Enhanced hardness and wear resistance of Al-based hybrid MMCs by using of composite metal boride reinforcement particles

Sina Khoshsima; Sıddıka Mertdinç; Amir Motallebzadeh; Zerrin Altıntaş; Duygu Ağaoğulları; Özge Balcı-Çağıran

doi:10.1016/j.matchemphys.2022.126377

Enhanced hardness and wear resistance of Al-based hybrid MMCs by using of composite metal boride reinforcement particles

Sina Khoshsima, Sıddıka Mertdinç^*, Amir Motallebzadeh, Zerrin Altıntaş, Duygu Ağaoğulları, Özge Balcı-Çağıran^*

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Koc University

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

Composite metal boride particles were synthesized and then used as the reinforcement material for fabricating Al-based hybrid metal matrix composites (MMCs). Mechanical alloying and pressureless sintering methods were used to produce the Al - 2 wt % Co–Ni–B/Co–Ti–B hybrid composites. Mechanically alloyed powders and sintered composites were characterized in terms of physical, microstructural and mechanical properties. The low crystallite size of Al particles and high density of the composites provided improved microstructures without needle-shaped secondary phases, and increased nanohardness values of Al matrix, and hence resulted in enhanced mechanical properties. The lowest indentation depths (both for matrix and reinforcement phases), the highest hardness (∼2 GPa) and the lowest wear volume loss (∼0.13 mm³) were obtained from the Al-based MMCs reinforced with Co–Ni–B particles containing CoB and Ni₂Co_0.67B_0.33 phases. Studies revealed that the synergetic effect of the binary and ternary boride phases in the composite reinforcements had a positive role on the hardness and wear resistance of hybrid composites.

Original language	English
Article number	126377
Journal	Materials Chemistry and Physics
Volume	288
DOIs	https://doi.org/10.1016/j.matchemphys.2022.126377
Publication status	Published - 1 Sept 2022

Bibliographical note

Publisher Copyright:
© 2022 Elsevier B.V.

Funding

This study was supported by “The Scientific and Technological Research Council of Turkey ( TÜBİTAK )” with the project name “Novel Low Temperature Synthesis of Cobalt–Metal–Boron (Metal=Ni, Fe, Ti) Based Ternary Metal Borides from Metal Chlorides: Characterization and Application Oriented Investigations on Catalyzer/Magnet/Hybrid Composite Fabrication” and number of 117F178. The authors appreciated to Prof. Dr. Hüseyin Çimenoğlu and Mr. Mertcan Kaba for their helps on wear volume loss tests.

Funders	Funder number
Cobalt–Metal–Boron	117F178
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu

Keywords

Mechanical properties
Metal-matrix composites (MMCs)
Particle-reinforcement
Sintering

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10.1016/j.matchemphys.2022.126377

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abstract = "Composite metal boride particles were synthesized and then used as the reinforcement material for fabricating Al-based hybrid metal matrix composites (MMCs). Mechanical alloying and pressureless sintering methods were used to produce the Al - 2 wt % Co–Ni–B/Co–Ti–B hybrid composites. Mechanically alloyed powders and sintered composites were characterized in terms of physical, microstructural and mechanical properties. The low crystallite size of Al particles and high density of the composites provided improved microstructures without needle-shaped secondary phases, and increased nanohardness values of Al matrix, and hence resulted in enhanced mechanical properties. The lowest indentation depths (both for matrix and reinforcement phases), the highest hardness (∼2 GPa) and the lowest wear volume loss (∼0.13 mm3) were obtained from the Al-based MMCs reinforced with Co–Ni–B particles containing CoB and Ni2Co0.67B0.33 phases. Studies revealed that the synergetic effect of the binary and ternary boride phases in the composite reinforcements had a positive role on the hardness and wear resistance of hybrid composites.",

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AU - Khoshsima, Sina

AU - Mertdinç, Sıddıka

AU - Motallebzadeh, Amir

AU - Altıntaş, Zerrin

AU - Ağaoğulları, Duygu

AU - Balcı-Çağıran, Özge

PY - 2022/9/1

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N2 - Composite metal boride particles were synthesized and then used as the reinforcement material for fabricating Al-based hybrid metal matrix composites (MMCs). Mechanical alloying and pressureless sintering methods were used to produce the Al - 2 wt % Co–Ni–B/Co–Ti–B hybrid composites. Mechanically alloyed powders and sintered composites were characterized in terms of physical, microstructural and mechanical properties. The low crystallite size of Al particles and high density of the composites provided improved microstructures without needle-shaped secondary phases, and increased nanohardness values of Al matrix, and hence resulted in enhanced mechanical properties. The lowest indentation depths (both for matrix and reinforcement phases), the highest hardness (∼2 GPa) and the lowest wear volume loss (∼0.13 mm3) were obtained from the Al-based MMCs reinforced with Co–Ni–B particles containing CoB and Ni2Co0.67B0.33 phases. Studies revealed that the synergetic effect of the binary and ternary boride phases in the composite reinforcements had a positive role on the hardness and wear resistance of hybrid composites.

AB - Composite metal boride particles were synthesized and then used as the reinforcement material for fabricating Al-based hybrid metal matrix composites (MMCs). Mechanical alloying and pressureless sintering methods were used to produce the Al - 2 wt % Co–Ni–B/Co–Ti–B hybrid composites. Mechanically alloyed powders and sintered composites were characterized in terms of physical, microstructural and mechanical properties. The low crystallite size of Al particles and high density of the composites provided improved microstructures without needle-shaped secondary phases, and increased nanohardness values of Al matrix, and hence resulted in enhanced mechanical properties. The lowest indentation depths (both for matrix and reinforcement phases), the highest hardness (∼2 GPa) and the lowest wear volume loss (∼0.13 mm3) were obtained from the Al-based MMCs reinforced with Co–Ni–B particles containing CoB and Ni2Co0.67B0.33 phases. Studies revealed that the synergetic effect of the binary and ternary boride phases in the composite reinforcements had a positive role on the hardness and wear resistance of hybrid composites.

KW - Mechanical properties

KW - Metal-matrix composites (MMCs)

KW - Particle-reinforcement

KW - Sintering

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Enhanced hardness and wear resistance of Al-based hybrid MMCs by using of composite metal boride reinforcement particles

Abstract

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Keywords

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