| 2006 №03 (03) | 2006 №03 (05) |
The Paton Welding Journal, 2006, #3, 16-21 pages
Sensitivity of δ-ferrite formation to FCAW process parameters in stainless steel claddings
P.K. Palani1, N. Murugan2
1Government College of Technology, Coimbatore, India2Institute of Technology, Coimbatore, India
Abstract
The quality of clad components depends on the quantity of residual δ-ferrite formed during cladding, which in turn is controlled by the process parameters. The objective of controlling ferrite formed during cladding can easily be achieved by developing equations to predict ferrite number in terms of the process parameters, such as welding current, welding speed and nozzle-to-plate distance. Sensitivity analysis was performed for identifying the process parameters, which exert the most influence on the δ-ferrite formation and to know the parameters, which must be most carefully controlled. Studies reveal that change of nozzle-to-plate distance affects the formation of ferrite more strongly than the other process parameters.
Keywords: cladding, process parameters, δ-ferrite, sensitivity analysis, response surface methodology
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