Menu
Search
Filters
Close
Menu

99074 DYNAMIC AIR DEPOSITED COATINGS FOR POWER AND BLACK LIQUOR RECOVERY BOILERS

Picture for 99074 DYNAMIC AIR DEPOSITED COATINGS FOR POWER
Available for download
Product Number: 51300-99074-SG
ISBN: 99074 1999 CP
Author: A.A. Verstak and V.E. Baranovski
$0.00
$20.00
$20.00
Dynamic Air Deposition (DyAir) is a novel coating method designed to protect the tubing of power and black liquor recovery boilers against corrosion attack at elevated temperatures. The method utilizes the energy of combustion of gaseous fiel and air to heat the powder material to a temperature just below its melting point and accelerate it over 600 m/s to form a coating. The Ni-Cr and Ni-Cr-Mo DyAir coatings revealed no gas permeability and extremely low oxygen content. Compared to the electric arc and HVOF-sprayed coatings, the DyAir coatings exhibited higher hardness and better crack resistance. During aging at 400 and 700°C the bond strength and crack resistance of the DyAir coatings increased dramatically due to intensive difision processes in absence of internal corrosion attack. The DyAir coatings revealed outstanding resistance to corrosion, such as sulfidation attack in presence of hydrochloric acid gas at 400°C, oxidation attack at 700°C and oxidation attack in presence of chlorine at 400°C. Keywords: boiler, coating, gas permeation corrosion resistance, sulfidation, oxidation, chlorine, alloy 625, alloy 671
Dynamic Air Deposition (DyAir) is a novel coating method designed to protect the tubing of power and black liquor recovery boilers against corrosion attack at elevated temperatures. The method utilizes the energy of combustion of gaseous fiel and air to heat the powder material to a temperature just below its melting point and accelerate it over 600 m/s to form a coating. The Ni-Cr and Ni-Cr-Mo DyAir coatings revealed no gas permeability and extremely low oxygen content. Compared to the electric arc and HVOF-sprayed coatings, the DyAir coatings exhibited higher hardness and better crack resistance. During aging at 400 and 700°C the bond strength and crack resistance of the DyAir coatings increased dramatically due to intensive difision processes in absence of internal corrosion attack. The DyAir coatings revealed outstanding resistance to corrosion, such as sulfidation attack in presence of hydrochloric acid gas at 400°C, oxidation attack at 700°C and oxidation attack in presence of chlorine at 400°C. Keywords: boiler, coating, gas permeation corrosion resistance, sulfidation, oxidation, chlorine, alloy 625, alloy 671
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 99080 FIRESIDE CARBURIZATION OF STAINLESS STEEL
Available for download

99080 FIRESIDE CARBURIZATION OF STAINLESS STEEL FURNACE TUBES

Product Number: 51300-99080-SG
ISBN: 99080 1999 CP
Author: Edmundo Miraba, Carlos Molina, Anelsy Mayorga and Jorge L. Hau
$20.00
Picture for 99078 VOLUBILITY STUDY ON PROTECTIVE OXIDE
Available for download

99078 SOLUBILITY STUDY ON PROTECTIVE OXIDE FILMS IN MOLTEN CHLORIDES CREATED BY REFUSE INCINERATION ENVIRONMENT

Product Number: 51300-99078-SG
ISBN: 99078 1999 CP
Author: Ishitsuka Tetsuo and Koichi Nose
$20.00
Picture for 99075 STUDIES CONCERNED WITH THE METAL
Available for download

99075 STUDIES CONCERNED WITH THE METAL DUSTING OF Fe-Cr-Ni MATERIALS

Product Number: 51300-99075-SG
ISBN: 99075 1999 CP
Author: Mark Maier and James F. Norton
$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