The Durability of Epoxy Adhesive Bonds Formed with Titanium Alloy

Abstract

The durability of adhesive bonds formed between titanium alloy (Ti-6A1-4V) and rubber toughened epoxy structural adhesives used for repair bonding applications was examined. Two surface treatments were studied; the grit-blast and silane method, currently employed for titanium repairs on F-111 at RAAF Amberley and the F/A-18 SRM method which uses Pasa-Jell 107, a proprietary based toxic chemical treatment Results from wedge style durability tests indicated the grit-blast and silane pre-treatment provided notably better performance than the Pasa-Jell 107 pre-treatment for epoxy bonds formed with Ti-6A1AV alloy. Addition of BR127 primer to the pre-treated surfaces did not offer substantial improvement in durability performance. The durability of titanium-epoxy adhesive bonds for the grit-blast and silane pre-treatment on titanium was inferior to the performance observed on aluminum alloys. Further research will be required to improve the performance of the grit-blast and silane treatment on titanium to levels observed for aluminium.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2002
Accession Number
ADA409002

Entities

People

  • Andrew Ridder

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Adhesives
  • Air Force
  • Aircrafts
  • Aluminum Alloys
  • Australia
  • Chemistry
  • Mechanical Properties
  • Physical Chemistry
  • Physical Properties
  • Resilience
  • Standards
  • Surface Chemistry
  • Surface Finishing
  • Surface Roughness
  • Titanium Alloys
  • Universities

Fields of Study

  • Materials science

Readers

  • Powder metallurgy of Titanium alloys.
  • Surface Coatings Technology.