Effect of elevated test temperature on the tensile strength and failure mechanism of hot-pressed dissimilar joints of laser ablation-treated AA5754-H111 and thermoplastic composite
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Nahit Öztoprak
and
Gökçe Mehmet Gençer
Abstract
Evaluation of directly bonded single-lap joint (SLJ) obtained using Al5754 alloy and 20 wt% long glass fiber-reinforced polypropylene (PP) is performed via the lap-shear testing at various temperatures. A fiber laser is used to form a multi-groove microstructure on the aluminum (Al) surface. The bonding regions are investigated microscopically before and after the mechanical testing. Dissimilar joint is manufactured under a 100 kN force at 200 °C for 60 min through hot-pressing technique without using any adhesives. Afterward, lap-shear strength of the joints is determined under elevated working temperatures (25, 75 and 125 °C). Damaged surfaces are also scrutinized for studying the failure mechanism of the joints. According to the experimental results, mechanical anchoring between the Al alloy substrate and thermoplastic composite (TPC) is formed at the interface through the applied laser treatment. Strength exhibits a significant decrease with the test temperature increasing from 25 to 125 °C. Fiber/matrix debonding is the dominant failure mode in the composite adherend. The SEM observations also highlight the pulled-out fibers in the PP composite at the elevated temperatures.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Funding: This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
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Competing interest statement: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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© 2022 Walter de Gruyter GmbH, Berlin/Boston
Articles in the same Issue
- Frontmatter
- Effect of heat treatment on the electrical and mechanical properties of a Cu–Ni–Si cast alloy
- Effect of isothermal heat treatments under Ms temperature on the microstructures and mechanical properties of commercial high-silicon spring steel
- Effect of austenitizing temperature on microstructure and properties of a high-speed cobalt steel
- Effect of hot rolling process parameters on the microstructure and mechanical properties of continuously cooled low-carbon high-strength low-alloy (HSLA) steel
- Mechanical and tribological properties of a WC-based HVOF spray coated brake disc
- Microstructure and mechanical properties of AISI 304/DUROSTAT 500 steel double-sided TIG welds
- A Nelder Mead-infused INFO algorithm for optimization of mechanical design problems
- Modeling of hexagonal honeycomb hybrids for variation of Poisson’s ratio
- Effect of elevated test temperature on the tensile strength and failure mechanism of hot-pressed dissimilar joints of laser ablation-treated AA5754-H111 and thermoplastic composite
- Steel shot peening effects on friction stir welded AA2014-T6 aluminum alloys
- Improvement of incremental sheet metal forming with the help of a pressurised fluid system
- Nugget formation, microstructural features and strength of resistance spot welded cold-rolled dual-phase steel lap joints for automotive applications
- African vultures optimization algorithm for optimization of shell and tube heat exchangers
- Effect of welding current on properties of activated gas tungsten arc super duplex stainless steel welds
Articles in the same Issue
- Frontmatter
- Effect of heat treatment on the electrical and mechanical properties of a Cu–Ni–Si cast alloy
- Effect of isothermal heat treatments under Ms temperature on the microstructures and mechanical properties of commercial high-silicon spring steel
- Effect of austenitizing temperature on microstructure and properties of a high-speed cobalt steel
- Effect of hot rolling process parameters on the microstructure and mechanical properties of continuously cooled low-carbon high-strength low-alloy (HSLA) steel
- Mechanical and tribological properties of a WC-based HVOF spray coated brake disc
- Microstructure and mechanical properties of AISI 304/DUROSTAT 500 steel double-sided TIG welds
- A Nelder Mead-infused INFO algorithm for optimization of mechanical design problems
- Modeling of hexagonal honeycomb hybrids for variation of Poisson’s ratio
- Effect of elevated test temperature on the tensile strength and failure mechanism of hot-pressed dissimilar joints of laser ablation-treated AA5754-H111 and thermoplastic composite
- Steel shot peening effects on friction stir welded AA2014-T6 aluminum alloys
- Improvement of incremental sheet metal forming with the help of a pressurised fluid system
- Nugget formation, microstructural features and strength of resistance spot welded cold-rolled dual-phase steel lap joints for automotive applications
- African vultures optimization algorithm for optimization of shell and tube heat exchangers
- Effect of welding current on properties of activated gas tungsten arc super duplex stainless steel welds
