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

02385 ALLOY AND COATINGS PARAMETERS THAT MAY CONTRIBUTE TO THE PERFORMANCE BEHAVIOR OF HIGH TEMPERATURE MATERIALS

Picture for 02385 ALLOY AND COATINGS PARAMETERS THAT...
Available for download
Product Number: 51300-02385-SG
ISBN: 02385 2002 CP
Author: David A. Shifter
$0.00
$20.00
$20.00
During a recent high-temperature work, it was discovered that a high-temperature coating on a single crystal casting had completely failed after 1000 hours of exposure in a hot corrosion environment. Though previous tests showed this coating was somewhat resistant to hot corrosion at 1650 °F (899 °C), our results revealed catastrophic corrosion penetration of both the coating and the alloy substrate. Differences in chemical compositions between a coating and a substrate alloy can lead to interdiffusion between these materials that can modify the oxidation and corrosion resistance of the coating and the mechanical properties of the coating-substrate system. The stress state may also significantly influence and increase the magnitude of the interdiffusion that may lead to deleterious precipitation reactions. The crystal orientation or alloy phase of the substrate may also contribute to interdiffusion rates. This paper will look at the chemistry of a high-temperature coating and a substrate alloy before and after exposure to a hot corrosion environment to evaluate the degree of interdiffusion and discern what mechanistic pathways may cause precipitation reactions deleterious to alloy/coating performance. KEYWORDS: high temperature coatings, aluminide coatings, sulfidation, hot corrosion, interdiffusion, segregation, transport, diffusion
During a recent high-temperature work, it was discovered that a high-temperature coating on a single crystal casting had completely failed after 1000 hours of exposure in a hot corrosion environment. Though previous tests showed this coating was somewhat resistant to hot corrosion at 1650 °F (899 °C), our results revealed catastrophic corrosion penetration of both the coating and the alloy substrate. Differences in chemical compositions between a coating and a substrate alloy can lead to interdiffusion between these materials that can modify the oxidation and corrosion resistance of the coating and the mechanical properties of the coating-substrate system. The stress state may also significantly influence and increase the magnitude of the interdiffusion that may lead to deleterious precipitation reactions. The crystal orientation or alloy phase of the substrate may also contribute to interdiffusion rates. This paper will look at the chemistry of a high-temperature coating and a substrate alloy before and after exposure to a hot corrosion environment to evaluate the degree of interdiffusion and discern what mechanistic pathways may cause precipitation reactions deleterious to alloy/coating performance. KEYWORDS: high temperature coatings, aluminide coatings, sulfidation, hot corrosion, interdiffusion, segregation, transport, diffusion
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 00009 REPORT OF A COATING FAILURE ON A 16-INCH
Available for download

00009 REPORT OF A COATING FAILURE ON A 16-INCH OIL PIPELINE UNDER WET CO2 SERVICE

Product Number: 51300-00009-SG
ISBN: 00009 2000 CP
Author: Klaus E. Kueter and David E. Hendrix
$20.00
Picture for TM0185-2006
Available for download

NACE TM0185-2006, Evaluation of Internal Plastic Coatings for Corrosion Control of Tubular Goods by Autoclave Testing

Product Number: 21217-SG
$179.00

HISTORICAL DOCUMENT. Method of comparing the performance of internal pipe coatings by autoclave testing. Comparisons were made under uniform laboratory conditions.
Picture for SP0188-2006
Available for download

NACE SP0188-2006 (formerly RP0188), Discontinuity (Holiday) Testing of New Protective Coatings on Conductive Substrates

Product Number: 21038-SG
Publication Date: 2006
$179.00

Provides a procedure for electrical detection of minute discontinuities in coating systems that are liquid-applied to conductive substrates other than pipelines.
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