ESA STM-276 Assessment of Chemical Conversion Coatings for the Protection of Aluminum Alloys

ESA STM-276 Assessment of Chemical Conversion Coatings for the Protection of Aluminum Alloys
  • Version
  • 168 Downloads
  • 8.49 MB File Size
  • 2 File Count
  • June 19, 2020 Create Date
  • June 19, 2020 Last Updated
Scroll for Details

In this study, the aluminium alloys A17075, Al22l9 and Al5083 were used as substrates for evaluation of the chemical conversion coatings. Among various chemical conversion coating systems, three alternative conversion coating pretreatments were selected for evaluation: Alodine 5700, Nabutan STI/310 and Iridite NCP. The chromium (VI) conversion coating Alodine 1200 was used as the reference. The quality assessment of conversion coatings was evaluated by optical and scanning electron microscopy. Coated samples were characterised by salt spray exposure in order to simulate ground storage conditions; thermal cycling under vacuum, which simulates an in-orbit space environment; and electrical resistivity, as spacecraft sub-systems are electrically grounded to one another

FileAction
ESA-STM-276.pdfDownload 
ESA-STM-276.jpgDownload 

Comment On This Post

Your email address will not be published. Required fields are marked *

ESA STM-276 Assessment of Chemical Conversion Coatings for the Protection of Aluminum Alloys

ESA STM-276 Assessment of Chemical Conversion Coatings for the Protection of Aluminum Alloys
  • Version
  • 168 Downloads
  • 8.49 MB File Size
  • 2 File Count
  • June 19, 2020 Create Date
  • June 19, 2020 Last Updated
Scroll for Details

In this study, the aluminium alloys A17075, Al22l9 and Al5083 were used as substrates for evaluation of the chemical conversion coatings. Among various chemical conversion coating systems, three alternative conversion coating pretreatments were selected for evaluation: Alodine 5700, Nabutan STI/310 and Iridite NCP. The chromium (VI) conversion coating Alodine 1200 was used as the reference. The quality assessment of conversion coatings was evaluated by optical and scanning electron microscopy. Coated samples were characterised by salt spray exposure in order to simulate ground storage conditions; thermal cycling under vacuum, which simulates an in-orbit space environment; and electrical resistivity, as spacecraft sub-systems are electrically grounded to one another

FileAction
ESA-STM-276.pdfDownload 
ESA-STM-276.jpgDownload 
17,005 Documents in our Technical Library
2756953 Total Downloads

Search The Technical Library

Newest Additions

NASA-RP-1060 Subsonic Aircraft: Evolution and the Matching of Size to Performance
NASA-RP-1060 Subsonic Aircraft: Evolution and the Matching of Size to Performance
AA-CP-20212-001
AA-CP-20212-001
ADPO10769 Occurrence of Corrosion in Airframes
The purpose of this lecture is to provide an overview ...
MIL-STD-1759 Rivets and Rivet Type Fasteners Preferred for Design
The purpose of this book form standard is to provide ...
MIL-STD-810G Environmental Engineering Considerations and Laboratory Tests
This standard contains materiel acquisition program planning and engineering direction ...