Accession Number:

ADA053944

Title:

Adhesive Bonded Steel: Bond Durability as Related to Selected Surface Treatments

Descriptive Note:

Technical rept.

Corporate Author:

ARMY ARMAMENT RESEARCH AND DEVELOPMENT CENTER DOVER NJ LARGE CALIBER WEAPON SYSTEMS LAB

Personal Author(s):

Report Date:

1977-12-01

Pagination or Media Count:

41.0

Abstract:

High-strength 4340 carbon steel single lap-shear coupons were treated with four selected surface preparations 1 wire brush, 2 sodium metasilicate Triton X-200 solution, 3 phosphoric acidethanol solution, and 4 potassium iodidephosphoric acid iodophosphate solution. Bonded joints were made with all four surface preparations using 3Ms EC 2214 epoxy and B. F. Goodrichs TAME 200 acrylic adhesive. The joints were subjected to lap shear strength-control testing at 23 C and 60 C, then to hot water soak at 60 C for 100, 500, and 1,000 hours followed by testing at 60 C and stressed durability at 60 C and 95 RH until failure. Results indicate only slight differences in control test results for the different surface treatments using EC 2214, but very large differences using TAME 200. Durability of joints using both adhesives clearly favors the iodophospate and phosphoric acidethanol treatments.

Subject Categories:

  • Adhesives, Seals and Binders
  • Metallurgy and Metallography
  • Fabrication Metallurgy
  • Plastics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE