Erosion behavior of CrN, CrAlN and CrAlN/CrN multilayer coatings deposited on Ti6Al4V

Guo, Huixia; Sun, Qinshuo; Zhou, Dapeng; Yu, Miao; Wang, Yongxin; Wang, Qiong; Li, Xiaojing

doi:10.1016/j.surfcoat.2022.128284

Cited by 30 publications

(5 citation statements)

References 45 publications

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“…The existence of the high fraction interface structure can achieve higher hardness to obtain higher H/E and H 3 /E 2 ratios. A recent study by H. Guo et al [ 51 ] showed that the CrAlN/CrN multilayer coating with the advantages of high hardness and high fracture toughness could improve the erosion resistance. The interface in the multilayer coating effectively hindered the propagation of the crack, and therefore increased the erosion resistance of the coatings.…”

Section: Resultsmentioning

confidence: 99%

Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN

Chang

Huang

2022

Materials

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In tribological applications, the degradation of alloy nitride coatings is an issue of increasing concern. The drawbacks of monolayer hard coatings can be overcome using a multilayer coating system. In this study, single-layer TiAlNbN and multilayer TiAlNbN/AlCrN coatings with AlCrN layer addition into TiAlNbN were prepared by cathodic arc evaporation (CAE). The multilayer TiAlNbN/AlCrN showed B1 NaCl structure, and the columnar structure continued from the bottom interlayer of CrN to the top multilayers without interruption. After AlCrN addition, the TiAlNbN/AlCrN coating consisted of TiAlNbN and AlCrN multilayers with a periodic thickness of 13.2 nm. The layer thicknesses of the TiAlNbN and AlCrN were 7 nm and 6.2 nm, respectively. The template growth of the TiAlNbN and AlCrN sublayers stabilized the cubic phases. The introduction of bottom CrN and the TiAlNbN/CrN transition layers possessed com-position-gradient that improved the adhesion strength of the coatings. The hardness of the deposited TiAlNbN was 30.2 ± 1.3 GPa. The TiAlNbN/AlCrN had higher hardness of 31.7 ± 3.5 GPa and improved tribological performance (wear rate = 8.2 ± 0.6 × 10−7 mm3/Nm) than those of TiAlNbN, which were because the multilayer architecture with AlCrN addition effectively resisted abrasion wear.

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Section: Resultsmentioning

confidence: 99%

Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN

Chang

Huang

2022

Materials

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“…This research of AlCrCN coating was conducted in two parts: (1) assessing the effects of the C 2 H 2 gas flow rate under a DC bias of −60 V and (2) assessing the effects of substrate bias voltage (−40 to −120 V) with the C 2 H 2 flow rate fixed at 5 sccm. The working pressure was maintained at roughly 0.4 Pa through the injection of a gas mixture comprising Ar (160 sccm), N 2 (160 sccm), and C 2 H 2 (5,8,10,13,15, or 20 sccm). The rotating speed of the substrate holder was 3 rpm at a temperature of 200 • C. The crystalline structure of the AlCrCN layers was characterized using a grazing incidence X-ray diffractometer (GIXRD, PANalytical, X'pert MRD, Almelo, The Netherlands) with an incident angle of 0.5.…”

Section: Experiments Detailsmentioning

confidence: 99%

“…Researchers have demonstrated the superiority of ternary transition metal nitride coatings over their binary counterparts [3][4][5]. The hardness and thermal stability of AlCrN can be enhanced by making adjustments to metastable Al x Cr 1-x N solid solutions and nanoscale domains [6].…”

Section: Introductionmentioning

confidence: 99%

Effects of Carbon Doping and DC Bias Voltage on Microstructure and Mechanical Properties of AlCrCN Films Synthesized via HiPIMS

et al. 2022

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This work compares the hardness and adhesion properties of AlCrN and AlCrCN hard coatings synthesized via HiPIMS using Al70Cr30 and Cr targets. The hardness and adhesion properties of AlCrCN films were optimized by performing deposition under various C2H2 flow rates (5, 8, 10, 13, 15, or 20 sccm) and DC bias voltages (−40, −60, −80, −100, or −120 V). EPMA results clearly indicated that the carbon content was increased from 1.9 to 12.2 at.% with increasing C2H2 flow rate from 5 to 20 sccm. XPS results confirmed a various content of chemical bonds (Cr-N, C-N, sp2, and sp3) with various C2H2 flow rate. Grain and columnar refinement in AlCrCN were derived from XRD, TEM, and SAED results. The higher hardness (28.6 GPa) and Young’s modulus (358 GPa) were obtained using an C2H2 flow rate of 5 sccm and a bias voltage of −60 V. Both of which subsequently decreased to 13.5 GPa and 212 GPa, respectively. This can be attributed to the C-N bond inhibiting the development of metal-N bonds. Increasing the bias voltage to −120 V increased the hardness to 32.9 GPa and the Young’s modulus to 372 GPa. Note that the application of bias voltage to enhance hardness should also be applicable to carbon-doped AlCrN films as well. All samples presented good adhesion characteristics (class 1; ISO26443:2008-06).

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“…19 Additionally, an increased Al content is beneficial for the partial segregation of Al atoms along grain boundaries, leading to the formation of a continuous amorphous AlN network and further enhancing the strength of the coating. 20 Guo et al 21 investigated the corrosion resistance of CrN, CrAlN, and CrAlN/CrN multilayer coatings and found that the addition of Al significantly improved the hardness, fracture toughness, and corrosion resistance of the CrN coating. Moreover, the corrosion resistance of CrAlN/CrN multilayer coatings was further enhanced through a strategic structural design.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical corrosion and tribocorrosion behavior of CrN and CrAlN coatings in artificial seawater

Bai,

Li,

Guo

et al. 2024

Int J Applied Ceramic Tech

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This study investigated the corrosion and tribocorrosion behavior of CrN and CrAlN coatings deposited on steel through direct current magnetron sputtering. Additionally, the effects of Al addition on the microstructure, corrosion inhibition, and tribocorrosion behavior of CrN coatings were evaluated. Compared with the CrN coating, the CrAlN coating exhibited a denser columnar crystal structure and a higher hardness of 23.8 GPa. The CrAlN coating reacted with water to form Al2O3 and Cr2O3 films, which enhanced its corrosion resistance. Moreover, the addition of Al enhanced the wear resistance of the CrN coating and reduced the material loss due to corrosion, wear, and their synergistic effects. The CrAlN coating exhibited a low corrosion current density of 1.14 × 10−8 A/cm2, indicating a 92% reduction compared with the CrN coating. Furthermore, under either open circuit potential or anodic accelerated tribocorrosion conditions, the CrAlN coating featured significantly lower total material loss and synergistic material loss than the CrN coating, demonstrating higher corrosion and tribocorrosion protection.

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Erosion behavior of CrN, CrAlN and CrAlN/CrN multilayer coatings deposited on Ti6Al4V

Cited by 30 publications

References 45 publications

Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN

Improvement of Tribological Performance of TiAlNbN Hard Coatings by Adding AlCrN

Effects of Carbon Doping and DC Bias Voltage on Microstructure and Mechanical Properties of AlCrCN Films Synthesized via HiPIMS

Electrochemical corrosion and tribocorrosion behavior of CrN and CrAlN coatings in artificial seawater

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