Indian Welding Journal

Open Access Open Access  Restricted Access Subscription Access
Open Access Open Access Open Access  Restricted Access Restricted Access Subscription Access

Effect of Welding Parameters on Pitting Resistance Equivalent Number of Duplex Stainless Steel Clad Metals


Affiliations
1 Mechanical Engineering, Kumaraguru College of Technology, Coimbatore-641006, India
2 Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore-641014, India
     

   Subscribe/Renew Journal


Resistance to pitting corrosion is commonly expressed by Pitting Resistance Equivalent Number (PREN). During duplex stainless steel weld cladding, pitting resistance balance is disturbed by the formation of intermetallic precipitates, or by excessive precipitation of secondary austenite in surface regions. Redistribution of alloying elements as a result of such transformations may lead to local reductions in pitting resistance. Hence, control of PREN is very important to maintain the required pitting resistance. This paper highlights an experimental study and analysis of various welding parameters influencing PREN in duplex stainless steel cladding deposited by Flux Cored Arc Welding (FCAW). The experiments were conducted based on four-factor five level central composite rotatable design and a mathematical model was developed to predict PREN. The effects of welding parameters on PREN have been presented in graphical form, which helps in selecting appropriate welding parameters to obtain the desired PREN quickly.

Resistance to pitting corrosion is commonly expressed by Pitting Resistance Equivalent Number (PREN). During duplex stainless steel weld cladding, pitting resistance balance is disturbed by the formation of intermetallic precipitates, or by excessive precipitation of secondary austenite in surface regions. Redistribution of alloying elements as a result of such transformations may lead to local reductions in pitting resistance. Hence, control of PREN is very important to maintain the required pitting resistance. This paper highlights an experimental study and analysis of various welding parameters in flu e n c in g PREN in d u p le x stainless steel cladding deposited by Flux Cored Arc Welding (FCAW). The experiments were conducted based on four-factor five level central composite rotatable design and a mathematical model was developed to predict PREN. The effects of welding parameters on PREN have been presented in graphical form, which helps in selecting appropriate welding parameters to obtain the desired PREN quickly.


User
Subscription Login to verify subscription
Notifications
Font Size

Abstract Views: 215

PDF Views: 5




  • Effect of Welding Parameters on Pitting Resistance Equivalent Number of Duplex Stainless Steel Clad Metals

Abstract Views: 215  |  PDF Views: 5

Authors

T. Kannan
Mechanical Engineering, Kumaraguru College of Technology, Coimbatore-641006, India
N. Murugan
Mechanical Engineering, Coimbatore Institute of Technology, Coimbatore-641014, India

Abstract


Resistance to pitting corrosion is commonly expressed by Pitting Resistance Equivalent Number (PREN). During duplex stainless steel weld cladding, pitting resistance balance is disturbed by the formation of intermetallic precipitates, or by excessive precipitation of secondary austenite in surface regions. Redistribution of alloying elements as a result of such transformations may lead to local reductions in pitting resistance. Hence, control of PREN is very important to maintain the required pitting resistance. This paper highlights an experimental study and analysis of various welding parameters influencing PREN in duplex stainless steel cladding deposited by Flux Cored Arc Welding (FCAW). The experiments were conducted based on four-factor five level central composite rotatable design and a mathematical model was developed to predict PREN. The effects of welding parameters on PREN have been presented in graphical form, which helps in selecting appropriate welding parameters to obtain the desired PREN quickly.

Resistance to pitting corrosion is commonly expressed by Pitting Resistance Equivalent Number (PREN). During duplex stainless steel weld cladding, pitting resistance balance is disturbed by the formation of intermetallic precipitates, or by excessive precipitation of secondary austenite in surface regions. Redistribution of alloying elements as a result of such transformations may lead to local reductions in pitting resistance. Hence, control of PREN is very important to maintain the required pitting resistance. This paper highlights an experimental study and analysis of various welding parameters in flu e n c in g PREN in d u p le x stainless steel cladding deposited by Flux Cored Arc Welding (FCAW). The experiments were conducted based on four-factor five level central composite rotatable design and a mathematical model was developed to predict PREN. The effects of welding parameters on PREN have been presented in graphical form, which helps in selecting appropriate welding parameters to obtain the desired PREN quickly.