Enhanced Properties of Ti/Al Laminated Composite Reinforced by High-Entropy Alloy Particles

Wang, Enhao; Lv, Lifeng; Kang, Fuwei; Li, Shangzhuo; Li, Jiaqi; Tian, Yuan; Jiang, Wei; Song, Xiaogang

doi:10.3390/met13071227

Cited by 3 publications

(1 citation statement)

References 34 publications

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“…), as well as formation of intermetallic phases [31]. Possible development of intermetallics on the interfaces is one of the greatest disadvantages of laminated composites [32], as they are typically brittle and can contribute to debonding of the layers and consequently decrease the mechanical properties and lifetime of the laminate [33]. On the other hand, laminates can also be manufactured at room temperature using methods of (intensive and severe) plastic deformations.…”

Section: Introductionmentioning

confidence: 99%

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Kunčická,

Kocich

2023

Materials

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The study presents a method to prepare Al/Cu laminated conductors featuring two different stacking sequences using rotary swaging, a method of intensive plastic deformation. The primary focus of the work was to perform detailed characterization of the effects of room temperature swaging on the development of microstructures, including the Al/Cu interfaces, and internal misorientations pointed to the presence of residual stress within the laminates. The results revealed that both the Al and Cu components of the final laminates with 5 mm in diameter featured fine, more or less equiaxed, grains with no dominating preferential texture orientations (the maximum observed texture intensity was 2.3 × random for the Cu components of both the laminates). This fact points to the development of dynamic restoration processes during swaging. The analyses of misorientations within the grains showed that residual stress was locally present primarily in the Cu components. The Al components did not feature a substantial presence of misorientations, which confirms the dynamic recrystallization. Tensile testing revealed that the laminates with both the designed stacking sequences exhibited comparable UTS (ultimate tensile strength) of almost 280 MPa. However, notable differences were observed with regard to the plasticity (~3.5% compared to less than 1%). The laminate consisting of Al sheath and Cu wires exhibited very low plasticity as a result of significant work hardening of Al; this hypothesis was also confirmed with microhardness measurements. Observations of the interfaces confirmed satisfactory bonding of both the metallic components.

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Section: Introductionmentioning

confidence: 99%

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Kunčická,

Kocich

2023

Materials

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Microstructure and High-Temperature Mechanical Properties of CrMnFeCoNi/TiAl Composites Prepared by Powder Metallurgy

Cai,

Duan,

Zou

et al. 2024

J. of Materi Eng and Perform

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Molecular Dynamics Simulation of Temperature and Ti Volume Fraction on Compressive Properties of Ti/Al Layered Composites

Chen,

Wang,

Yan

et al. 2024

Metals

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Based on molecular dynamics simulation, this work investigated the influences of temperature and Ti volume fractions on the compressive deformation of Ti/Al layered composites. According to the simulation, the initial dislocations during compression are concentrated on the Al side, dominated by 1/6<211> and 1/6<112> dislocations, and the 1/2<101> and 1/6<211> dislocations cross the Ti/Al interface from the Al side to the Ti side. It is found that an increase in temperature helps dislocations to form at lower strains, which leads to a decrease in the compressive strength and an increase in the plasticity of the structure. As expected, the Ti volume fraction has a significant impact on the compressive properties of Ti/Al layered composites, and the compressive strength of the material increases with the increase in the Ti volume fraction. At temperatures above 400 K, the reduction rate of compressive strength becomes smaller, which is due to the formation of new ordered metal compounds between Ti and Al. When the volume fraction of Ti is lower than that of Al, plastic deformation mainly occurs on the Ti side, dominated by 1/6<112> dislocations. In contrast, the types of dislocations across the Ti/Al interface and on the Al side are dominated by 1/2<110> and 1/2<011>. When the Ti volume fraction becomes comparable with that of Al, the plastic deformation is transferred from the Ti side to the Al side, and the plasticity of the sample decreases. The optimal compressive properties of Ti/Al layered composites are observed at a Ti volume fraction of 40%, which provides guidance for the structural design of Ti/Al layered composites.

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Enhanced Properties of Ti/Al Laminated Composite Reinforced by High-Entropy Alloy Particles

Cited by 3 publications

References 34 publications

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Effect of Stacking Sequence on Mechanical Properties and Microstructural Features within Al/Cu Laminates

Microstructure and High-Temperature Mechanical Properties of CrMnFeCoNi/TiAl Composites Prepared by Powder Metallurgy

Molecular Dynamics Simulation of Temperature and Ti Volume Fraction on Compressive Properties of Ti/Al Layered Composites

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