Abrasive particle wear behaviors of several die steels with non-smooth surfaces

Chen, L.; Zhou, Hong; Zhao, Yun; Liu, Ren; Li, X.Z.

doi:10.1016/j.jmatprotec.2007.02.043

Cited by 21 publications

(8 citation statements)

References 11 publications

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“…The fixed-time gearing drive moves the specimens up and down between the furnace and water pool. The temperature at the heating period of 60 s is 600 5 ±°C, and that of the cooling period of 5 s is 25 5 ±°C. The specimens are unloaded for observation after each 100 thermal cycles at the first step (from 100 to 400 thermal cycles), and then after each 200 thermal cycles at the last step (from 800 to 1600 thermal cycles).…”

Section: Thermal Fatigue Testmentioning

confidence: 99%

“…These studies proved that the properties of bionic units are critical for improving the bionic material properties. In wear resistance tests, hardness of the bionic units is much higher than the substrate, while the wear ratio between units and frictional pairs is much lower than that of the substrate, which implies that the bionic units are equivalent to particle-reinforcement of a substrate material [5] and, thus, improve its wear resistance [5]. Under thermal fatigue conditions, the bionic units can prohibit initiation [6] and propagation [7] of thermal cracks in a substrate, enhancing the thermal fatigue resistance of materials.…”

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confidence: 99%

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Thermal Fatigue Resistance of Bionic Compacted Graphite Cast Iron Treated with the Twice Laser Process in Water

Liu¹,

Zhou

Yang

et al. 2015

Strength Mater

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For enhancing the thermal fatigue resistance of bionic compacted graphite cast iron (CGI) lasertreated in water, the bionic units are treated twice with the laser to form an uneven bionic surface imitating the alternately soft and hard structure of a plant leaf, which can resist the tearing wind. The results show that this method, without changing the phase composition of the bionic unit, makes the austenite-to-martensite transformation more complete and the content of residual austenite is reduced, in addition, the microstructure coarsens and microhardness slightly turns lower. The twice laser process in water can effectively enhance the thermal fatigue resistance of bionic CGI by reducing the number of cracks in bionic units since the number of cross cracks on the bionic unit surface is the key factor, which affects their resistance to thermal crack propagation.

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Section: Thermal Fatigue Testmentioning

confidence: 99%

mentioning

confidence: 99%

Thermal Fatigue Resistance of Bionic Compacted Graphite Cast Iron Treated with the Twice Laser Process in Water

Liu¹,

Zhou

Yang

et al. 2015

Strength Mater

Self Cite

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“…Zhang et al [24] learned from the pangolin scale and established a DEM model of the arranged scales; then, the abrasive wear behaviors were analyzed. Chen et al [25] studied the surface morphology of soil animals, designed a stripe-like non-smooth surface, and carried out friction and wear tests. The results showed that the wear resistance of several non-smooth surfaces was better than that of smooth surfaces.…”

Section: Introductionmentioning

confidence: 99%

EDEM Investigation and Experimental Evaluation of Abrasive Wear Resistance Performance of Bionic Micro-Thorn and Convex Hull Geometrically Coupled Structured Surface

et al. 2021

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Procambarus clarkii was found to have excellent anti-wear performance against abrasive materials. To improve the wear resistance performance of the soil-engaging component of agricultural machinery, in this study, the micro-thorn and convex hull coupled geometrical structured surfaces inspired from the cephalothorax exoskeleton of the Procambarus clarkii was selected as the bionic prototype. By adopting bionic engineering techniques, three types of novel geometrical structured surfaces were proposed, which were bionic single, double and triple micro-thorn coupled convex hull surfaces (Bionic Type 2, 3 and 4, respectively). The anti-abrasive wear properties of these proposed geometrical surfaces were compared with a conventional bionic convex hull structured surface (Bionic Type 1) and a surface without any structures (smooth). Abrasive wear tests were conducted by using a rotational abrasive wear testing system. The accumulative test time was 80 h and the total wear distance was 6.09 × 105 m. By adopting the EDEM software (discrete element modeling), the Archard Wear model was selected to simulate the wear behavior of five different surfaces. In addition, the wear mechanisms of different surfaces were investigated. The results showed that the smooth surface suffered the most severe abrasive were, the abrasion loss reached 194.1 mg. The anti-abrasive properties of bionic geometric structured non-smooth surfaces were greatly improved; the reduction in terms of abrasion losses ranged between 20.4% and 94.1%, as compared with the smooth surface. The wear resistance property of micro-thorn and convex hull coupled structured surfaces were greatly improved as compared with convex hull and smooth surface. Bionic Type 3 was found to have the best anti-abrasive wear property: the abrasion loss was 11.5 mg. The wear morphology was observed by a scanning electron microscope. Smooth surface was characterized with wide, large size of grinding debris, while the bionic non-smooth surface featured narrow and small size abrasive dust. The results obtained from EDEM simulation agreed well with those of the aforementioned real scenario tests. It was revealed that the wear areas of the micro-thorn and convex hull coupled structured surface were mainly concentrated on the edge of convex hull and micro-thorn that faced the coming direction of particle flow. The geometric structure of the convex hull had beneficial effects on changing the movement behavior of particles, which means the stream of particle flow could be altered from a sliding to rolling state. Consequently, the ploughing and cutting phenomena of particles that act on the surfaces were greatly mitigated. Moreover, after being coupled with micro-thorns, the anti-abrasive wear preparty of the bionic convex hull geometrical structured surface was further improved. The rebound angle of particle flow that contacted the bionic micro-thorn coupled convex hull structured surface was greater than that of the conventional convex hull surface. Therefore, the dispersion effect of particle flow was further enhanced, since the movement behavior of the subsequent impact particle flow was altered. As a result, the wear of the bionic non-smooth surface was further reduced. This biconically inspired novel micro-thorn and convex hull coupled structured surface could provide theatrical and technical references to enhance the wear resistance performance of the soil-engaging component of agricultural machinery and mitigate the problem of abrasive wear failure.

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“…Frohnapfel et al [11] studied the surface of turtle skin and simplified the groove structure on the surface of turtle skin; they found that the blade surface had the best drag reduction effect, and the turbulence dissipation rate between the grooves had a significant impact on the final drag reduction effect. Chen et al [12] prepared strip textures with different spacing on the surfaces of 3Cr2W8V, H13, and HD(4Cr3Mo2NiVNb) materials, and compared them with smooth surfaces to investigate changes in the wear amount. The study found that, compared with smooth surfaces, the wear amount of strip textures was smaller, and the wear resistance of texture surfaces decreased with the increase of stripe spacing.…”

Section: Introductionmentioning

confidence: 99%

Bionic Structure on Complex Surface with Belt Grinding for Electron Beam Welding Seam of Titanium Alloy

Xiao¹,

Zhang²,

He³

et al. 2020

Applied Sciences

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Electron beam welding (EBW) is widely used to weld titanium alloy parts such as aero-engine casing and blades. The surface quality after EBW has a significant influence on the aero-engine performance of those parts. We propose a surface treatment method with grinding on a titanium alloy electron beam weld. We analyze the influence of grinding parameters on the characteristics of the grinding surface. The experiment shows the applicability of ground surface by belt grinding on EBW and its impact on aero-engine performance. After belt grinding, both the welded surface and the surface connected with the substrate are smooth. The extra height of the seam was less than 0.2 mm, and the surface roughness (Ra) of the weld after grinding can be less than 0.98 μm. The microstructure of the weld after grinding was analyzed. Two types of bionic shapes were obtained, a sawtooth shape with a width of 40 μm and a height of 10 μm and a wavy shape with a width of 20 μm and a height of 3 μm. From the analysis above, the bionic surface can be obtained by grinding on the weld with an abrasive belt.

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Abrasive particle wear behaviors of several die steels with non-smooth surfaces

Cited by 21 publications

References 11 publications

Thermal Fatigue Resistance of Bionic Compacted Graphite Cast Iron Treated with the Twice Laser Process in Water

Thermal Fatigue Resistance of Bionic Compacted Graphite Cast Iron Treated with the Twice Laser Process in Water

EDEM Investigation and Experimental Evaluation of Abrasive Wear Resistance Performance of Bionic Micro-Thorn and Convex Hull Geometrically Coupled Structured Surface

Bionic Structure on Complex Surface with Belt Grinding for Electron Beam Welding Seam of Titanium Alloy

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