The effect of the addition of blast furnace slag on the wear behavior of heavy transport polymer-based brake pads

Sağıroğlu, Selami; Akdoğan, Kamil

doi:10.1016/j.triboint.2023.108845

“…The densest sample corresponds to the highest hardness value. Similar results for different materials can be found in studies in the literature [23][24][25]. After soaking the samples in water and oil for 48 hours, total hardness and weight changes were measured (Fig.…”

Section: Mechanical and Physical Propertiessupporting

confidence: 83%

Development of Polymer-Based Hemp and Colemanite Composite as a Friction Material

KARAKAS,

Oktem,

Uygur

2024

Preprint

0

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Natural and organic-based composite materials are widely used in many industrial applications due to their low cost, easy recyclability, economic feasibility, and ready availability. In this study, a polymer-based composite friction material consisting of Hemp-Colemanite composition (HCFCo) has been developed for the automotive sector to exhibit lower cost, environmentally friendly characteristics, and suitable friction-wear behaviors. For this purpose, three different ratios (%4, %8 and %12) of HCFCo composites were produced using a coating technique called impregnation process with a specially designed device. During the production stage, homogeneity of the composites was ensured, and then the final shape was given by the hot pressing method. Properties such as hardness, density, water and oil absorption, friction coefficient, and specific wear of HCFCo samples were examined. In addition, the microstructures of HCFCo composites were investigated to determine the bonding form between hemp fiber and colemanite. The results obtained revealed that the friction coefficient values decreased with an increase in temperature, while no significant change was observed in hardness and density values. Throughout the entire testing process, the friction coefficients varied between 0.14 and 0.29 on average. It was concluded that the developed fiber-reinforced composite can be reliably used in industrial applications and can contribute significantly to innovations in the literature.

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“…The densest sample corresponds to the highest hardness value. Similar results for different materials can be found in studies in the literature [23][24][25]. After soaking the samples in water and oil for 48 h, total hardness and weight changes were measured (figure 5).…”

Section: Friction Testing Proceduressupporting

confidence: 82%

Tribological and mechanical exploration of polymer-based hemp and colemanite composite as a friction material

Karakaş,

Öktem,

Uygur

2024

Eng. Res. Express

0

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Natural and organic-based composite materials are widely used in many industrial applications due to their low cost, easy recyclability, economic feasibility, and ready availability. In this study, a polymer-based composite friction material consisting of Hemp-Colemanite composition (HCFCo) has been developed for the automotive sector to exhibit lower cost, environmentally friendly characteristics, and suitable friction-wear behaviors. For this purpose, three different ratios (%4, %8 and %12) of HCFCo composites were produced using a coating technique called impregnation process with a specially designed device. During the production stage, homogeneity of the composites was ensured, and then the final shape was given by the hot pressing method. Properties such as hardness, density, water and oil absorption, friction coefficient, and specific wear of HCFCo samples were examined. In addition, the microstructures of HCFCo composites were investigated to determine the bonding form between hemp fiber and colemanite. The results obtained revealed that the friction coefficient values decreased with an increase in temperature, while no significant change was observed in hardness and density values. Throughout the entire testing process, the friction coefficients varied between 0.14 and 0.29 on average. It was concluded that the developed fiber-reinforced composite can be reliably used in industrial applications and can contribute significantly to innovations in the literature.

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“…Severe wear of brake pads significantly diminishes their lifespan and can even lead to brake system failure 39‐42 . Our study has shown that the wear rates for brake pads in steel brake cases and coated disk cases are nearly identical under most conditions.…”

Section: Discussionmentioning

confidence: 66%

Simultaneous enhancement of friction and wear resistance for high‐speed braking system with Cr₃C₂‐NiCr‐coated brake disk

Wen,

Zhang,

Zhang

et al. 2023

Int J Applied Ceramic Tech

0

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The current steel brake disk and Cu‐based powder metallurgy brake pad used in high‐speed trains suffer fading coefficient of friction (COF) and excessive wear, resulting in a shorten lifetime and numerous exhausted brake disks. High‐velocity oxygen fuel (HVOF) spray‐prepared coatings have proven their ability to improve COF and decrease wear rate. In this article, Cr3C2‐NiCr coating was sprayed on a steel brake disk, and a series of emergency braking tests under dry and wet conditions were performed on a subscale brake dynamometer, to comprehensively evaluate the braking performance of coated brake disk. The results showed that the coated brake disk exhibits a higher COF at 380 km/h, which effectively inhibits the COF fade compared to the steel brake disk case. The coated brake system also achieves a lower wear rate of the brake pad at 380 km/h, showing the desired high COF and low wear rate properties of the braking system. Additionally, the coated brake disk maintained surface integrity even after severe braking tests, highlighting its potential in the braking system. Based on the characterizations of wear debris and brake pads, a harder and thinner oxide friction film plays a crucial role in achieving the excellent braking performance in coated brake disk cases.

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The effect of the addition of blast furnace slag on the wear behavior of heavy transport polymer-based brake pads

Cited by 9 publications

References 33 publications

Development of Polymer-Based Hemp and Colemanite Composite as a Friction Material

Development of Polymer-Based Hemp and Colemanite Composite as a Friction Material

Tribological and mechanical exploration of polymer-based hemp and colemanite composite as a friction material

Simultaneous enhancement of friction and wear resistance for high‐speed braking system with Cr₃C₂‐NiCr‐coated brake disk

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The effect of the addition of blast furnace slag on the wear behavior of heavy transport polymer-based brake pads

Cited by 9 publications

References 33 publications

Development of Polymer-Based Hemp and Colemanite Composite as a Friction Material

Development of Polymer-Based Hemp and Colemanite Composite as a Friction Material

Tribological and mechanical exploration of polymer-based hemp and colemanite composite as a friction material

Simultaneous enhancement of friction and wear resistance for high‐speed braking system with Cr3C2‐NiCr‐coated brake disk

Contact Info

Product

Resources

About

Simultaneous enhancement of friction and wear resistance for high‐speed braking system with Cr₃C₂‐NiCr‐coated brake disk