Menu
Search
Filters
Close
Menu

51318-10915-Analysis of Corrosion Damage on Samples Exposed to Accelerated and Outdoor Corrosion Environments

Marta A. Zuflacht, Erica N. Macha, Jessica Coogan, James F. Dante
Available for download

Quantitative analysis of the corrosion morphology after accelerated testing and outdoor exposures of lapjoint test panels coupled with various fastener materials. Image analysis of 3-D microscope images was used to quantify average depth of attack and percent surface area damage.

Product Number: 51318-10915-SG
Author: Marta A. Zuflacht, Erica N. Macha, Jessica Coogan, James F. Dante
Publication Date: 2018
$0.00
$20.00
$20.00

Accelerated corrosion tests are widely used in the industry and Department of Defense to determine the environmental performance of materials and coatings. While some cyclic tests show good correlations between performance in the laboratory and operational environments, they are only valid for very specific sets of performance metrics and generalizations often cannot be made. Significant work has been performed to investigate in detail the relationship between environmental variables and corrosion failure modes of various material systems. Relative humidity was found to be the single most relevant factor in governing atmospheric corrosion. This paper focuses on the quantitative analysis of the corrosion morphology after accelerated testing and outdoor exposures of lapjoint test panels coupled with various fastener materials. Image analysis of 3-D microscope images was used to quantify average depth of attack and percent surface area damage. A curve fitting routine was developed to quantify corrosion damage within a fastener hole. The effect of relative humidity on the mode and degree of corrosion was evaluated. The effect of different primer systems was also

 

Key words: atmospheric, galvanic, corrosion, lapjoint, accelerated testing

 

Accelerated corrosion tests are widely used in the industry and Department of Defense to determine the environmental performance of materials and coatings. While some cyclic tests show good correlations between performance in the laboratory and operational environments, they are only valid for very specific sets of performance metrics and generalizations often cannot be made. Significant work has been performed to investigate in detail the relationship between environmental variables and corrosion failure modes of various material systems. Relative humidity was found to be the single most relevant factor in governing atmospheric corrosion. This paper focuses on the quantitative analysis of the corrosion morphology after accelerated testing and outdoor exposures of lapjoint test panels coupled with various fastener materials. Image analysis of 3-D microscope images was used to quantify average depth of attack and percent surface area damage. A curve fitting routine was developed to quantify corrosion damage within a fastener hole. The effect of relative humidity on the mode and degree of corrosion was evaluated. The effect of different primer systems was also

 

Key words: atmospheric, galvanic, corrosion, lapjoint, accelerated testing

 

Product tags
Also Purchased
Picture for Mechanistic Study of the Role of Pyrite in Localized Corrosion of Mild Steel
Available for download

51318-10905-Mechanistic Study of the Role of Pyrite in Localized Corrosion of Mild Steel

Product Number: 51318-10905-SG
Author: Jing Ning, Yougui Zheng, Bruce Brown, David Young, and Srdjan Nesic
Publication Date: 2018
$20.00

Based on two hypotheses of the cause of this type of localized corrosion: an electrochemical galvanic effect and a chemical effect. Observations indicate that the electrochemical galvanic hypothesis was the key mechanism in this type of localized corrosion.
Picture for Control of Corrosion Inhibitor Fouling in Highly Sour System
Available for download

51318-10918-Control of Corrosion Inhibitor Fouling in Highly Sour System

Product Number: 51318-10918-SG
Author: Sonja Richter / Jay Locklear / Mohsen Achour / Thomas Baugh / Probjot Singh / Ross Goff
Publication Date: 2018
$20.00

Black tar-like fouling material was driving frequent shut-downs of a gas plant. Analysis indicated that the nitrogen containing corrosion inhibitor (CI) polymerized with sulfur compounds in a vulcanization process. Testing confirmed the role of the CI in creating this fouling.
Picture for Comparative Evaluation of Various Types of Metallic Coatings for Structural Steel in Marine Enviroments
Available for download

51318-10912-Comparative Evaluation of Various Types of Metallic Coatings for Structural Steel in Marine Enviro

Product Number: 51318-10912-SG
Author: Oladis Troconis de Rincón / Orlando Salas / Nathalie Romero / Ivan Lasa / Matthew Duncan / Jenny Guan
Publication Date: 2018
$20.00

This paper discusses a comparative evaluation of the performance of various types of protective coatings available for the corrosion protection of structural steel components located in marine environments.
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