Effect of Welding Parameters on Pitting Corrosion Rate in 3.5N NaCl of Pulsed Current Micro Plasma Arc Welded AISI 304L Sheets

Effect of Welding Parameters on Pitting Corrosion Rate in 3.5N NaCl of Pulsed Current Micro... Abstract Austenitic stainless steel sheets have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, Pulsed Current Micro Plasma Arc Welding (PCMPAW) was found beneficial due to its advantages over the conventional continuous current process. This paper highlights the development of empirical mathematical equations using multiple regression analysis, correlating various process parameters to pitting corrosion rates in PCMPAW of AISI 304L sheets in 3.5 Normal NaCl. The experiments were conducted based on a five factor, five level central composite rotatable design matrix. The adequacy of the model is checked by Analysis of Variance (ANOVA). The main effects and interactions effects of the welding process parameters on pitting corrosion rates of the welded joints are studied using surface and contour plots. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal for Manufacturing Science and Production de Gruyter

Effect of Welding Parameters on Pitting Corrosion Rate in 3.5N NaCl of Pulsed Current Micro Plasma Arc Welded AISI 304L Sheets

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Publisher
de Gruyter
Copyright
Copyright © 2013 by the
ISSN
2191-4184
eISSN
2191-0375
DOI
10.1515/jmsp-2012-0031
Publisher site
See Article on Publisher Site

Abstract

Abstract Austenitic stainless steel sheets have gathered wide acceptance in the fabrication of components, which require high temperature resistance and corrosion resistance, such as metal bellows used in expansion joints in aircraft, aerospace and petroleum industry. In case of single pass welding of thinner sections of this alloy, Pulsed Current Micro Plasma Arc Welding (PCMPAW) was found beneficial due to its advantages over the conventional continuous current process. This paper highlights the development of empirical mathematical equations using multiple regression analysis, correlating various process parameters to pitting corrosion rates in PCMPAW of AISI 304L sheets in 3.5 Normal NaCl. The experiments were conducted based on a five factor, five level central composite rotatable design matrix. The adequacy of the model is checked by Analysis of Variance (ANOVA). The main effects and interactions effects of the welding process parameters on pitting corrosion rates of the welded joints are studied using surface and contour plots.

Journal

Journal for Manufacturing Science and Productionde Gruyter

Published: Apr 17, 2013

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