Accession Number:

ADA172313

Title:

An Interdisciplinary Approach to Predictive Modeling of Structural Adhesive Bonding. Characterization of Ti-6Al-4V Oxides and The Adhesive/Oxide Interphase.

Descriptive Note:

Semi-Annual rept. no. 88 Sep 85-Mar 86,

Corporate Author:

VIRGINIA TECH CENTER FOR ADHESION SCIENCE BLACKSBURG

Personal Author(s):

• Filbey, J. A.
• Wightman, J. P.

Report Date:

1986-08-01

Pagination or Media Count:

36.0

Abstract:

Ti-6A1-4V, a high strength, light weight corrosion resistant alloy, possesses many applications for structural adhesive bonding. This report covers the interaction of pretreated surfaces with heat, alkoxide primers, thin polymer films, structural epoxy, and hostile environments. The stability of the oxides at temperatures of 450 C is shown. Alkoxide primers enhance the durability of adhesively bonded aluminum. Characterization of alkoxide primers on Ti-6-4 has begun as well as evaluation of these primers in the wedge test. Thin polymer films on polished titanium are studied by grazing angle infrared spectroscopy. STEM, AES and XPS show the penetration of FM-300 into the porous oxide of CAA. Finally, the wedge test examines pretreatment stability in a variety of environments.

Descriptors:

• *OXIDES
• *ALUMINUM
• *ADHESIVES
• *TITANIUM ALLOYS
• *VANADIUM
• *ADHESIVE BONDING
• ANGLES
• STABILITY
• INFRARED SPECTROSCOPY
• STRUCTURAL MECHANICS
• THIN FILMS
• TEST METHODS
• PHASE STUDIES
• PRIMERS
• ENDURANCE(GENERAL)
• HIGH STRENGTH
• POLYMERIC FILMS
• ADVERSE CONDITIONS
• BONDING
• TITANIUM
• WEDGES
• POROUS MATERIALS
• GRAZING
• ALKOXY RADICALS

Subject Categories:

• Adhesives, Seals and Binders
• Properties of Metals and Alloys

Distribution Statement:

APPROVED FOR PUBLIC RELEASE