Development of Stellite 1 hardfacing procedure for crack-free SS 304 stainless steel orifice plate

This paper studies establishing an effective deposition technique of cobalt-based Stellite1 on austenitic stainless steel (SS 304) orifice plate component, used in offshore application. Stellite1 hardfacing was done using gas tungsten arc welding (GTAW) and flux-cored arc welding (FCAW) techniques,...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2020-10, Vol.110 (9-10), p.2479-2492
Main Authors: Tamizhinian, V., Chandramohan, P.
Format: Article
Language:English
Subjects:
Austenitic stainless steels
CAD
CAE) and Design
Computer aided design
Computer-Aided Engineering (CAD
Cracks
Edge detection
Engineering
Finite element method
Flux core wire welding
Gas tungsten arc welding
Hard surfacing
Heat distribution
Heating
Industrial and Production Engineering
Mechanical Engineering
Media Management
Metallurgical analysis
Optical microscopy
Orifice meters
Orifices
Original Article
Software
Stainless steel
Substrates
Thermal insulation
Three dimensional analysis
Three dimensional models
Welding fluxes
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Summary:This paper studies establishing an effective deposition technique of cobalt-based Stellite1 on austenitic stainless steel (SS 304) orifice plate component, used in offshore application. Stellite1 hardfacing was done using gas tungsten arc welding (GTAW) and flux-cored arc welding (FCAW) techniques, which resulted in intergranular and longitudinal cracks. In finite element analysis (FEA), a three-dimensional solid model was generated and simulated for spot heat welding using ANSYS software. After simulation for heat distribution with and without weld bordering, crack-free hardfacing of Stellite1 was carried out and validated experimentally using FCAW technique. A control on substrate preheating, thermal insulation, job clamping and cooling time reduced the intersecting cracks. Metallurgical analysis using Optical microscopy, SEM, EDS and XRD along with hardness measurements was done to investigate the mechanisms causing failure. Crack area measurements were done in gradient edge detection technique using MATLAB software and quantified.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-020-06001-6