A Comparison of Chromic Acid and Sulfuric Acid Anodizing
Author:   National Aeronaut Administration (Nasa)
Publisher:   Createspace Independent Publishing Platform
ISBN:  

9781724979865


Pages:   38
Publication Date:   09 August 2018
Format:   Paperback
Availability:   Available To Order   Availability explained
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A Comparison of Chromic Acid and Sulfuric Acid Anodizing


Overview

Because of federal and state mandates restricting the use of hexavalent chromium, it was deemed worthwhile to compare the corrosion protection afforded 2219-T87 aluminum alloy by both Type I chromic acid and Type II sulfuric acid anodizing per MIL-A-8625. Corrosion measurements were made on large, flat 2219-T87 aluminum alloy sheet material with an area of 1 cm(exp 2) exposed to a corrosive medium of 3.5-percent sodium chloride at pH 5.5. Both ac electrochemical impedance spectroscopy and the dc polarization resistance techniques were employed. The results clearly indicate that the corrosion protection obtained by Type II sulfuric acid anodizing is superior, and no problems should result by substituting Type II sulfuric acid anodizing for Type I chromic acid anodizing. Danford, M. D. Marshall Space Flight Center NASA-TM-108383, NAS 1.15:108383 ...

Full Product Details

Author:   National Aeronaut Administration (Nasa)
Publisher:   Createspace Independent Publishing Platform
Imprint:   Createspace Independent Publishing Platform
Dimensions:   Width: 21.60cm , Height: 0.20cm , Length: 28.00cm
Weight:   0.115kg
ISBN:  

9781724979865


ISBN 10:   1724979868
Pages:   38
Publication Date:   09 August 2018
Audience:   General/trade ,  General
Format:   Paperback
Publisher's Status:   Active
Availability:   Available To Order   Availability explained
We have confirmation that this item is in stock with the supplier. It will be ordered in for you and dispatched immediately.

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