Texture, microstructure and anti-wear characteristics in isostructural CrAlSiN/W2N multilayer coatings

Chan, Yu-Chen; Chen, Hsien‐Wei; Tsai, Yu‐Zen; Duh, Jenq‐Gong; Lee, Jyh-Wei

doi:10.1016/j.tsf.2013.03.106

Cited by 13 publications

(7 citation statements)

References 15 publications

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“…During the past few years, may investigations have been published dealing with the multilayer coatings and their improved tribological properties, their corrosion resistance and many other surface properties [27][28][29][30][31][32][33][34][35][36][37][38]. In the present study, new Zn-Fe multilayered alloy coatings were deposited on mild steel substrates using the dual bath electrodeposition technique.…”

Section: Introductionmentioning

confidence: 98%

Zn–Fe multilayered alloy coatings produced by electrodeposition

2018

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Zn-Fe multilayered alloy coatings were deposited on mild steel substrates using the dual bath electrodeposition technique. The produced coatings consisted of alternate Zn-1 wt% Fe and Zn-10 wt% Fe alloy sub-layers. Their periodicity length (total thickness of two adjacent alternate sub-layers) ranged between 2 and 8 μm. The surface and the crosssectional morphology of those coatings were studied with the aid of a metallurgical microscope and a scanning electron microscope. The crystal structure of the electrodeposited multilayered coatings was investigated using an X-ray diffractometer. The Zn-1 wt% Fe and Zn-10 wt% Fe alloy sub-layers consisted of two phases: the η-phase (Zn-Fe solid solution) and the δ 1-phase (intermetallic FeZn 7). A microhardness tester equipped with a Vickers intender was used to examine the microhardness of the produced coatings. It was found that the microhardness increased with the decrease of periodicity length, following a modified Hall-Petch relationship.

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Section: Introductionmentioning

confidence: 98%

Zn–Fe multilayered alloy coatings produced by electrodeposition

2018

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“…It can be seen that single-layer WN had a high hardness of about 28 GPa, a coefficient of friction ranging from 0.38 to 0.5 depending on the substrate material, and a specific wear rate of about (9.3 -11) ×10 6 mm 3 /Nm. However, a combination of tungsten nitride with TiN [6,7], CrAlSiN [8], and TiAgN [9] in a multilayer structure enhanced these parameters. This trend was especially significant for the specific wear rate reduced to (4.4 -1.0) × 10 6 mm 3 /Nm.…”

Section: Introductionmentioning

confidence: 98%

“…However, multilayers were characterized by compact and dense structure. Considering WN/CrAlSiN as an example, the tribological behavior was significantly improved since observation of cross-sections after the wear test revealed no cracks but only a decrease in total thickness and a 20-nm thick tribo-layer on the surface of the multilayer coating [8]. Thus, WN-based multilayer coatings have promising characteristics, but the number of various nitride combinations with WN is scarce so far.…”

Section: Introductionmentioning

confidence: 99%

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Effect of bias voltage on the structural properties of WN/NbN nanolayer coatings deposited by cathodic-arc evaporation

Smyrnova,

Sahul,

Haršáni

et al. 2024

J. Phys.: Conf. Ser.

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In this work, WN/NbN nanolaminate coatings were synthesized by cathodic-arc physical vapor deposition (CA-PVD) technique on a stainless-steel substrate. The paper reports the microstructure, cross-sectional morphology, surface roughness, and adhesion strength changes caused by variations in the absolute values of the negative substrate bias voltage, Us , in the 50-200 V range. Synthesized coatings were analyzed by Grazing incidence X-ray diffraction (GI-XRD), scanning transmission electron microscopy (STEM), scanning electron microscopy (SEM), laser scanning confocal microscopy (LSCM), and Daimler-Benz test. The phase analysis revealed that multilayer coatings had complex polycrystalline microstructure. They consisted of face-cantered cubic (fcc) β-W2N, fcc δ-NbN, and hexagonal ε-NbN phases. The total thickness and surface roughness had a descending trend with an increase in the absolute value of the negative bias voltage. Moreover, the WN/NbN coating deposited at Us = -50 V demonstrated the best adhesion strength to the substrate, suitable for protective coatings.

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“…Several studies have exploited these alloying effects by synthesizing CrAlSiN/W 2 N superlattice structures with a hardness up to 40.3 GPa, which is based on a solid solution strengthening mechanism and a nanolayered coating structure [10,11], resulting in increased wear resistance [12]. In our recent studies, we have investigated the sputtering of AlCrSiWN using targets that include all coating constituents.…”

Section: Introductionmentioning

confidence: 99%

Impact of Tungsten Incorporation on the Tribomechanical Behavior of AlCrWxSiN Films at Room and Elevated Temperature

2021

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AlCrWxSiN thin films (0 ≤ x ≤ 17.1 at.%) were synthesized by means of a hybrid magnetron sputtering process, merging direct current (DC) as well as tungsten high power impulse magnetron sputtering (HiPIMS) supplies. The influences of increasing the tungsten contents on the structural as well as the friction and wear behavior at room and high temperatures (500 °C) were elaborated. As a reference, a W61.4N38.6 system served to analyze synergetic effects on the oxidation behavior. Increased tungsten contents in AlCrWxSiN resulted in more distinctive (200)-, (202)-, and (311)- crystal orientations. A W/Cr ratio of ~1 could be correlated with a denser film growth, the highest hardness (24.3 ± 0.7 GPa), and a significantly decreased wear coefficient (<0.3 × 10−5 mm3/Nm). Tribological tests performed at room temperature revealed that the coefficient of friction decreased with higher tungsten contents to µ~0.35. In contrast, at elevated temperatures, the coefficient of friction increased with higher W concentrations due to spotty oxidations in the wear track, which resulted in a locally increased surface roughness. Finally, a phase transformation of the WN film to m-WO3 did not contribute to a friction reduction at 500 °C.

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Texture, microstructure and anti-wear characteristics in isostructural CrAlSiN/W2N multilayer coatings

Cited by 13 publications

References 15 publications

Zn–Fe multilayered alloy coatings produced by electrodeposition

Zn–Fe multilayered alloy coatings produced by electrodeposition

Effect of bias voltage on the structural properties of WN/NbN nanolayer coatings deposited by cathodic-arc evaporation

Impact of Tungsten Incorporation on the Tribomechanical Behavior of AlCrWxSiN Films at Room and Elevated Temperature

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