The effects of double ceramic particles (B4C-SiC) on the performance, microstructure, and friction-wear mechanisms of copper-based PM

Wu, Jiaqi; Li, Zhuan; Luo, Yong; Li, Ye; Gao, Zonglong; Zhao, Yibo; Wu, Cuiwei; Liao, Yanxia; Jun, Min

doi:10.1016/j.triboint.2022.107865

Cited by 16 publications

(1 citation statement)

References 17 publications

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“…To resolve this concern, a hybrid composite that combines solid lubricants like graphite with ceramic reinforcement can enhance the mechanical and wear properties [26]. Due to its high strength, low density, high hardness, chemical inertness, and favorable wear properties, boron carbide (B 4 C) is one of the most attractive ceramic materials [27,28]. B 4 C has frequently been used as one of the reinforcements in fabricating several metal matrix composites [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Wear and friction behaviour of Cu-Gr-B₄C composites and correlating to the topographical characteristics

Kumar,

Ankit,

Majhi

et al. 2024

Surf. Topogr.: Metrol. Prop.

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The mechanical and tribological characteristics are important in applications such as bearing linings, bushings, and electrical contacts. In the current experiment, copper-chromium matrix composites reinforced with graphite (Gr.)-boron carbide (B4C) [at 1.5, 3, and 4.5 wt.%] were made using powder metallurgy (P/M) process. As reinforcements, equal amounts of Gr and B4C were utilized. The microstructural characteristics of the sintered composites have been investigated using analytical techniques such as EDS mapping analysis, x-ray diffraction, and scanning electron microscopy (SEM). The composites with a copper matrix displayed a homogeneous distribution of the reinforcement phase within the material. The pin-on-disc tribometer was used to conduct dry sliding wear tests with loads ranging from 10 to 40 N, sliding speeds of 1-3 m/s, and fixed sliding distances of 2km. The hardness is 97.3HV with 3 wt.% of each graphite and B4C reinforcement, which is 70.1% harder than pure copper (57.2HV). It has been discovered that the wear rate and COF of composites decrease as the quantity of reinforcing rises—the composite with 4.5 wt.% graphite and 4.5 wt.% B4C exhibits the least amount of wear. The wear rate showed a rising trend with the applied load and sliding velocity across every material. The study of the deteriorated surface also reveals that delamination is the primary wear mechanism for pure Cu specimens. B4C and graphite-reinforced composites have been subjected to abrasives, oxidative and delamination wear modes.

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Section: Introductionmentioning

confidence: 99%

Wear and friction behaviour of Cu-Gr-B₄C composites and correlating to the topographical characteristics

Kumar,

Ankit,

Majhi

et al. 2024

Surf. Topogr.: Metrol. Prop.

View full text Add to dashboard Cite

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Sepiolite: A new component suitable for 380 km/h high-speed rail brake pads

Wu,

Li,

Wen

et al. 2024

Advanced Powder Materials

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Influence of synergistic strengthening effect of B4C and TiC on tribological behavior of copper-based powder metallurgy

Luo

et al. 2023

Ceramics International

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The effects of double ceramic particles (B4C-SiC) on the performance, microstructure, and friction-wear mechanisms of copper-based PM

Cited by 16 publications

References 17 publications

Wear and friction behaviour of Cu-Gr-B₄C composites and correlating to the topographical characteristics

Wear and friction behaviour of Cu-Gr-B₄C composites and correlating to the topographical characteristics

Sepiolite: A new component suitable for 380 km/h high-speed rail brake pads

Influence of synergistic strengthening effect of B4C and TiC on tribological behavior of copper-based powder metallurgy

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The effects of double ceramic particles (B4C-SiC) on the performance, microstructure, and friction-wear mechanisms of copper-based PM

Cited by 16 publications

References 17 publications

Wear and friction behaviour of Cu-Gr-B4C composites and correlating to the topographical characteristics

Wear and friction behaviour of Cu-Gr-B4C composites and correlating to the topographical characteristics

Sepiolite: A new component suitable for 380 ​km/h high-speed rail brake pads

Influence of synergistic strengthening effect of B4C and TiC on tribological behavior of copper-based powder metallurgy

Contact Info

Product

Resources

About

Wear and friction behaviour of Cu-Gr-B₄C composites and correlating to the topographical characteristics

Wear and friction behaviour of Cu-Gr-B₄C composites and correlating to the topographical characteristics

Sepiolite: A new component suitable for 380 km/h high-speed rail brake pads