Analysis of wear mechanisms in low-friction AlMgB14–TiB2 coatings

Cook, B. A.; Harringa, J. L.; Anderegg, James W.; Russell, Alan M.; Qu, Jun; Blau, Peter J.; Higdon, Clifton; Elmoursi, Alaa A.

doi:10.1016/j.surfcoat.2010.09.007

Cited by 52 publications

(18 citation statements)

References 12 publications

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“…The phases were identified with the help of metallographic tests (Figure 3 It consisted of columnar crystals oriented along the direction of the boron's diffusion in the steel. Such structure is characteristic for Fe 2 B borides and is described among others by Martini et al 22 and Cook et al 23 The length of the Fe 2 B columnar crystals (Figure 3(c)) was about 80 mm and diameter was about 20 mm. Between the layer of Fe 2 B and core of the specimen (steel C45), one could observe a highly developed surface boundary (Figure 3(c)).…”

Section: Structure Properties Of Borided Ring and Counterpartssupporting

confidence: 74%

The mechanisms of tribological wear in lubricated sliding bearings composed of soft bearing alloys with borided steel

Dziedzic

Lubas

Bochnowski

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part J:

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Section: Structure Properties Of Borided Ring and Counterpartssupporting

confidence: 74%

The mechanisms of tribological wear in lubricated sliding bearings composed of soft bearing alloys with borided steel

Dziedzic

Lubas

Bochnowski

et al. 2015

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…According to previous studies, the life of uncoated carbide tool is less than 6 min under dry condition, and serious crater wear and adhesive wear occur when machining Ti6Al4V (TC4) [13]. There are several kinds of coating, such as TiAlN, TiCN, CrAlSiN, TiAlSiN, AlMgB 14 -TiB 2 and so on [6,[14][15][16][17]. TiAlN coating is one kind of excellent coating and possesses strong chemical stability and good resistance of oxidation wear at 900 • C [18].…”

Section: Introductionmentioning

confidence: 99%

Machining Performance of TiAlN-Coated Cemented Carbide Tools with Chip Groove in Machining Titanium Alloy Ti-6Al-0.6Cr-0.4Fe-0.4Si-0.01B

Ren

Zhang

et al. 2018

Metals

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In this paper, TiAlN-coated cemented carbide tools with chip groove were used to machine titanium alloy Ti-6Al-0.6Cr-0.4Fe-0.4Si-0.01B under dry conditions in order to investigate the machining performance of this cutting tool. Wear mechanisms of TiAlN-coated cemented carbide tools with chip groove were studied and compared to the uncoated cemented carbide tools (K20) with a scanning electron microscope (SEM) and energy dispersive spectrometer (EDS). The effects of the cutting parameters (cutting speed, feed rate and depth of cut) on tool life and workpiece surface roughness of TiAlN-coated cemented carbide tools with chip groove were studied with a 3D super-depth-of-field instrument and a surface profile instrument, respectively. The results showed that the TiAlN-coated cemented carbide tools with chip groove were more suitable for machining TC7. The adhesive wear, diffusion wear, crater wear, and stripping occurred during machining, and the large built-up edge formed on the rake face. The optimal cutting parameters of TiAlN-coated cemented carbide tools were acquired. The surface roughness Ra decreased with the increase of the cutting speed, while it increased with the increase of the feed rate.

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“…Single-phase amorphous AlMgB 14 thin films produced by pulse-laser-deposition were reported with a high nanoindentation hardness of >30 GPa [8,9]. The AlMgB 14 -TiB 2 composite coating was later developed by physical vapor deposition (PVD), and demonstrated high wear resistance [10][11][12]. Correlated results from lubrication modeling and friction bench testing suggest that using the BAMC and DLC together would minimize the slip ratio at the rolling-sliding contact and reduce the sliding friction at both interfaces.…”

Section: Introductionmentioning

confidence: 99%

Friction behavior of a multi-interface system and improved performance by AlMgB14–TiB2–C and diamond-like-carbon coatings

Blau

Higdon³

et al. 2016

Tribology International

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This study investigated friction behavior of a bearing system with two interfaces involved: a roller component experiencing rolling-sliding interaction against twin-cylinders under point contacts while simultaneously undergoing pure sliding interaction against a socket under a conformal contact. Lubrication modeling predicted a strong correlation between the roller's rolling condition and the system's friction behavior. Experimental observations first validated the analytical predictions using steel and iron components. Diamond-like-carbon (DLC) coating and AlMgB 14-TiB 2 coating with a carbon topcoat (BAMC) were then applied to the roller and twin-cylinders, respectively. Testing and analysis results suggest that the coatings effectively decreased the slip ratio for the roller-cylinder contact and the sliding friction at both bearing interfaces and, as a result, significantly reduced the system frictional torque.

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Analysis of wear mechanisms in low-friction AlMgB14–TiB2 coatings

Cited by 52 publications

References 12 publications

The mechanisms of tribological wear in lubricated sliding bearings composed of soft bearing alloys with borided steel

The mechanisms of tribological wear in lubricated sliding bearings composed of soft bearing alloys with borided steel

Machining Performance of TiAlN-Coated Cemented Carbide Tools with Chip Groove in Machining Titanium Alloy Ti-6Al-0.6Cr-0.4Fe-0.4Si-0.01B

Friction behavior of a multi-interface system and improved performance by AlMgB14–TiB2–C and diamond-like-carbon coatings

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