Volume 35, Issue 4 (Journal of Advanced Materials-Winter 2017)                   jame 2017, 35(4): 39-50 | Back to browse issues page

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Pourmohamadi S, Atapour M, Ashrafizadeh F. Cladding of Cr- Modified NiAl Coating on 310 Stainless Steel Weld Cladding and Evaluation of its Wear Behavior.. jame. 2017; 35 (4) :39-50
URL: http://jame.iut.ac.ir/article-1-876-en.html
, m.atapour@cc.iut.ac.ir
Abstract:   (8887 Views)

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.

Keywords: Weld cladding, NiAl, Wear
Full-Text [PDF 2396 kb]   (1262 Downloads)    
Type of Study: Research | Subject: Welding and joining
Received: 2017/02/19 | Accepted: 2017/02/19 | Published: 2017/02/19

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