Improving the hardness of high entropy nitride (Cr0.35Al0.25Nb0.12Si0.08V0.20)N coatings via tuning substrate temperature and bias for anti-wear applications

Lin, Yu-Chia; Hsu, Sheng-Yu; Song, Rui-Wen; Lo, Wei-Li; Lai, Yuan‐Tai; Tsai, Su-Yueh; Duh, Jenq‐Gong

doi:10.1016/j.surfcoat.2020.126417

Cited by 52 publications

(9 citation statements)

References 38 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A dense microstructure of film can result from the high mobility of sputtered atoms presenting high hardness. Lin et al reported the reduction of residual stress and the annihilation of vacancies in (Cr 0.35 Al 0.25 Nb 0.12 Si 0.08 V 0.20 )N film by increasing the temperature, resulting in improved hardness [28]. In the case of FeCoNiAlMnW film, Sun et al [66] observed a fluctuated variation of the hardness by changing the temperature of the substrate.…”

Section: Mechanical and Tribological Properties 421 Hardnessmentioning

confidence: 99%

“…Using the magnetron sputtering technique, a series of deposition parameters have been used to control the microstructure of HEFs. The parameters include gas flow rate [13,21,[24][25][26], substrate temperature and pressure [27,28], as well as the bias voltage [29,30]. The entropy is the launch pad for the future exploration of new materials to be exploited in different fields.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Recent Progress on High-Entropy Films Deposited by Magnetron Sputtering

2022

View full text Add to dashboard Cite

High-entropy films (HEFs) are of considerable interest in surface engineering applications due to their superior properties, such as good corrosion resistance, good thermal stability and excellent high temperature oxidation. Recently, the scientific community has seen an increasing development of the multicomponent coatings, improving their properties compared to conventional films. Technically, different strategies have been exploited to fabricate HEFs. Magnetron-sputtered HEFs have made significant advancements in this field. HEFs have various applications given their interesting performances. This article overviews the development and the outcome of HEFs prepared using the magnetron sputtering technique. The classification of HEFs is reported. The effect of magnetron sputtering parameters on the microstructural, mechanical, electrochemical and thermal properties of HEFs is also discussed. Applications of HEFs are reported in the last section.

show abstract

Section: Mechanical and Tribological Properties 421 Hardnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent Progress on High-Entropy Films Deposited by Magnetron Sputtering

2022

View full text Add to dashboard Cite

show abstract

“…The multiplex interfaces in the multilayers can result in an increase of hardness and toughness. The improved physical-mechanical and tribological properties of the HEAN-N50 multilayer coatings are originated from the gradient of coating structure, phase and elemental composition [18,41,49].…”

Section: Mechanical and Tribological Propertiesmentioning

confidence: 99%

“…The latest design approach is the concept of high entropy alloy (HEA), which can be depicted as multicomponent materials with five or more elements, and has led to a growing field of research exploring multiprincipal element materials where the atomic percentage of each element should be between 5% and 35% [13,14]. Most of the previous studies using the high-entropy concept are based on metallic alloy materials, but there is also a growing interest in these alloy materials with addition of N, O, or C, leading to the formation of high-entropy nitrides (HENs), oxides (HEOs) and carbides (HECs), respectively [15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Tribological and Mechanical Properties of Multicomponent CrVTiNbZr(N) Coatings

Chang

Chen

2021

Coatings

View full text Add to dashboard Cite

Multi-element material coating systems have received much attention for improving the mechanical performance in industry. However, they are still focused on ternary systems and seldom beyond quaternary ones. High entropy alloy (HEA) bulk material and thin films are systems that are each comprised of at least five principal metal elements in equally matched proportions, and some of them are found possessing much higher strength than traditional alloys. In this study, CrVTiNbZr high entropy alloy and nitrogen contained CrVTiNbZr(N) nitride coatings were synthesized using high ionization cathodic-arc deposition. A chromium-vanadium alloy target, a titanium-niobium alloy target and a pure zirconium target were used for the deposition. By controlling the nitrogen content and cathode current, the CrNbTiVZr(N) coating with gradient or multilayered composition control possessed different microstructures and mechanical properties. The effect of the nitrogen content on the chemical composition, microstructure and mechanical properties of the CrVTiNbZr(N) coatings was investigated. Compact columnar microstructure was obtained for the synthesized CrVTiNbZr(N) coatings. The CrVTiNbZrN coating (HEAN-N165), which was deposited with nitrogen flow rate of 165 standard cubic centimeters per minute (sccm), exhibited slightly blurred columnar and multilayered structures containing CrVN, TiNbN and ZrN. The design of multilayered CrVTiNbZrN coatings showed good adhesion strength. Improvement of adhesion strength was obtained with composition-gradient interlayers. The CrVTiNbZrN coating with nitrogen content higher than 50 at.% possessed the highest hardness (25.2 GPa) and the resistance to plastic deformation H3/E*2 (0.2 GPa) value, and therefore the lowest wear rate was obtained because of high abrasion wear resistance.

show abstract

“…High entropy ceramics are multi-principal component solid solution materials in which the molar amounts of metal elements at the same lattice sites are equal or near equal, including carbides [1][2][3][4], borides [5][6][7][8], oxides [9][10][11][12][13], silicides [14,15], nitrides [16][17][18] and fluorides [19], etc. High entropy carbides (HEC) have become new candidates of ultra-high temperature ceramics used as structural components in aerospace propulsion and nuclear reactor systems, due to the excellent properties such as high hardness [20,21], low thermal conductivity [22][23][24], better oxidation resistance [25,26], excellent electrical conductivity [27] and so on.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Single-phase High Entropy Carbides by a Modified Citric Acid Complexing Method

Liu¹,

Dang²,

Ni³

et al. 2021

Preprint

View full text Add to dashboard Cite

We developed a new method to synthesize single-phase transition metal carbide powders by combining citric acid complexing method and ball-milling dispersion. High-entropy carbides (Zr0.25Ti0.25Ta0.25Nb0.25)C (4TmC), (Zr0.2Ti0.2Ta0.2Nb0.2Hf0.2)C (5TmC-H) and (Zr0.2Ti0.2Ta0.2Nb0.2Mo0.2)C (5TmC-M) were successfully fabricated by this method using low-cost raw materials. The element and phase composition and microstructures of the obtained carbide powders were investigated. The relationships of synthesis process and temperature with chemical composition were also discussed. (Zr0.25Ti0.25Ta0.25Nb0.25)C can be obtained by a one-step process at 1550 °C, while (Zr0.2Ti0.2Ta0.2Nb0.2Hf0.2)C and (Zr0.2Ti0.2Ta0.2Nb0.2Mo0.2)C are fabricated by a two-step process of carbothermal reduction followed by solid solution at the temperatures not lower than 1850 °C and 1650 °C. The higher synthesis temperatures of the five-component carbides are attributed to the obvious sluggish diffusion effect induced by the larger lattice distortions. The particle sizes of (Zr0.25Ti0.25Ta0.25Nb0.25)C, (Zr0.2Ti0.2Ta0.2Nb0.2Hf0.2)C and (Zr0.2Ti0.2Ta0.2Nb0.2Mo0.2)C powders are 118.2±26.1 nm (at 1550 °C), 284.8±73.7 nm (at 1850 °C) and 65.5±13.9 nm (at 1750 °C), respectively.

show abstract

Improving the hardness of high entropy nitride (Cr0.35Al0.25Nb0.12Si0.08V0.20)N coatings via tuning substrate temperature and bias for anti-wear applications

Cited by 52 publications

References 38 publications

Recent Progress on High-Entropy Films Deposited by Magnetron Sputtering

Recent Progress on High-Entropy Films Deposited by Magnetron Sputtering

Tribological and Mechanical Properties of Multicomponent CrVTiNbZr(N) Coatings

Preparation of Single-phase High Entropy Carbides by a Modified Citric Acid Complexing Method

Contact Info

Product

Resources

About