Study on the Impact Resistance of Bionic Layered Composite of TiC-TiB2/Al from Al-Ti-B4C System

Zhao, Qian; Liang, Yunhong; Zhang, Zhihui; Li, Xiujuan; Liu, Ren

doi:10.3390/ma9080708

Cited by 18 publications

(13 citation statements)

References 25 publications

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“…In the past decades, particulate reinforced aluminum matrix composites (AMCs) have attracted much attention in the field of structural and functional materials [1][2][3][4]. SiC p reinforced AMCs have been a hot research issue in recent years because of their excellent properties such as low density, high tensile strength, high elastic modulus and wear resistance, etc.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Qiu

Gao

Tang

et al. 2017

Metals

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Abstract:The nano-sized SiC p /Al-Cu composites were successfully fabricated by combining semisolid stirring with ball milling technology. Microstructures were examined by an olympus optical microscope (OM), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Tensile properties were studied at room temperature. The results show that the α-Al dendrites of the composites were strongly refined, especially in the composite with 3 wt. % nano-sized SiC p , of which the morphology of the α-Al changes from 200 µm dendritic crystal to 90 µm much finer equiaxial grain. The strength and ductility of the composites are improved synchronously with the addition of nano-sized SiC p particles. The as-cast 3 wt. % nano-sized SiC p /Al-Cu composite displays the best tensile properties, i.e., the yield strength, ultimate tensile strength (UTS) and fracture strain increase from 175 MPa, 310 MPa and 4.1% of the as-cast Al-Cu alloy to 220 MPa, 410 MPa and 6.3%, respectively. The significant improvement in the tensile properties of the composites is mainly due to the refinement of the α-Al dendrites, nano-sized SiC p strengthening, and good interface combination between the SiC p and Al-Cu alloys.

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Section: Introductionmentioning

confidence: 99%

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Qiu

Gao

Tang

et al. 2017

Metals

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“…In this study, a hot pressing-sintering in-situ reaction is used to prevent formation of voids in cermets [35,36]. High energy ball milling is used to activate boron, which is beneficial to reducing the reaction temperature of Cu-Ti-B systems [37,38,39], reducing the size of ceramic particles, and promoting the dispersion of the reinforcement phase in the matrix [40,41]. The elements Zr and Cr can be added to Cu-Ti-B systems to refine the ceramic particles and to promote the interfacial bonding between TiB 2 ceramic particles and the Cu matrix [42,43,44,45].…”

Section: Introductionmentioning

confidence: 99%

Effects of Cr and Zr Addition on Microstructures, Compressive Properties, and Abrasive Wear Behaviors of In Situ TiB2/Cu Cermets

et al. 2018

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In situ micro-TiB2/Cu cermets with a different TiB2 content (40, 50, and 60 vol %) were successfully fabricated by combustion synthesis (CS) and hot press consolidation in Cu-Ti-B systems. In addition, different contents of Cr and Zr were added to the Cu-Ti-B systems. The microstructure, mechanical properties, and abrasive wear properties of the TiB2/Cu cermets were investigated. As the ceramic content increased, the yield strength and compressive strength of the cermets were found to increase, while the strain decreased. An increase in load and abrasive particle size caused the wear volume loss of the TiB2/Cu cermets to increase. When the ceramic content was 60 vol %, the wear resistance of the TiB2/Cu cermets was 3.3 times higher than that of pure copper. The addition of the alloying elements Zr and Cr had a significant effect on the mechanical properties of the cermets. When the Cr content was 5 wt %, the yield strength, ultimate compressive strength, and microhardness of the cermets reached a maximum of 997 MPa, 1183 MPa, and 491 Hv, respectively. Correspondingly, when the Zr content was 5 wt %, those three values reached 1764 MPa, 1967 MPa, and 655 Hv, respectively, which are 871 MPa, 919 MPa, and 223 Hv higher than those of the unalloyed cermets. The wear mechanism of the in-situ TiB2/Cu cermets, and the mechanisms by which the strength and wear resistance were enhanced by the addition of Zr, were preliminarily revealed.

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“…It was the crossed‐lamellar structure, different extension direction of lamellae in middle and inner layer as well as the microhardness diversity of shells that enhanced the corresponding mechanical properties. Based on the characteristics of bionic model, a kind of bionic layered composite was fabricated successfully (Zhao, Liang, Zhang, Li, & Ren, ). The composite realized the macroscopical and microcosmic structure characteristics of White clam shell, exhibiting high mechanical strength and impact resistance.…”

Section: Introductionmentioning

confidence: 99%

Microstructure characteristics and mechanical properties of Meretrix lusoria shell

Zhao

Lin

Liang

et al. 2018

Microscopy Res & Technique

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The microstructure and mechanical properties of Meretrix lusoria shell were investigated. M. lusoria shell was comprised of three layers (outer layer, middle layer and inner layer). Outer layer with serried mastoid structure enhanced the connection strength with middle layer. The middle layer consisted of blocky pattern structure with porosity and crossed‐lamellar structure. The inner layer exhibited the typical crossed‐lamellar structure. Combined with structure characteristic, phase of aragonite confirmed the crossed‐lamellar structure further, building material base for mechanical properties including flexure strength (296.26 MPa), compression strength (6.71 MPa) and crack arrest ability. Microstructure of the shell was the function base of crack deflection phenomenon, which dispersed and defused the applied load via the change of crack extension direction. The investigation of M. lusoria shell provided bionic models for the design and fabrication of bioinspired composites in engineering fields. Research Highlights Microstructure and mechanical properties of Meretrix lusoria shell were investigated. Crossed‐lamellar structure was the microstructure characterization. M. lusoria shell owned high flexure strength and crack arrest property.

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Study on the Impact Resistance of Bionic Layered Composite of TiC-TiB2/Al from Al-Ti-B4C System

Cited by 18 publications

References 25 publications

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Effects of Cr and Zr Addition on Microstructures, Compressive Properties, and Abrasive Wear Behaviors of In Situ TiB2/Cu Cermets

Microstructure characteristics and mechanical properties of Meretrix lusoria shell

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