Effect of ball rotation speed on wear coefficient and particle behavior in micro-abrasive wear tests

Esteves, P.J.; Macêdo, Marcelo Camargo Severo de; Souza, R.M.; Scandian, Chérlio

doi:10.1016/j.wear.2019.01.102

Cited by 13 publications

(14 citation statements)

References 9 publications

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“…Related research has shown that the hardness is one of the main parameters used to characterize the wear resistance of a material, and in the present study, the wear resistance of Mo-Si-B alloy increased with the increase in the hardness of the material [18,19]. This is consistent with the findings of Archard who found that the wear resistance and hardness of materials are linearly related [20].…”

Section: Resultssupporting

confidence: 91%

Tribological Properties of Mo-Si-B Alloys Doped with La2O3 and Tested at 293–1173 K

Wen-hu

Dong

et al. 2019

Materials

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According to the stoichiometric ratios of Mo-10Si-7B, Mo-12Si-8.5B, Mo-14Si-9.8B, and Mo-25Si-8.5B, some new Mo-Si-B alloys doped with 0.3 wt % lanthanum (III) oxide (La2O3) were prepared via liquid-liquid (L-L) doping, mechanical alloying (MA), and hot-pressing (HP) sintering technology. The phase-composition and microstructure were investigated by X-ray diffraction (XRD) and scanning electron microscope (SEM). The worn surfaces of the plate specimens were studied by confocal laser scanning microscopy (CLSM). Then, the tribological properties of Mo-Si-B alloy doped with sliding plate specimens of 0.3 wt % La2O3 were investigated against the Si3N4 ball specimens. The friction coefficients of Mo-Si-B alloys decreased and the wear rates of the alloys increased with test load. The high-temperature friction and wear behavior of Mo-Si-B alloy are related to the surface-oxidation and contact-deformation of the alloy at a high temperature. The low friction coefficients and the reduced wear rates are thought to be due to the formation of low friction MoO3 films. MoO3 changed the contact state of the friction pairs and behaved as lubricating films.

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Section: Resultssupporting

confidence: 91%

Tribological Properties of Mo-Si-B Alloys Doped with La2O3 and Tested at 293–1173 K

Wen-hu

Dong

et al. 2019

Materials

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“…It was concluded that harder balls induce a greater friction coefficient, while softer ones tend to entangle the abrasive particles on their surface, showing rolling wear behavior in an earlier stage and evolving into grooving during the test. The effect of the rotation speed of the ball in these tests has also been investigated [ 18 ], concluding that a higher ball speed induces a decrease in the wear coefficient, entrapping more abrasive particles on the ball’s surface. The influence of the abrasive concentration and the normal load has also been investigated by Cozza [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Study on the Influence of the Ball Material on Abrasive Particles’ Dynamics in Ball-Cratering Thin Coatings Wear Tests

et al. 2021

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Micro-abrasion remains a test configuration hugely used, mainly for thin coatings. Several studies have been carried out investigating the parameters around this configuration. Recently, a new study was launched studying the behavior of different ball materials in abrasive particles’ dynamics in the contact area. This study intends to extend that study, investigating new ball materials never used so far in this test configuration. Thus, commercial balls of American Iron and Steel Institute (AISI) 52100 steel, Stainless Steel (SS) (AISI) 304 steel and Polytetrafluoroethylene (PTFE) were used under different test conditions and abrasive particles, using always the same coating for reference. Craters generated on the coated samples’ surface and tracks on the balls’ surface were carefully observed by Scanning Electron Microscopy (SEM) and 3D microscopy in order to understand the abrasive particles’ dynamics. As a softer material, more abrasive particles were entrapped on the PTFE ball’s surface, generating grooving wear on the samples. SS AISI 304 balls, being softer than the abrasive particles (diamond), also allowed particle entrapment, originating from grooving wear. AISI 52100 steel balls presented particle dynamics that are already known. Thus, this study extends the knowledge already existing, allowing to better select the ball material to be used in ball-cratering tests.

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“…When the experiment temperature was 50 °C, the worn surface of the tested steel adhesive wear and fatigue wear also existed. However, with the increase of the experimental temperature, the amount of abrasive particles caused by adhesive wear and fatigue wear increased, which aggravates the abrasive wear of the experimental steel and eventually leads to serious wear of the tested steel [13,14,15,16]. When the experimental temperature rose to 100 °C and 150 °C, the wear mechanism of the tested steel was mainly manifested as adhesive wear, fatigue wear, abrasive wear, and oxidation wear of different degrees.…”

Section: Discussionmentioning

confidence: 99%

Effects of Temperature on the Tribological Properties of NM600 under Sliding Wear

et al. 2019

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An investigation on the tribological properties of GCr15 sliding against NM600 was carried out using a high-temperature friction and wear tester. As the temperature rose from room temperature to 300 °C, the average friction coefficient of NM600 increased rapidly, then decreased rapidly, and then became stable. The wear volume and specific wear rate of NM600 increased rapidly, then decreased rapidly, and then increased slowly. The wear mechanism and matrix properties of the tested steel at different temperatures are the main reasons for the above results. At 20–50 °C, the main wear mechanism was adhesive wear, fatigue wear, and abrasive wear. At 100–150 ℃, the wear mechanism was mainly adhesive wear, fatigue wear, abrasive wear, and oxidation wear. At 200–300 °C, the wear mechanism was mainly oxidation wear and abrasive wear.

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Effect of ball rotation speed on wear coefficient and particle behavior in micro-abrasive wear tests

Cited by 13 publications

References 9 publications

Tribological Properties of Mo-Si-B Alloys Doped with La2O3 and Tested at 293–1173 K

Tribological Properties of Mo-Si-B Alloys Doped with La2O3 and Tested at 293–1173 K

Study on the Influence of the Ball Material on Abrasive Particles’ Dynamics in Ball-Cratering Thin Coatings Wear Tests

Effects of Temperature on the Tribological Properties of NM600 under Sliding Wear

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