The importance of interfacial stress-affected zone in evading the strength-ductility trade-off of heterogeneous multi-layered composites

Wu, Hao; Huang, Meng; Xia, Yingjie; Li, Xuewen; Li, Rengeng; Liu, Chenglu; Gan, Weimin; Xiao, Tiqiao; Li, Geng; Liu, Qing; Fan, Guohua

doi:10.1016/j.ijplas.2022.103485

Cited by 36 publications

(5 citation statements)

References 105 publications

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“…Additionally, the exceptional corrosion resistance of titanium matrix composites plays a crucial role in extending the service life of components and ensuring aircraft safety, making them indispensable in the aviation industry [4][5][6]. The combination of carbon materials' unmatched thermal conductivity [7] and titanium's exceptional mechanical properties [8] further enhances the potential of TMCs [9][10][11][12][13]. This unique synergy holds great promise for the development of lightweight aircraft components that can meet stringent performance requirements while providing excellent heat transfer capabilities.…”

Section: Introductionmentioning

confidence: 99%

Grain Refinement and Mechanical Enhancement of Titanium Matrix Composites with Nickel-Coated Graphene Nanoflakes: Influence of Particle-Size Mismatch

Zhang,

Min,

et al. 2024

Crystals

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A novel type of titanium matrix composite (TMC) with a uniform network microstructure has been successfully fabricated by adjusting particle-size mismatch (Φ). This study can also improve the understanding of the effects of particle size on microstructure and mechanical properties, particularly in titanium matrix composites reinforced with graphite flakes (GNFs). Microstructural analysis reveals the absence of noticeable defects, and significant grain refinements have been realized. The experimental results indicate that the yield strength of the mismatched composite is improved by 24.75% compared to that of normal composites. The micro-hardness also exhibits a 10.3% increase. These enhancements can be attributed to the introduction of particle-size mismatch, the refinement of the microstructure, and the deflection of interface cracks. The presence of distorted GNF lattices in the interface micro-region of the composites primarily results from the appropriate sizing of different particles.

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Section: Introductionmentioning

confidence: 99%

Grain Refinement and Mechanical Enhancement of Titanium Matrix Composites with Nickel-Coated Graphene Nanoflakes: Influence of Particle-Size Mismatch

Zhang,

Min,

et al. 2024

Crystals

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“…Due to the plastic incompatibility between the hard and soft zones in HS materials [8], geometrically necessary dislocations (GNDs) in the soft zones pile up and accumulate near the zone boundaries, generating back stress in the soft zones and positive stress in the hard zones, which collectively produce heterogeneous deformation-induced (HDI) stresses, thereby increasing the strength and ductility of the material [9][10][11]. HS materials [12] include heterogeneous lamellar structured materials [13], gradient structured materials [14][15][16][17][18], lamellar structured materials [19][20][21], and bimodal/multimodal structures [22,23]. HS materials without metallurgical bonding interfaces have been applied in the field of armor, such as ceramic/metal composite armor, which has attracted a lot of attention for its excellent ballistic performance [24,25].…”

Section: Introductionmentioning

confidence: 99%

“…Currently, for HS materials, researchers mainly focus on their mechanical properties under quasi-static conditions [29][30][31][32][33][34]. There are fewer studies on the dynamic deformation behavior and microstructure evolution of HS materials under high-speed-impact conditions [19,20]. He et al [35] characterized the dynamic deformation behavior of HS materials of low-carbon steel/304 stainless steel at high strain rates and found that the difference in hardness between the two components in HS materials is an important factor influencing the extension of the adiabatic shear band (ASB).…”

Section: Introductionmentioning

confidence: 99%

Influence of Interface Type on Dynamic Deformation Behavior of 3D-Printed Heterogeneous Titanium Alloy Materials

Li,

Luo,

Wang

et al. 2024

Materials

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Using the Split Hopkinson Pressure Bar technique, strain-limited dynamic compressive loading experiments were performed on TA1/TA15 heterostructure (HS) materials. The plastic deformation mechanisms, fracture forms, and energy absorption properties of an HS material with a metallurgical bonding interface (MB) and an HS material without a metallurgical bonding interface (NMB) are compared and analyzed. The results show that there is no significant difference between the two deformation mechanisms. The fracture forms are all “V-shaped” fractures within the TA1 part. The NMB was carried for 57 μs before failure and absorbed 441 J/cm3 of energy. The MB was carried for 72 μs before failure and absorbed 495 J/cm3 of energy. Microstructure observations show that there is a coordinated deformation effect near the MB interface compared to the NMB, with both TA1 and TA15 near the interface carrying stresses. This causes an enhancement of the MB load-bearing time and a 12% increase in energy absorption.

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“…At 77 K, Ti-6Al-4V ELI, a two-phase titanium alloy containing a certain amount of body-centered cubic (BCC) β phases showcases remarkable specific strength and toughness; therefore, it is widely employed in aerospace cryogenic temperature engineering [1][2][3][4]. FG Ti-6Al-4V ELI typically demonstrates a significantly elevated strength compared to materials with conventional grain sizes larger than several tens of micrometers [5].…”

Section: Introductionmentioning

confidence: 99%

Revealing the Superior Post-Necking Elongation in the Fine-Grained Ti-6Al-4V ELI at Cryogenic Temperature

Gao,

Li,

et al. 2024

Metals

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The mechanical properties of a fine-grained (FG) Ti-6Al-4V extra-low interstitial (ELI) alloy were investigated by tensile tests at 298 K and 77 K. The experimental results indicated that, at 77 K, the alloy exhibits a small uniform elongation of 2.65%, but has a fracture elongation of 19.2%, showing superior post-necking elongation. At 298 K, the alloy displays a single dislocation slipping, β→α″ phase transformation occurred, and 6.35% uniform elongation was obtained, whereas the coupling of dislocation slipping and twinning deformation behaviors dominated at 77 K. The limited uniform elongation is attributed to the absence of martensite phase transformation at 77 K, whereas the decent fracture elongation is ascribed to the resistance offered by twinning against plastic instability.

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The importance of interfacial stress-affected zone in evading the strength-ductility trade-off of heterogeneous multi-layered composites

Cited by 36 publications

References 105 publications

Grain Refinement and Mechanical Enhancement of Titanium Matrix Composites with Nickel-Coated Graphene Nanoflakes: Influence of Particle-Size Mismatch

Grain Refinement and Mechanical Enhancement of Titanium Matrix Composites with Nickel-Coated Graphene Nanoflakes: Influence of Particle-Size Mismatch

Influence of Interface Type on Dynamic Deformation Behavior of 3D-Printed Heterogeneous Titanium Alloy Materials

Revealing the Superior Post-Necking Elongation in the Fine-Grained Ti-6Al-4V ELI at Cryogenic Temperature

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