Menu
Search
Filters
Close
Menu

96170 EROSION-CORROSION OF COOLED THERMAL SPRAYED COATINGS IMPACTED BY MIXTURES OF QUARTZ AND CHEMICALLY ACTIVE COMPOUNDS

Picture for 96170 EROSION-CORROSION OF COOLED THERMAL
Available for download
Product Number: 51300-96170-SG
ISBN: 96170 1996 CP
Author: Buqian Wang and Kevin Luer
$0.00
$20.00
$20.00
A series of erosion-corrosion tests was carried out on AISI 1018 steel and four thermal sprayed coatings using a nozzle type elevated temperature erosion tester. The erodent particles were mechanical mixtures of SiO2 (quartz) with 1-4% NaCl or I -4% KCl. The specimens were water-cooled on the backside. Test conditions attempted to simulate erosioncorrosion (E-C) conditions at the tubes in the convection pass of FBC boilers. The effect of Cl-bearing salt/quartz mixtures on the E-C wastage mechanisms of these materials were investigated. It was found that the E-C wastage of 1018 steel and carbide coating specimens increased with increasing amounts of NaCl and KCl doped in the quartz. Among the four coatings tested, a WC- I 7CoCr coating demonstrated the lowest thickness loss of all of the quartz/salt mixtures while the Cr3C2- 25NiCr coating exhibited the highest E-C wastage. Meanwhile, quartz doped with NaCl or KCl had no effect on the E-C wastage of an HVOF Ni20Cr15Mo metal coating. The accelerating effect of doping alkali chlorides increased with both specimen surface temperature and environmental temperature. Keywords: quartz, SiO2, NaCl, KCl, HVOF coatings, erosion-corrosion, chemically active compounds, fluidized bed combustors, material wastage, elevated temperatures, wastage mechanisms.
A series of erosion-corrosion tests was carried out on AISI 1018 steel and four thermal sprayed coatings using a nozzle type elevated temperature erosion tester. The erodent particles were mechanical mixtures of SiO2 (quartz) with 1-4% NaCl or I -4% KCl. The specimens were water-cooled on the backside. Test conditions attempted to simulate erosioncorrosion (E-C) conditions at the tubes in the convection pass of FBC boilers. The effect of Cl-bearing salt/quartz mixtures on the E-C wastage mechanisms of these materials were investigated. It was found that the E-C wastage of 1018 steel and carbide coating specimens increased with increasing amounts of NaCl and KCl doped in the quartz. Among the four coatings tested, a WC- I 7CoCr coating demonstrated the lowest thickness loss of all of the quartz/salt mixtures while the Cr3C2- 25NiCr coating exhibited the highest E-C wastage. Meanwhile, quartz doped with NaCl or KCl had no effect on the E-C wastage of an HVOF Ni20Cr15Mo metal coating. The accelerating effect of doping alkali chlorides increased with both specimen surface temperature and environmental temperature. Keywords: quartz, SiO2, NaCl, KCl, HVOF coatings, erosion-corrosion, chemically active compounds, fluidized bed combustors, material wastage, elevated temperatures, wastage mechanisms.
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 96172 HIGH TEMPERATURE EROSION OF OXIDE
Available for download

96172 HIGH TEMPERATURE EROSION OF OXIDE SCALE FORMED ON T2 AND 310HcbN STEELS IN A SIMULATED PFBC CORROSION ENVIRONMENT

Product Number: 51300-96172-SG
ISBN: 96172 1996 CP
Author: T. Hayashida, S. Miyazaki, Y. Imaizumi, K.Ogawa, S.Tokura, N. Otsuka
$20.00
Picture for 96171 ENGINEERING ASSESSMENTS OF OXIDATION
Available for download

96171 ENGINEERING ASSESSMENTS OF OXIDATION OF COMMERCIAL ALLOYS

Product Number: 51300-96171-SG
ISBN: 96171 1996 CP
Author: R. C. John
$20.00
Picture for 96185 OPTIMIZATION OF SCALE INHIBITOR SQUEEZE
Available for download

96185 OPTIMIZATION OF SCALE INHIBITOR SQUEEZE PROCEDURES IN A NORTH SLOPE OIL FIELD

Product Number: 51300-96185-SG
ISBN: 96185 1996 CP
Author: B.L. Dibrell, B.D. Arnold, J. S. Ryman, D.E. Powell, L.C. Frazer
$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