Wear behaviour of wear-resistant adaptive nano-multilayered Ti-Al-Mo-N coatings

Сергевнин, В. С.; Блинков, И. В.; Volkhonskii, A. O.; Белов, Д. С.; Кузнецов, Денис; Горшенков, М.В.; Скрылева, Е. А.

doi:10.1016/j.apsusc.2016.06.102

Cited by 47 publications

(19 citation statements)

References 22 publications

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“…Further improvement in the performance properties of the (Mo,Al)N coating can be achieved due to the introduction in its composition of additional elements, in particular, Ti, Zr, or Cr [36][37][38][39][40]. The introduction of Ti decreases the coefficient of friction [36], increases hardness and wear resistance [36,[41][42][43][44][45], and simultaneously provides good resistance to cracking [43]. The introduction of Cr in the composition of the (Mo,Al)N coating also increases its hardness (to 41.2 GPa [46]) and wear resistance [38,46].…”

Section: Introductionmentioning

confidence: 99%

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

et al. 2022

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This paper discusses the results of a study focused on the nature of the interaction of Me-MeN-(Me,Mo,Al)N coatings (where Me = zirconium (Zr), titanium (Ti), or chromium (Cr)) with a contact medium based on the Ni-Cr system. The studies were carried out during the turning of nickel–chromium alloy at different cutting speeds. The hardness of the coatings was found, and their nanostructure and phase composition were studied. The experiments were conducted using transmission electron microscopy (TEM), X-ray diffraction (XRD), and selected area electron diffraction (SAED). According to the studies, at elevated cutting speeds, the highest wear resistance is demonstrated by the tools with the ZrN-based coating, while at lower cutting speeds, the tools with the TiN- and CrN-based coatings had higher wear resistance. At elevated cutting speeds, the experiments detected the active formation of oxides in the ZrN-based coating and less active formation of oxides in the CrN-based coating. No formation of oxides was detected in the TiN-based coating. The patterns of cracking in the coatings were also studied.

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Section: Introductionmentioning

confidence: 99%

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

et al. 2022

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“…Moreover, the molybdenum contained in these coatings has the ability to form oxides that act as a lubricant to effectively reduce tribological wear. It is assumed that the low friction coefficient of approximately 0.3 [12,13] for coatings containing Mo is associated with the formation of the Magneli MoO 3 phase during the friction process, which is characterized by favorable sliding properties [14,15].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of the Structure, Mechanical, and Tribological Properties of a Mo-Mo2N Nanocomposite Coating Deposited on the Ti6Al4V Alloy by Magnetron Sputtering

et al. 2021

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Mo-Mo2N nanocomposite coating was produced by reactive magnetron sputtering of a molybdenum target, in the atmosphere, of Ar and N2 gases. Coating was deposited on Ti6Al4V titanium alloy. Presented are the results of analysis of the XRD crystal structure, microscopic SEM, TEM and AFM analysis, measurements of hardness, Young’s modulus, and adhesion. Coating consisted of α-Mo phase, constituting the matrix, and γ-Mo2N reinforcing phase, which had columnar structure. The size of crystallite phases averaged 20.4 nm for the Mo phase and 14.1 nm for the Mo2N phase. Increasing nitrogen flow rate leads to the fragmentation of the columnar grains and increased hardness from 22.3 GPa to 27.5 GPa. The resulting coating has a low Young’s modulus of 230 GPa to 240 GPa. Measurements of hardness and Young’s modulus were carried out using the nanoindentation method. Friction coefficient and tribological wear of the coatings were determined with a tribometer, using the multi-cycle oscillation method. Among tested coatings, the lowest friction coefficient was 0.3 and wear coefficient was 10 × 10−16 m3/N∙m. In addition, this coating has an average surface roughness of RMS < 2.4 nm, determined using AFM tests, as well as a good adhesion to the substrate. The dominant wear mechanism of the Mo-Mo2N coatings was abrasive wear and wear by oxidation. The Mo-Mo2N coating produced in this work is a prospective material for the elements of machines and devices operating in dry friction conditions.

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“…Hard nitride coatings have limited applications due to their poor toughness, regardless of their excellent hardness and wear resistant properties [1][2][3][4][5][6]. Researches on increasing the toughness of hard nitride coatings while maintaining their hardness has attracted considerable attention globally [7,8].…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni doping on the microstructure and toughness of CrAlN coatings deposited by magnetron sputtering

Wang¹,

Tang²,

Wan³

et al. 2020

Mater. Res. Express

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This study determines the effects of nickel (Ni) doping on the composition, phase structure, chemical valence state, hardness, and toughness of CrAlNiN coatings. CrAlNiN coatings with various Ni contents (0.00 at%-27.71 at%) were deposited on the surfaces of M2 tool steel and monocrystalline silicon (Si) using unbalanced magnetron sputter ion plating. The results showed that the CrAlNiN coatings possess a nanomultilayer structure, maintaining the face centered cubic crystal structure of the chromium aluminum nitride (CrAlN) coatings. The Ni in the coatings acts as a toughening phase to ease stress, to increase resistance to crack growth, and to delay the generation of cracks, thereby having an obvious toughening effect. At an Ni content of approximately 20.33%, the Ni toughening phase in the modulation layer tends to saturate and the effect of continuing the increase in Ni content is limited from the viewpoint of improving the toughness.

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Wear behaviour of wear-resistant adaptive nano-multilayered Ti-Al-Mo-N coatings

Cited by 47 publications

References 22 publications

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

Investigation of the Nature of the Interaction of Me-MeN-(Me,Mo,Al)N Coatings (Where Me = Zr, Ti, or Cr) with a Contact Medium Based on the Ni-Cr System

Characteristics of the Structure, Mechanical, and Tribological Properties of a Mo-Mo2N Nanocomposite Coating Deposited on the Ti6Al4V Alloy by Magnetron Sputtering

Effect of Ni doping on the microstructure and toughness of CrAlN coatings deposited by magnetron sputtering

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