1986-12-08

Durability of Lap-Shear Adhesive Joints with Coated Steels in Corrosive Environments 862009

Lap-shear strength degradation of epoxy bonded coated steels was studied with exposure to cyclic salt-spray and thermal environments. Joint strength degradation with cyclic salt-spray and humidity exposure is slow with coated steel adhereneds, e.g, hot-dip galvanized, electrogalvanized, galvannealed, and Zincrometal®, and fast with bare steel adherends. Corrosion and dissolution of the steel coating, not adhesive degradation, is the primary mechanism leading to the loss of joint strength in this environment. With unexposed samples, joint strength is limited by either the mechanical strength of the sheet or the adhesion of the coating. The mill and drawing oils used had little effect on initial adhesive joint strength.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 43% off list price.
Login to see discount.
Special Offer: With TechSelect, you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
X