Environmental Durability of Aircraft Aluminum Alloy Skin Materials

Document Number: 931229

Date Published: May 1993

Author(s):
K. Patni - Cessna Aircraft Co.
A. Eftekhari - Cessna Aircraft Co.
V. Gondhalekar - Cessna Aircraft Co.
J. Chaudhuri - Wichita State Univ.
Y. M. Tan - Wichita State Univ.

Abstract:
This paper compares the environmental durability of currently used as well as some of the potential aircraft aluminum alloy skin materials. A simple test was developed to evaluate the environmental durability by simultaneous application of fatigue loads and aerated salt water attack. Alclad alloys showed excellent resistance to corrosion fatigue. On the other hand, 7475 alloy and new potential material 6013 alloy experienced inter-granular corrosion at the fatigue crack origin area. The test results also indicated the significance of corrosion preventive coatings to increase the age of aircraft.

File Size: 3422K
Product Status: In Stock

See other papers presented at General, Corporate & Regional Aviation Meeting & Exposition, May 1993, Wichita, KS, USA, Session: General, Corporate & Regional Aviation Meeting & Exposition

Purchase more technical papers and save! With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay. Learn more >