Server maintenance is scheduled for Saturday, December 21st between 6am-10am CST.

During that time, parts of our website will be affected until maintenance is completed. Thank you for your patience.

Menu
Search
Filters
Close
Menu

51314-4384-Effect of post-weld cleanup method on the localized corrosion resistance of duplex stainless steels

Picture for Effect of post-weld cleanup method on the localized corrosion resistance of duplex stainless steels
Available for download
Product Number: 51314-4384-SG
ISBN: 4384 2014 CP
Author: Brett Tossey
Publication Date: 2014
$0.00
$20.00
$20.00
Recent experience with duplex stainless steels in wet flue gas desulfurization service has shown rapid localized attack.  This paper discusses field observations laboratory results and a brief historical perspective on the corrosion phenomena.  Early observations of attacked WFGD absorbers shows pitting and crevice corrosion near welds in the immersion zone and inside spray headers.  The post weld cleanup methods that were used were not consistent from plant to plant offering a variety of data to analyze. Some of the common methods were wire brushing sanding with flapper wheels pickle-passivation treatement and grinding.  The surface preparation methods were applied to coupons for laboratory testing. Laboratory testing consisted of galvanic corrosion tests and cyclic potentiodynamic polariuzation testing and microscopy.  The surface finish and the presence of crevices played key roles in determining each alloys corrosion resistance.
Recent experience with duplex stainless steels in wet flue gas desulfurization service has shown rapid localized attack.  This paper discusses field observations laboratory results and a brief historical perspective on the corrosion phenomena.  Early observations of attacked WFGD absorbers shows pitting and crevice corrosion near welds in the immersion zone and inside spray headers.  The post weld cleanup methods that were used were not consistent from plant to plant offering a variety of data to analyze. Some of the common methods were wire brushing sanding with flapper wheels pickle-passivation treatement and grinding.  The surface preparation methods were applied to coupons for laboratory testing. Laboratory testing consisted of galvanic corrosion tests and cyclic potentiodynamic polariuzation testing and microscopy.  The surface finish and the presence of crevices played key roles in determining each alloys corrosion resistance.
Product tags
Also Purchased
Picture for Influence of Welding and Post-Weld Cleaning on Performance of Duplex Stainless Steels
Available for download

51312-01250-Influence of Welding and Post-Weld Cleaning on Performance of Duplex Stainless Steels

Product Number: 51312-01250-SG
ISBN: 01250 2012 CP
Author: John F. Grubb
Publication Date: 2012
$20.00
Picture for 03398 SELECTIVE CORROSION IN DUPLEX STAINLESS
Available for download

03398 SELECTIVE CORROSION IN DUPLEX STAINLESS STEEL

Product Number: 51300-03398-SG
ISBN: 03398 2003 CP
Author: Wen-Ta Tsai, Kuen-Ming Tsai, Changjan Lin
$20.00
Picture for Corrosion Initiation and Propagation of Two Duplex Stainless Steels Embedded in Concrete
Available for download

51314-4359-Corrosion Initiation and Propagation of Two Duplex Stainless Steels Embedded in Concrete

Product Number: 51314-4359-SG
ISBN: 4359 2014 CP
Author: Francisco Presuel-Moreno
Publication Date: 2014
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support