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Effect on Surface Roughness of Laser AblatedSS 321 Material Coated with Graphene and SiC

Affiliations

  • Department of Mechanical Engineering, SRM University, Kattankulathur - 603203, Tamil Nadu, India

Abstract


Objectives: SS 321 is an austenitic stainless steel material which finds application in many fields. The coating on SS 321 by Graphene and SiC are used to improve the thermal resistance and strength of SS 321. Methods/Statistical Analysis: Coating of Graphene and SiC on SS 321 was done by spin coating and drop casting. The coated samples were subject to laser ablation followed by flame treatment. Then treated and untreated samples were characterized by SEM, EDX and Surface roughness measurement. Findings: From the SEM images the coating was found to be uniform and from the EDX measurement, the composition of the samples has been calculated and no observable impurities found. From the surface roughness measurement, it is evident that the roughness parameter changes from untreated to treated samples but there were no sign of cracks, which proves that the coating by Graphene and SiC on SS 321 is viable and increases the strength of the material. Application/Improvement: By doing Atomic Force Microscopy and thermal resistance and strength measurements on Graphene SiC coated SS 321 can give further authentic result or by choosing CNT like materials for coating, may improve the performance of SS 321.

Keywords

Graphene, SS 321, SiC, Spin Coating, Surface Roughness, SEM.

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