Accession Number : AD0914168

Title :   The Effects of Environmental Exposure on Strength Properties of AF-A-3639 Adhesive Bonded Joints.

Descriptive Note : Technical rept. Nov 70-Mar 71,

Corporate Author : AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Aponyi,Theodore J.

Report Date : AUG 1973

Pagination or Media Count : 41

Abstract : A new adhesive, AF-A-3639, (Hysol's ADX- 639), a 420 F capability tough adhesive, is characterized for its durability when exposed to hostile environments such as, heat aging plus salt spray, humid aging, humid aging and elevated temperature cycling, and fatigue. Specimens used in the evaluation are aluminum-to-aluminum and titanium-to-titanium. The adhesive exhibits excellent retention of initial strength after all the tests except for those at 420 F with titanium specimens. However, these lower strength levels are attributed to the cold phosphate etch used as a pretreatment for the titanium adherends. (Author-PL)

Descriptors :   (*ADHESIVES, ENVIRONMENTAL TESTS), (*BONDED JOINTS, ADHESIVES), AIRFRAMES, ALUMINUM ALLOYS, TITANIUM ALLOYS, HIGH TEMPERATURE, AGING(MATERIALS), ETCHING, SALT SPRAY TESTS, EPOXY RESINS, THERMOPLASTIC RESINS, STRESSES, SHEAR STRESSES, DEGRADATION, HUMIDITY, FATIGUE(MECHANICS), ADHESION

Subject Categories : Adhesives, Seals and Binders

Distribution Statement : APPROVED FOR PUBLIC RELEASE