Effects of alloy elements (Mg, Zn) on the microstructure and mechanical properties of (TiC+TiB2)/Al composites

Li, Shuangshuang; Zhang, He; Chang, Fang; Fei, Yu-Nan; Kou, Shuqing; Shao, Yongbo; Xuan, Qianqian; Li, Xin; Qiu, Feng

doi:10.1016/j.ceramint.2022.04.201

Cited by 11 publications

(2 citation statements)

References 54 publications

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“…As we all know, both Nb and Mo have larger atomic radii compared to Ni. This results in significant lattice distortion within the interdendritic region of the AW metal, leading to increased strength and hardness, while simultaneously reducing its plasticity and toughness [39]. The reverse is true in the dendrite core.…”

Section: Fatigue Performance and Fatigue Behaviormentioning

confidence: 99%

The Effect of Dendritic Structure and Secondary Phases on the Fatigue Behavior of ERNiCrMo-3 Weld Metal

Zhang,

Ji,

et al. 2023

Preprint

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The effect of dendritic structure and secondary phases on the fatigue crack propagation mechanism of ERNiCrMo-3 weld metal was investigated in the present study. Element segregation in the weld metal caused severe lattice distortion in the interdendritic region, which led to the instability of crack propagation rates, resulting in considerable differences in mechanical properties between the dendrite core and interdendritic region. The limited plastic deformation capability of the interdendritic region caused the contraction of the local plastic deformation zone at the crack tip, which increased stress concentration and accelerated crack propagation. Meanwhile, element segregation promoted the precipitation of a large number of Laves pahse in the interdendritic region. The interaction between dislocations and Laves phase was enhanced as the stress increased, which generated micro-voids and provided fast channels for fatigue crack propagation. Post-weld heat treatment weakened the non-uniformity of the microstructure and the fatigue crack showed a stable propagation trend. Moreover, the dissolution of Laves phase and the precipitation of γ” enhanced the fatigue property of the weld metal.

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Section: Fatigue Performance and Fatigue Behaviormentioning

confidence: 99%

The Effect of Dendritic Structure and Secondary Phases on the Fatigue Behavior of ERNiCrMo-3 Weld Metal

Zhang,

Ji,

et al. 2023

Preprint

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“…It is believed that graphene materials primarily impact the physicochemical properties of MMCs through interfacial behavior, the types and fraction of reinforcements, and layered structure [8]. This is why graphene is superior to other reinforcements, such as TiC [9], TiB 2 [10], Al 2 O 3 [11], etc. MMCs are developing towards ultra-lightweight, wear resistance, and chemical resistance [12].…”

Section: Introductionmentioning

confidence: 99%

Mechanical Property and Corrosion Behavior of Powder-Metallurgy-Processed 3D Graphene-Networks-Reinforced Al Matrix Composites

et al. 2023

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Three-dimensional graphene networks (3DGN) have the potential to be used as a reinforcement for aluminum matrix composites due to their unique wrinkled structure and cost-effectiveness. In this work, the mechanical properties and corrosion resistance of 3DGN in Al matrix were systematically investigated. 3DGN/Al composites with weight ratios of 0, 0.075, 0.150, 0.225, and 0.300 3DGN were prepared by powder metallurgy following by ball mill and spark plasma sintering. Results revealed that the densification of 3DGN/Al composites slightly decreases with the increase of 3DGN content. Increased hardness without loss of ductility was recorded compared to the pure aluminum sample prepared under the same experimental conditions. 3DGN/Al composites exhibit higher corrosion currents density than that of pure aluminum, which shows that the addition of 3DGN reinforcement aggravates the corrosion of aluminum. This study can be used as a reference for future research on the effect of graphene on the various properties of graphene-reinforced aluminum matrix composites.

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Enhancing the strength-ductility synergy of Fe-based composites by changing interface bonding between matrix and TiCx with various stoichiometric ratios

Zhong

Wang

Han

et al. 2022

Ceramics International

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Effects of alloy elements (Mg, Zn) on the microstructure and mechanical properties of (TiC+TiB2)/Al composites

Cited by 11 publications

References 54 publications

The Effect of Dendritic Structure and Secondary Phases on the Fatigue Behavior of ERNiCrMo-3 Weld Metal

The Effect of Dendritic Structure and Secondary Phases on the Fatigue Behavior of ERNiCrMo-3 Weld Metal

Mechanical Property and Corrosion Behavior of Powder-Metallurgy-Processed 3D Graphene-Networks-Reinforced Al Matrix Composites

Enhancing the strength-ductility synergy of Fe-based composites by changing interface bonding between matrix and TiCx with various stoichiometric ratios

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