Enhancing tribological performance of cemented carbide (WC-12Co) by pulsed magnetic field treatment and magnetofluid

Yang, Yunfeng; Yang, Yi; Liao, Chengzhi; Ye, Gang; Yuan, Qingchen; Li, QiuQin; Wu, Mingxia

doi:10.1016/j.triboint.2021.107086

Cited by 17 publications

(3 citation statements)

References 32 publications

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“…It was also found that the milling force, including F x , F y , and the join forces (Figs. 19(f)-19(h)) were decreased using the PMTed tools, and the surface roughness of the workpiece also decreased in contrast to the control group [114][115][116][117][118]. The reduction of adhesive wear and the attraction of acceptable wear debris by the remanence contributed to the transition from two-body to three-body friction [115].…”

Section: Applied Research On Cutting Performance Improvements Of Mach...mentioning

confidence: 91%

Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Cai,

Qian,

Zhang

et al. 2024

Friction

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Pulsed magnetic treatment (PMT) has been adopted as an effective strengthening method for engineering materials and components in recent years, and the development of its application depends on the comprehensive understanding of the nature of PMT. The deep mechanism was thought initially to be the magnetostrictive effect, while further investigation found that the magnetic field could lead to the change of the defect states in the crystal, which is called the magnetoplastic effect. Due to the complexity of the engineering materials, manifestations of the magnetoplastic effect become more diverse, and they were reviewed in the form of microstructure homogenization and interfacial stabilization. Further, the mechanism of the magnetoplastic effect was discussed, focusing on the changes in the spin states under the external magnetic field. Microstructure modifications could also alter material performances, especially the residual stress, plasticity, and fatigue properties. Therefore, PMT with specific parameters can be utilized to obtain an ideal combination of microstructure, residual stress, and mechanical properties for better service performance of different mechanical parts, and its applications on machining tools and bearings are perfect examples. This work reviews the effect of PMT on the microstructure and properties of different materials and the mechanism, and it also summarizes the fundamental applications of PMT on essential mechanical parts.

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Section: Applied Research On Cutting Performance Improvements Of Mach...mentioning

confidence: 91%

Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Cai,

Qian,

Zhang

et al. 2024

Friction

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“…A 304 SS ball with a diameter of 6.35 mm was used for rubbing against the specimen surface. Considering the test parameters of stainless steel by Yang et al 25 , and combined with the application background of low-speed cutting, a constant pressure of 80 N was applied to the specimen by the 304 SS ball, reciprocating in the x -direction at a frequency of 1 Hz (10 mm/s), the stroke was 5 mm, and the working time was 30 min.…”

Section: Methodsmentioning

confidence: 99%

Tribological properties of high-speed steel surface with texture and vertical fibers

Feng

Wang

et al. 2023

Sci Rep

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Inadequate lubrication of the two touching surfaces during friction can lead to severe wear, especially in metal cutting. Therefore, a surface with synergistic anti-friction effect of texture and solid lubricant was proposed to improve lubrication. A mesh texture with excellent wettability was prepared on the high-speed steel (HSS) surface by laser, and then nylon fibers were vertically implanted into the grooves of the texture using the electrostatic flocking technology. The friction and wear state of different surfaces (smooth, textured, flocking) under dry/oil-lubricated were studied by a linear reciprocating wear tester. The coefficient of friction (COF) under different working conditions was used to analyze the anti-friction properties, and the wear rate was used to evaluate the wear resistance of the surface. The results showed that the tribological properties of flocking surfaces were better than those of the other two surfaces. This is because the addition of nylon fibers eases shear at the edges of the texture. The broken fibers form a solid lubricating film on the specimen surface, which prevents the surface from being scratched by debris. In addition, it is found that COF decreases with increasing load. Finally, the rapid wettability of the oil droplets on the flocking surface shows the great potential of the surface for lubrication and anti-friction.

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“…Tungsten carbide itself has a very high hardness, however, it is quite brittle [7,8]. Therefore, cemented carbide is a material composed of tungsten carbide grains imbedded in a cobalt-based binder [9 -11].…”

Section: Introductionmentioning

confidence: 99%

Computer analysis of the cemented carbides’ microstructure

et al. 2021

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Cemented carbides have been known for about a hundred years and are now widely used in mining, civil and road construction, and mechanical engineering. Their improvement requires the development of novel technologies based on fundamentally new approaches. Here the method for microstructure analysis using computer processing with elements of machine learning and artificial intelligence is proposed. It has been applied to the analysis of micrographs obtained by the scanning electron microscopy of the WC-Co cemented carbides. The geometric parameters of the WC / Co interphase boundaries are extracted using mathematical methods for processing digital pictures. This method is applied to the micrographs of three samples with different WC mean grain sizes. It has been found that the distribution of the contact angles of WC / Co interphase boundaries has a pronounced bimodal structure, and the values of the peak angles are practically the same for the samples of the fine-, medium-, and coarse-grain cemented carbide grades. The distributions of the semiaxes for the isolated areas of the cobalt binder are also obtained. The probability of finding a particular value of long and short semiaxis decreases exponentially with increasing semiaxis length. Contrary to the contact angles, the exponents are different for samples with different WC grains sizes. The obtained results are discussed using the ideas of wetting of grain boundaries and faceting-roughening of interphase boundaries.

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Enhancing tribological performance of cemented carbide (WC-12Co) by pulsed magnetic field treatment and magnetofluid

Cited by 17 publications

References 32 publications

Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Mechanism and application of mechanical property improvements in engineering materials by pulsed magnetic treatment: A review

Tribological properties of high-speed steel surface with texture and vertical fibers

Computer analysis of the cemented carbides’ microstructure

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