Interdisciplinary approach to predictive modeling of structural adhesive bonding, chromic acid anodized Ti-6Al-4V: its characterization and its single lap bond strength to heat-resistant adhesives. Summary report, January 1982-June 1987

Technical Report · Mon Jun 01 00:00:00 EDT 1987

OSTI ID:6048010

Skiles, J A; Wightman, J P

Anodized titanium-aluminum-vanadium adhesive bonds exhibit improved corrosion resistance and a higher strength-to-weight ratio compared to conventional metal-bonding techniques for primary and/or secondary structural applications. This work was conducted to identify chromic acid (CA) anodization and bond process conditions that produced durable, structural applications. This work was conducted to identify chromic acid (CA) anodization and bond process conditions which produced durable, structural anodized titanium-aluminum-vanadium single lap bonds and to understand why these conditions were necessary. Heat-resistant adhesives tested had reported service temperatures greater than 423K, and were: polysulfone; polyethersulfone;polyphenylquinoxaline; polyetherimide, both unfilled and 20% glass filled; and 50% calcium-carbonate-filled polyimide. Hydrofluoric acid (HF) added to the CA anodization solution was necessary to produce structural bonds. Chromic acid hydrogen fluoride oxide was more porous, and thicker than the CA anodic oxide perhaps promoting physical and oxide/adhesive interphase mechanical interlock.

• Research Organization: Virginia Polytechnic Inst. and State Univ., Blacksburg (USA). Center for Adhesion Science
• OSTI ID: 6048010
• Report Number(s): AD-A-183054/6/XAB; CAS/CHEM-87-2
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
BONDING
CORROSION RESISTANCE
HEAT RESISTANT MATERIALS
TITANIUM BASE ALLOYS
VANADIUM ALLOYS
ADHESIVES
AIR FLOW
AIRFOILS
ANODIZATION
CHROMIC ACID
HYDROFLUORIC ACID
METALS
MICROSTRUCTURE
OXIDES
PHASE STUDIES
PHYSICAL PROPERTIES
SULFONES
WEIGHT
ALLOYS
CHALCOGENIDES
CHEMICAL COATING
CHROMIUM COMPOUNDS
CORROSION PROTECTION
CRYSTAL STRUCTURE
DEPOSITION
ELECTROCHEMICAL COATING
ELECTROLYSIS
ELEMENTS
FABRICATION
FLUID FLOW
GAS FLOW
HYDROGEN COMPOUNDS
INORGANIC ACIDS
JOINING
LYSIS
MATERIALS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
SURFACE COATING
TITANIUM ALLOYS
TRANSITION ELEMENT COMPOUNDS
360105* - Metals & Alloys- Corrosion & Erosion
360103 - Metals & Alloys- Mechanical Properties