Effect of surface texture spacing on interface heat transfer and tensile property of laser-welded steel/CFRTP joint

Article Engineering, Chemical

Study on the interface bond strength of DP780 steel/CFRP composite laminate based on hot-press curing integration

Zhiqiang Zhang et al.

Summary: Hybrid parts made of metal and carbon fiber reinforced plastic are increasingly used in the automobile industry. Laser treatment improves the interface bond strength and enhances the performance of the parts.

JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY (2023)

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Article Engineering, Chemical

Influence of artificial UV degradation on the performance of steel/GFRP single-lap joints during exposure time

Hiasmim Rohem Gualberto et al.

Summary: Metal structures can be repaired with composites using adhesives. However, exposure to ultraviolet radiation can degrade the polymeric materials in the adhesive, leading to a decline in shear strength and a reduction in the adhesive's glass transition temperature (Tg). The degradation of the adhesive's polymeric chains is associated with the reduction in Tg and shear strength of the joint. Therefore, the application of such materials in UV-exposed areas should consider their poorer performance regarding degradation.

JOURNAL OF ADHESION (2023)

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Article Materials Science, Composites

Developing chemical interaction and achieving mechanical interlock to manufacture high-reliability Polypropylene/A6061-T6 aluminum alloy FAW joints

Mengjia Xu et al.

Summary: This work proposes an interfacial design strategy to manufacture high-reliability PP/A6061-T6 aluminum alloy hybrid structures by friction assisted welding. The strategy involves grafting carboxy group on PP and building a surficial microstructure on 6061 to develop interfacial covalent and hydrogen bonds. The surface microstructures enable good wetting and fast spread of melt PP, providing sufficient reaction area and time for the development of interfacial chemical interaction.

COMPOSITES SCIENCE AND TECHNOLOGY (2023)

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Article Nanoscience & Nanotechnology

Heteroatom Introduction to Reconstruct Interfacial Chemical Structures for High-Reliability CFRTP/A6061-T6 Hybrid Structures

Xiaoyang Bi et al.

Summary: This study presents a bottom-up strategy of introducing heteroatoms into CFRTP/metal interfaces to reconstruct the interfacial chemical structures and manufacture high-reliability hybrid structures. By introducing oxygen and hydrogen heteroatoms through simple and green plasma polymerization, the joint strength of CFRTP/6061 hybrid structures is strengthened from 8.82 to 23.97 MPa. This heteroatom introduction strategy provides fresh insights into interfacial design concepts and has important implications for the future application of high-reliability CFRTP/metal hybrid structures.

ACS APPLIED MATERIALS & INTERFACES (2023)

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Article Materials Science, Composites

Shear strength and failure modes of double-lap bi-material CFRP/Ni-Cr alloy joint under severe environmental conditions

Van-Tho Hoang et al.

Summary: This study systematically investigated the mechanical behaviors of double-lap bi-material joints under various environmental conditions and found significant differences in shear strength and failure mode. Analyzing fractured surfaces and conducting finite element simulations, the study identified the main failure modes. Further evaluation using SEM and EDS techniques showed the microstructures and chemical compositions of the fracture surfaces under different conditions.

ADVANCED COMPOSITE MATERIALS (2022)

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Article Engineering, Multidisciplinary

A simple and green strategy for preparing flexible thermoplastic polyimide foams with exceptional mechanical, thermal-insulating properties, and temperature resistance for high-temperature lightweight composite sandwich structures

Haitao Zhang et al.

Summary: The study successfully fabricated thermoplastic PI foams with excellent thermal-insulating properties and temperature resistance by linking flexible blocks into rigid polymeric structures through a simple aqueous strategy to construct hydrogen-bonding networks.

COMPOSITES PART B-ENGINEERING (2022)

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Article Engineering, Multidisciplinary

Femtosecond laser fabricated micro/nano interfacial structures to strengthen CFRPEEK/A6061-T6 FLJ hybrid joints

Xiaoyang Bi et al.

Summary: In this study, a femtosecond laser was used to modify the surface of A6061-T6 to fabricate stable CFRPEEK/6061 hybrid joints. The results showed that femtosecond laser modification effectively enhanced bonding strength and imparted superhydrophobic properties to the 6061 surface.

COMPOSITES PART B-ENGINEERING (2022)

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Article Mechanics

Influence of laser welding power on steel/CFRP lap joint fracture behaviors

Hongbo Xia et al.

Summary: In this study, DP590 steel and CFRP were successfully joined by laser welding, and experiments and simulations were conducted to investigate the influence of laser power on the joint characteristics, bonding mechanism, and fracture behavior. The results showed that the melting width and depth of CFRP increased with increasing laser power. Different fracture modes were observed at different laser powers, and chemical bonds formed at the interface were beneficial for improving fracture load.

COMPOSITE STRUCTURES (2022)

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Article Engineering, Multidisciplinary

Characterization and modeling of continuous carbon fiber-reinforced polycarbonate under multiaxial loads

Christian Andriss et al.

Summary: This study investigates the characterization of continuous fiber-reinforced thermoplastic materials under multi-axial loading conditions and establishes a model for their non-linear mechanical behavior. An elasto-plastic framework is used to simplify the material response modeling, with proposed criteria for fracture and yielding based on experimental data. The model predictions for multi-axial loads are validated using biaxial material data.

COMPOSITES PART B-ENGINEERING (2022)

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Article Nanoscience & Nanotechnology

A Conceptual Strategy toward High-Reliability Metal-Thermoplastic Hybrid Structures Based on a Covalent-Bonding Mechanism

Xiaoyang Bi et al.

Summary: Metal-thermoplastic hybrid structures have shown effectiveness in achieving lightweight design in aircraft components. However, the differences in physical and chemical properties between metal and thermoplastic pose challenges in fabricating high-reliability hybrid structures. A study discovers that covalent bonding at metal/thermoplastic interfaces plays a crucial role in the interfacial reliability of these structures. By grafting carboxyl functional group on polyetheretherketone (PEEK), the density and strength of interfacial covalency is increased, leading to the fabrication of high-reliability hybrid structures between PEEK and A6061-T6 aluminum alloy.

ACS APPLIED MATERIALS & INTERFACES (2022)

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Article Engineering, Multidisciplinary

Joining CFRP/Ti stacks by directed energy deposition: Surface topography effects on interface formation and bonding

Yue Zhou et al.

Summary: This study investigated the effects of surface topography on the interfacial formation mechanism of CFRP/Ti stacks by designing and structuring four different surface topographies on titanium sheets. The results showed that applying patterned titanium sheets significantly improved interfacial bonding strength by preventing slippage or shearing and reducing interfacial residual stress and distortion.

COMPOSITES PART B-ENGINEERING (2022)

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Article Engineering, Manufacturing

Prediction and fitting of weld morphology of Al alloy-CFRP welding-rivet hybrid bonding joint based on GA-BP neural network

Hongyang Wang et al.

Summary: The study established a neural network model to predict the influence of laser power, welding current, defocused distance, and welding speed on the morphology of the welding joint in riveting-welding hybrid bonding, showing good predictive accuracy. This method provides a new way to explore energy transfer and real-time monitoring of laser induced TIG hybrid welding quality.

JOURNAL OF MANUFACTURING PROCESSES (2021)

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Article Engineering, Multidisciplinary

Carbon fiber reinforced thermoplastic composites and TC4 alloy laser assisted joining with the metal surface laser plastic-covered method

Junke Jiao et al.

Summary: The study investigated the impact of a metal surface laser plastic-covered method and high-speed laser rotational welding technology on the joining quality between CFRTP and TC4 alloy, with significant improvements in joint strength and fatigue resistance observed as a result.

COMPOSITES PART B-ENGINEERING (2021)

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Article Nanoscience & Nanotechnology

Enhancing Interfacial Reliability of Metal-Thermoplastic Hybrid Joints via Adding Carbon Fiber and Adjusting Welding Heat Input

Xiaoyang Bi et al.

Summary: The introduction of carbon fibers enhances the mechanical properties but weakens the corrosion resistance of metal-thermoplastic hybrid joints. Adjusting the welding heat input can improve the interfacial reliability of the joints with high strength and corrosion resistance.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Physical

Fatigue Performance of Metal-Composite Friction Spot Joints

Seyed Mohammad Goushegir et al.

Summary: Friction spot joining was used to investigate the fatigue performance of aluminum alloy 2024/carbon-fiber-reinforced poly(phenylene sulfide) joints, showing an infinite life of 25-35% quasi-static strength at 10(6) cycles and good performance under quasi-static loading.

MATERIALS (2021)

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Influence of laser process parameters on the characteristic of 30CrMnSiA steel substrate and adhesively bonded joints

Ziwei Feng et al.

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Direct joining of thermoplastic ABS to aluminium alloy 6061-T6 using friction lap welding

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Influence of defocus distance on laser joining of CFRP to titanium alloy

Jianhui Su et al.

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Achieving strong friction lap joints of carbon-fiber reinforced plastic and metals by modifying metal surface structure via laser-processing pretreatment

L. H. Wu et al.

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A high-speed metal-to-polymer direct joining technique and underlying bonding mechanisms

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Achieving a strong polypropylene/aluminum alloy friction spot joint via a surface laser processing pretreatment

S. C. Han et al.

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On formation of Al-O-C bonds at aluminum/polyamide joint interface

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Mechanical behavior of AA5053/polyetheretherketone (PEEK) made by Friction Assisted Joining

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Ultrasonic spot welding of carbon fiber reinforced epoxy composites to aluminum: mechanical and electrochemical characterization

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Direct joining of oxygen-free copper and carbon-fiber-reinforced plastic by friction lap joining

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Effect of metal micro-structuring on the mechanical behavior of polymer-metal laser T-joints

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Effect of surface texture spacing on interface heat transfer and tensile property of laser-welded steel/CFRTP joint

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