The The optimization of welding hardfacing on wear resistance of FC-25 grey cast iron steel substrate by response surface methodology (RSM)

Authors

  • Suriya Prasomthong Faculty of Industrial Technology, Nakhon Phanom University, Nakhon Phanom, 48000 Thailand
  • Sittichai Charoenrat Faculty of Industrial Technology, Nakhon Phanom University, Nakhon Phanom, 48000 Thailand

DOI:

https://doi.org/10.55674/snrujst.v14i2.245154

Keywords:

Response surface, Welding hardfacing, FC-25 grey cast iron

Abstract

This paper aimed to identify the optimal conditions for welding hardfacing by applying the Response Surface Methodology (RSM). The welding heat input, electrode type, and hardfacing layer on wear resistance of welding hardfacing were all optimized using the Box-Behnken experimental design. The findings revealed that these three variables had an impact on the volume loss of welding hardfacing. Because of the high coefficient of determination, the experimental data obtained were to a quadratic equation (96.90%). The ideal condition was determined using a 3D response surface plot and a contour map produced from mathematical models. The following were the ideal welding conditions: With a welding heat input of 1.58 J, a filler metal type of DFA2-600-B, and a third layer of hardfacing, the lower volume loss of the weld was 1.29 mm3.

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Published

2022-05-01

How to Cite

Prasomthong, S., & Charoenrat, S. (2022). The The optimization of welding hardfacing on wear resistance of FC-25 grey cast iron steel substrate by response surface methodology (RSM). SNRU Journal of Science and Technology, 14(2), 245154. https://doi.org/10.55674/snrujst.v14i2.245154