Optimization of CMT Cladding Process Parameter Using COPRAS Method in Cladding of Stellite-6 on AISI316L Alloy
How to Cite?
Thinesh Babu Thiagarajan, Sengottuvel Ponnusamy, "Optimization of CMT Cladding Process Parameter Using COPRAS Method in Cladding of Stellite6 on AISI316L Alloy," International Journal of Engineering Trends and Technology, vol. 69, no. 12, pp. 237-245, 2021. Crossref, https://doi.org/10.14445/22315381/IJETT-V69I12P228
This paper discusses the optimization of the welding parameter of the cold arc metal transfer (CMT) cladding process using a new technique called complex proportional assessment (COPRAS). The experiments were done based on central composite design (CCD). Welding speed, torch angle, current, and volt were the welding parameters for the experiment. The corrosion rate analysis, microhardness, microstructure, and the EDS x-ray spectroscopy analysis of the optimized parameters are discussed here based on COPRAS optimization ranking. Here, the cobalt-based alloy stellite-6 was coated over the AISI316L alloy. The results showed that the optimized experiment yielded good microhardness on cladding, interface and SS316L base metal sides and a maximum hardness of 350Hv observed in the cladding surface. From the EDS analysis of the cladding of experiment 23, the Cr and Co phases were found. The weld interface value varies from 0.04 to 0.19 mm.
AISI316L, Cladding, CMT, COPRAS Optimization, Stellite-6
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