Abstract
Abstract In this study, arc stud welding process was employed for welding AISI 316 stainless steel studs to AISI 1060 high carbon steel plates. A disc of Ni powder prepared and used as a buffering layer to enhance the properties of welding area. Optical and scanning electron microscopy were used to examine the microstructure. Energy-Dispersive X-ray (EDX) and X-Ray Diffraction (XRD) tests were performed to analyse and identify elements and phases, respectively in the weld region. The results observed that Ni powder prevented the direct contact between the dissimilar base metals. Existing of Ni altered the microstructure of the weld zone and encouraged dendritic type over cellular. Hardness reduced in the weld region from 600 HV to 200 HV due to the effect of Ni powder which prevented the formation of brittle Fe-Cr phase.
Highlights
In a process system that contains multiple parts, every part might work at a specific condition
In the present work AISI 316 stainless steel studs were welded to AISI 1060 high carbon by Arc stud welding (ASW) process
Ni powder disc was utilised as a buffering layer
Summary
In a process system that contains multiple parts, every part might work at a specific condition. Combination of different materials is necessary in design, especially in applications that require a certain combination of properties[1,2]. Welding technique can be employed to join between dissimilar metals. The properties of the resultant weld are governed by base metal (BM), filler metal, microstructural development in fusion zone (FZ) and type of implemented welding process[3]. Many factors should be considered during dissimilar welding such as physical and mechanical properties of BM and possibility of alloying and compounds in the FZ. The employed welding technique might be the most effective factor. Fusion and solid‐state welding techniques have been used in joining between dissimilar metals[4,5,6,7]
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