SYMPOSIA PAPER Published: 01 January 1986
STP33044S

Characterization of Al-Fe-Ce Alloys

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Characterization of Al-Fe-Ce alloys has been conducted in the areas of static and fatigue mechanical property behavior, corrosion behavior, and joining and fabrication methods. Evaluation of the elevated-temperature powder metallurgy materials, which were fabricated by the Aluminum Company of America (Alcoa) under Air Force Contract No. F33615-81-C-5096, was performed on both extruded and sheet products. The constant-amplitude fatigue and crack growth properties of these alloys are similar to those of 7091-T7E69 aluminum; however, no effect of R-ratio on fatigue crack growth was observed in the Al-Fe-Ce alloys. The corrosion resistance of the Al-Fe-Ce alloys is superior to that of other aluminum alloys, such as Alloys 7075, 2024, and 6061, under all conditions evaluated to date. Adhesive bonding, ultrasonic weldbonding, and spot welding have been demonstrated to be viable joining techniques. This research has helped to establish an initial data base on the Al-Fe-Ce alloys. Continuation of these studies will lead to application of these alloys, primarily as replacements for titanium.

Author Information

Langenbeck, SL
Lockheed Corp., Burbank, CA
Cox, JM
Structures and Materials Laboratory, Lockheed-California Co., Burbank, CA
Simenz, RF
Materials and Processes Department, Lockheed-California Co., Burbank, CA
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Details
Developed by Committee: B09
Pages: 450–463
DOI: 10.1520/STP33044S
ISBN-EB: 978-0-8031-4961-8
ISBN-13: 978-0-8031-0442-6