A novel iron matrix composite fabricated by two-step in situ reaction: Microstructure, formation mechanism and mechanical properties

Bai, Haiqiang; Zhong, Lisheng; Lee, Kang; Wei, Junzhe; Lv, Zhenlin; Xu, Yunhua

doi:10.1016/j.jallcom.2020.157442

Cited by 16 publications

(1 citation statement)

References 29 publications

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“…Two-step in situ reaction was used by Bai et al to create iron matrix composites that outperform cast iron in terms of strength and toughness. 12 A core-shell composite made of Nb-Nbc/Fe has 1623 MPa yield strength and 1970 MPa ultimate compressive strength, whereas cast iron has 420 MPa yield strength and 830 MPa ultimate compressive strength. Powder metallurgy and swaging were used to create an iron-titanium metal matrix composite by Lin et al 13 The swaging iron-titanium composite's tensile strength and strain increased by 1360 MPa and 9.3 percent, respectively, and a homogeneous microstructure was discovered.…”

Section: Introductionmentioning

confidence: 99%

Synergetic Effect of CeO₂ Doping on Structural and Tribological Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites

Gupta

Ahamad

Kumar

et al. 2022

ECS J. Solid State Sci. Technol.

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Cerium oxide (CeO2) doped iron (Fe) - alumina (Al2O3) metal matrix nanocomposites were studied. Doped with 0.5 and 1.0 percent CeO2, the nanocomposites in this system were made in the lab. Powder milling, die pressing, and sintering at 1100°C for one hour in an atmosphere-controlled furnace were used to develop the specimens. Microstructural inspection of a worn-out surface on the prepared specimens was performed in addition to the phase determination and microstructural assessment that were performed on the fabricated specimens. Fe, Al2O3, CeO2, and FeAl2O4 phases were all seen in the X-ray diffraction data. There were nano dispersion of FeAl2O4 and CeO2 particles in the dense phase microstructure of the produced samples. Increasing the amount of cerium oxide in the material resulted in an increase in both density and hardness. The specimen's wear rate was shown to decrease with an increase in cerium oxide content %. The present developed material will be useful for heavy duty applications like railway wagon wheels.

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Section: Introductionmentioning

confidence: 99%

Synergetic Effect of CeO₂ Doping on Structural and Tribological Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites

Gupta

Ahamad

Kumar

et al. 2022

ECS J. Solid State Sci. Technol.

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Microstructure and Mechanical Properties Evolution of W@WC/Fe Core–Shell Bar‐Reinforced Iron Matrix Composites: Effect of In‐situ Solid Diffusion Time

Bai,

Wang,

Kang

et al. 2024

Adv Eng Mater

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To improve the strength and toughness of conventional particle‐reinforced iron matrix composites, W@WC/Fe core–shell bar‐reinforced iron matrix composites (CBIMCs) are synthesized by casting and in‐situ solid‐phase diffusion method. These composites, which have an architecture similar to concrete, consist of a core of residual W bar and a shell of gradient‐structured WC‐Fe layer. The effect of in‐situ solid diffusion time on the evolution of microstructure and mechanical properties of the composites is investigated. It is observed that for in‐situ solid diffusion times ranging from 3 to 24 h, the reinforcement in the composites remained as W@WC/Fe core–shell bars. As the solid diffusion time increased, the diameter of the W core gradually decreased, and the thickness of the WC‐Fe shell layer increased. At a solid diffusion time of 30 h, the reinforcement transitioned to the WC‐Fe composite bar. Additionally, with longer solid diffusion times, the WC particles transformed from a triangular prism shape to a truncated octahedron. The composite prepared at 18 h exhibits the highest ultimate compression strength and strain, reaching values of 1100 ± 18 MPa and 35.5 ± 1.3%, respectively. This excellent ultimate compression strength is mainly due to the WC particles, which enhanced load transfer strengthening and dislocation strengthening. Moreover, the metal W core and iron matrix effectively hinder microcrack propagation, thus contributing to the enhanced toughness of the composite.

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Research and prospect of particle reinforced iron matrix composites

Dong,

Yang,

Wang

et al. 2023

Int J Adv Manuf Technol

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A novel iron matrix composite fabricated by two-step in situ reaction: Microstructure, formation mechanism and mechanical properties

Cited by 16 publications

References 29 publications

Synergetic Effect of CeO₂ Doping on Structural and Tribological Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites

Synergetic Effect of CeO₂ Doping on Structural and Tribological Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites

Microstructure and Mechanical Properties Evolution of W@WC/Fe Core–Shell Bar‐Reinforced Iron Matrix Composites: Effect of In‐situ Solid Diffusion Time

Research and prospect of particle reinforced iron matrix composites

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A novel iron matrix composite fabricated by two-step in situ reaction: Microstructure, formation mechanism and mechanical properties

Cited by 16 publications

References 29 publications

Synergetic Effect of CeO2 Doping on Structural and Tribological Behavior of Fe-Al2O3 Metal Matrix Nanocomposites

Synergetic Effect of CeO2 Doping on Structural and Tribological Behavior of Fe-Al2O3 Metal Matrix Nanocomposites

Microstructure and Mechanical Properties Evolution of W@WC/Fe Core–Shell Bar‐Reinforced Iron Matrix Composites: Effect of In‐situ Solid Diffusion Time

Research and prospect of particle reinforced iron matrix composites

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Product

Resources

About

Synergetic Effect of CeO₂ Doping on Structural and Tribological Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites

Synergetic Effect of CeO₂ Doping on Structural and Tribological Behavior of Fe-Al₂O₃ Metal Matrix Nanocomposites