Accession Number : ADA183054

Title :   An 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.

Descriptive Note : Summary rept. Jan 82-Jun 87,

Corporate Author : VIRGINIA TECH CENTER FOR ADHESION SCIENCE BLACKSBURG

Personal Author(s) : Skiles,Jean A ; Wightman,J P

PDF Url : ADA183054

Report Date : Jun 1987

Pagination or Media Count : 392

Abstract : 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 which 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.

Descriptors :   *ADHESIVE BONDING, *HEAT RESISTANT MATERIALS, *METAL METAL BONDS, ADHESIVE BONDING, ADHESIVES, ALUMINUM, ANODIC COATINGS, BONDED JOINTS, CHROMIC ACID, CORROSION RESISTANCE, HEAT RESISTANT MATERIALS, HYDROFLUORIC ACID, METALS, OXIDES, PHASE STUDIES, PHYSICAL PROPERTIES, POLYETHERS, RATIOS, SECONDARY, SOLUTIONS(GENERAL), STRENGTH(MECHANICS), STRUCTURAL MECHANICS, STRUCTURAL PROPERTIES, SULFONES, TEMPERATURE, VANADIUM, WEIGHT, TITANIUM ALLOYS, WELDMENTS, COMPUTER AIDED DESIGN, AIR FLOW, MICROSTRUCTURE, AIRFOILS, NOTCH SENSITIVITY, FRETTING, LAMINATES, HIGH STRENGTH ALLOYS

Subject Categories : Adhesives, Seals and Binders
      Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE