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Flow Induced Corrosion of Steels Exposed to Pulping Liquors

Picture for Flow Induced Corrosion of Steels Exposed to Pulping Liquors
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Product Number: 51315-5972-SG
ISBN: 5972 2015 CP
Author: Bedi Aydin Baykal
Publication Date: 2015
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$20.00
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Erosion-corrosion has been observed in evaporators digesters and other pulp mill equipment in the pulp and paper industry. Erosion-corrosion in these systems occurs due to a combination of caustic conditions and suspended solids. Resulting accelerated corrosion forces the shutdown of affected equipment. In order to better understand the mechanism of this corrosion process electrochemical tests were performed on typical materials used in the construction including carbon steels and stainless steels a polarization resistance method was used to get instantaneous corrosion current under flow conditions with differing pH concentration of liquor/pulp and percentage of solid. Corrosion behavior was quantified using a rotating cylinder electrode method in a prepared solution simulating field conditions for the evaporator and corrosion products remaining on the specimen surface were examined using an optical and scanning electron microscope.
Erosion-corrosion has been observed in evaporators digesters and other pulp mill equipment in the pulp and paper industry. Erosion-corrosion in these systems occurs due to a combination of caustic conditions and suspended solids. Resulting accelerated corrosion forces the shutdown of affected equipment. In order to better understand the mechanism of this corrosion process electrochemical tests were performed on typical materials used in the construction including carbon steels and stainless steels a polarization resistance method was used to get instantaneous corrosion current under flow conditions with differing pH concentration of liquor/pulp and percentage of solid. Corrosion behavior was quantified using a rotating cylinder electrode method in a prepared solution simulating field conditions for the evaporator and corrosion products remaining on the specimen surface were examined using an optical and scanning electron microscope.
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Evaluation of 316L and 2205 Steels Under Flow Effects in Caustic Environments

Product Number: 51317--9158-SG
ISBN: 9158 2017 CP
Author: Bedi Aydin Baykal
Publication Date: 2017
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To better understand the mechanism of erosion-corrosion, electrochemical tests were performed on UNS G10180, UNS S31603 and UNS S32205, used in the construction of pulp/paper machinery components exposed to caustic environments.
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51316-7127-Flow Accelerated Corrosion of Carbon Steel Pipe Carrying Hot Condensate Water in a Chemical Plant

Product Number: 51316-7127-SG
ISBN: 7127 2016 CP
Author: Fengmei Song
Publication Date: 2016
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Multiple leaks occurred with a carbon steel pipe carrying hot condensate water (300F and 140 psi).  A root cause analysis was performed, including visual and metallographic examination of two failed samples chemical, analysis of weld metal and base metal and chemical analysis of water samples.  Results show that flow accelerated corrosion (FAC) was the responsible mechanism leading to the failures.
Picture for Stress Corrosion Cracking of Stainless Steel in Heavy Black Liquor - Mill Experience.
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51318-10701-Stress Corrosion Cracking of Stainless Steel in Heavy Black Liquor - Mill Experience.

Product Number: 51318-10701-SG
Author: Stephen Clarke
Publication Date: 2018
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This paper describes the cracking failure of a UNS S30403 (304L) stainless steel 72% heavy black liquor storage tank at a Canadian bleached kraft pulp mill.
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