Microstructure, mechanical and tribological properties of TiBC coatings by DC magnetron sputtering onto AISI M2 steel using independent TiB2 and graphite targets

Contreras, Elbert; Galindez, Y.; Botero, Maryory Astrid Gómez

doi:10.1016/j.surfcoat.2018.05.079

Cited by 20 publications

(2 citation statements)

References 21 publications

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“…These coatings were as hard as the pure TiB 2 coating and could be toughened without hardness loss by Ni. E. Contreras et al [15] analyzed the coatings TiB 2 -C. All Ti-B-C coatings exhibit high friction coefficients. This is due to the nanocrystalline structure and high hardness.…”

Section: Introductionmentioning

confidence: 99%

Influence of W Addition on Microstructure and Resistance to Brittle Cracking of TiB2 Coatings Deposited by DCMS

et al. 2021

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The aim of this work was to determine the influence of the tungsten addition to TiB2 coatings on their microstructure and brittle cracking resistance. Four coatings of different compositions (0, 7, 15, and 20 at.% of W) were deposited by magnetron sputtering from TiB2 and W targets. The coatings were investigated by the following methods: X-ray diffraction (XRD), transmission electron microscopy (TEM), atomic force microscopy (AFM) and X-ray photoelectron spectroscopy (XPS). All coatings had a homogeneous columnar structure with decreasing column width as the tungsten content increased. XRD and XPS analysis showed the presence of TiB2 and nonstoichiometric TiBx phases with an excess or deficiency of boron depending on composition. The crystalline size decreased from 27 nm to 10 nm with increasing W content. The brittle cracking resistance improved with increasing content of TiBx phase with deficiency of B and decreasing crystalline size.

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Section: Introductionmentioning

confidence: 99%

Influence of W Addition on Microstructure and Resistance to Brittle Cracking of TiB2 Coatings Deposited by DCMS

et al. 2021

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“…Later, an ab-initio modeling of similar materials was performed and it was reported that crystalline Ta 2 BC and W 2 BC in particular are also promising candidates for experimental synthesis owing to their calculated elastic properties indicating their simultaneous high stiffness and moderate ductility [13]. Although experimental studies of coating systems like Ti-B-C [14][15][16][17][18][19][20], Ta-B-C [21], Nb-B-C [22], and W-B-C [19,[23][24][25][26][27][28] potentially leading to the formation of the X 2 BC crystalline structure have been published, no formation of the ternary crystalline X 2 BC phase other than Mo 2 BC has ever been reported [11,13].…”

Section: Introductionmentioning

confidence: 99%

Composition, Structure and Mechanical Properties of Industrially Sputtered Ta–B–C Coatings

et al. 2020

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Ta–B–C coatings were non-reactively sputter-deposited in an industrial batch coater from a single segmented rotating cylindrical cathode employing a combinatorial approach. The chemical composition, morphology, microstructure, mechanical properties, and fracture resistance of the coatings were investigated. Their mechanical properties were linked to their microstructure and phase composition. Coatings placed stationary in front of the racetrack of the target and those performing a 1-axis rotation around the substrate carousel are compared. Utilization of the substrate rotation has no significant effect on the chemical composition of the coatings deposited at the same position compared to the cathode. Whereas the morphology of coatings with corresponding chemical composition is similar for stationary as well as rotating samples, the rotating coatings exhibit a distinct multilayered structure with a repetition period in the range of nanometers despite utilizing a non-reactive process and a single sputter source. All the coatings are either amorphous, nanocomposite or nanocrystalline depending on their chemical composition. The presence of TaC, TaB, and/or TaB2 phases is identified. The crystallite size is typically less than 5 nm. The highest hardness of the coatings is associated with the presence of larger grains in a nanocomposite structure or formation of polycrystalline coatings. The number, density, and length of cracks observed after high-load indentation is on par with current optimized commercially available protective coatings.

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Effect of Carbon-Doping on Microstructure and Nanomechanical/Tribological Behavior of Ti–B–C Coatings onto H13 Steel

et al. 2021

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Microstructure, mechanical and tribological properties of TiBC coatings by DC magnetron sputtering onto AISI M2 steel using independent TiB2 and graphite targets

Cited by 20 publications

References 21 publications

Influence of W Addition on Microstructure and Resistance to Brittle Cracking of TiB2 Coatings Deposited by DCMS

Influence of W Addition on Microstructure and Resistance to Brittle Cracking of TiB2 Coatings Deposited by DCMS

Composition, Structure and Mechanical Properties of Industrially Sputtered Ta–B–C Coatings

Effect of Carbon-Doping on Microstructure and Nanomechanical/Tribological Behavior of Ti–B–C Coatings onto H13 Steel

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