cr-modified NiAl coating was fabricated by weld cladding technique using Gas- Tungsten Arc Welding (GTAW) process on 310 steel. Chemical composition and microstructure of the coating was studied by X-Ray Diffraction (XRD), optical microscopy and scanning electron microscopy equipped with an Energy Dispersive Spectroscopy (EDS). The wear behavior of the coated steel was examined through pin-on-disc tests at ambient temperature and 400 °C. The results showed that the hardness of coated steel increased remarkably due to the formation of Cr-modified NiAl on the surface. Furthermore, the wear experiments showed that the presence of Cr-modified NiAl coating caused significant improvement in wear resistance of cladding 310 steel at both ambient temperature and 400 °C. These results were discussed based on the wear mechanism obtained from examination of the worn surfaces using SEM. |
| Databáze: | Directory of Open Access Journals |
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