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

99187 THE EFFECTS OF MICROSTRUCTURE ON MIC SUSCEPTIBILITY IN HIGH STRENGTH ALUMINUM ALLOYS

Picture for 99187 THE EFFECTS OF MICROSTRUCTURE ON MIC
Available for download
Product Number: 51300-99187-SG
ISBN: 99187 1999 CP
Author: Daniel W. Walsh,
$0.00
$20.00
$20.00
Aluminum alloys, and in particular Al-Li-Cu alloys are attractive to the aerospace industry. The high specific strength and stiffness of these alloys will improve lift efficiency, fuel economy, performance and increase payload capabilities of air and spacecraft. The objectives of this work were to examine the corrosion behavior of Al 2195 (UNS A92 195) (AI-4 CU-1Li) and to assess the effect of welding on corrosion behavior in biologically active and in sterile waters. Al 2219 (UNS A922 19) samples were used in parallel tests to provide a baseline for the data generated. In this study samples were exposed to mild corrosive water solutions in both the as received and as welded conditions. The results of the study indicate exposure to biologically active solutions increases the corrosion rate. In addition, welding increases the corrosion rate in both Al 2195 and Al 2219, and causes severe localization in Al 2195. Furthermore, autogenously welded Al 2195 samples were more susceptible to attack than heterogeneously welded Al 2195 samples. Heterogeneously welded samples in both materials also had high corrosion rates, but only the Al 2195 material was subject to localization of attack. The partially melted zones of Al 2195 samples were subject to severe, focused attack. In Al 2219, interdendritic constituents in welded areas and intergranular constituents in base material were cathodic to the Al rich matrix materials. In Al 2195, some interdendritic constituents in welded areas and intergranular constituents in base material were anodic to the Al rich matrix materials. Corrosion resistance was correlated to material microstructure using optical microscopy, scanning electron microscopy, electron probe microanalysis and polarization resistance. Keywords: Aluminum, corrosion, welding, biofilms, microbes
Aluminum alloys, and in particular Al-Li-Cu alloys are attractive to the aerospace industry. The high specific strength and stiffness of these alloys will improve lift efficiency, fuel economy, performance and increase payload capabilities of air and spacecraft. The objectives of this work were to examine the corrosion behavior of Al 2195 (UNS A92 195) (AI-4 CU-1Li) and to assess the effect of welding on corrosion behavior in biologically active and in sterile waters. Al 2219 (UNS A922 19) samples were used in parallel tests to provide a baseline for the data generated. In this study samples were exposed to mild corrosive water solutions in both the as received and as welded conditions. The results of the study indicate exposure to biologically active solutions increases the corrosion rate. In addition, welding increases the corrosion rate in both Al 2195 and Al 2219, and causes severe localization in Al 2195. Furthermore, autogenously welded Al 2195 samples were more susceptible to attack than heterogeneously welded Al 2195 samples. Heterogeneously welded samples in both materials also had high corrosion rates, but only the Al 2195 material was subject to localization of attack. The partially melted zones of Al 2195 samples were subject to severe, focused attack. In Al 2219, interdendritic constituents in welded areas and intergranular constituents in base material were cathodic to the Al rich matrix materials. In Al 2195, some interdendritic constituents in welded areas and intergranular constituents in base material were anodic to the Al rich matrix materials. Corrosion resistance was correlated to material microstructure using optical microscopy, scanning electron microscopy, electron probe microanalysis and polarization resistance. Keywords: Aluminum, corrosion, welding, biofilms, microbes
PRICE BREAKS - The more you buy, the more you save
Quantity
1+
5+
Price
$20.00
$20.00
Product tags
Also Purchased
Picture for 99197 OSCILLATION AND CHAOS IN PITTING CORROSION
Available for download

99197 OSCILLATION AND CHAOS IN PITTING CORROSION OF STEEL

Product Number: 51300-99197-SG
ISBN: 99197 1999 CP
Author: F.J. Boerio, E. Garcia, M.A. Hernhndez, F.J. Rodriguez and J. Genesca
$20.00
Picture for 99178 PERFORMANCE OF SUPER STATNLESS STEEL,
Available for download

99187 PERFORMANCE OF SUPER STATNLESS STEEL, TITANIUM AND CU-10NI ALLOYS IN CHLORINATED BRACKISH WATER

Product Number: 51300-99178-SG
ISBN: 99178 1999 CP
Author: A. Martinez, M. F. de Romero, 0. T. de Rincon, Z. Duque, L Araujo
$20.00
Picture for 99188 THE IMPLICATIONS OF THERMOMECHANICAL
Available for download

99188 THE IMPLICATIONS OF THERMOMECHANICAL PROCESSING FOR MICROBIOLOGICALLY INFLUENCED CORROSION

Product Number: 51300-99188-SG
ISBN: 99188 1999 CP
Author: Daniel W. Walsh
$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