Friction Spot Joining of aluminum alloy 2024-T3 and carbon-fiber-reinforced poly(phenylene sulfide) laminate with additional PPS film interlayer: Microstructure, mechanical strength and failure mechanisms

Author(s)

Andre, Natalia M. ^[1] ; Goushegir, Seyed M. ^[2] ; dos Santos, Jorge F. ^[2] ; Canto, Leonardo B. ^[1] ; Amancio-Filho, Sergio T. ^{[2, 3]}

Affiliation

^[1] Fed Univ Sao Carlos UFSCar, Postgrad Program Mat Sci & Engn, Sao Carlos, SP - Brazil

^[2] Helmholtz Zentrum Geesthacht, Inst Mat Res, Ctr Mat & Coastal Res, Mat Mech, Solid State Joining Proc, D-21502 Geesthacht - Germany

^[3] Hamburg Univ Technol, Inst Polymer Composites, Hamburg - Germany

• Document type: Journal article
• Source: COMPOSITES PART B-ENGINEERING; v. 94, p. 197-208, JUN 1 2016.
• Web of Science Citations: 25

Abstract

Friction Spot Joining is an innovative friction-based joining technique for metal polymer hybrid structures. In this work, aluminum alloy 2024-T3 and CF-PPS friction-spot joints were produced with additional PPS film interlayer. The joints were investigated in terms of the microstructure, mechanical performance under quasi-static loading and failure mechanisms. Macro- and micro-mechanical interlocking as well as adhesion forces were identified to dictate bonding mechanisms in the FSp joint with film interlayer. The ultimate lap shear force of the joints (2700 +/- 115 N up to 3070 +/- 165 N) were 20% -55% higher than the corresponding joints without interlayer, due to the larger bonding area, better load distribution and improved micro-mechanical interlocking. The failure analysis of the joints revealed a mixture of adhesive-cohesive failure, whereas cohesive failure was dominant. (C) 2016 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 14/09271-0 - Friction Spot Joining of carbon fiber reinforced PPS and AA2024-T3 with PPS film interlayer
• Grantee: Natália Manente André
• Support Opportunities: Scholarships in Brazil - Master