Nano-Crystallization of High-Entropy Amorphous NbTiAlSiWxNy Films Prepared by Magnetron Sputtering

Sheng, Wenjie; Yang, Xiao; Wang, Wenwen; Zhang, Yong

doi:10.3390/e18060226

Cited by 72 publications

(34 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…magnetron sputtering [34][35][36], laser cladding [37,38], spraying [39], electrodeposition [40], plasma-transferred arc cladding [41], and others. The present experimental results have proved that HEA films and coatings can show excellent mechanical and physical properties, such as the high hardness and elastic modulus [42,43], superior wear resistance [44], corrosion [45] and temperature resistance [46], as well as the appealing electrical [47] and magnetic properties [48].…”

Section: Introductionsupporting

confidence: 55%

Microstructures and properties of high-entropy alloy films and coatings: a review

Liu

Liaw

2018

Materials Research Letters

425

View full text Add to dashboard Cite

In the past 14 years, as a branch of high-entropy alloy (HEA) materials, HEA films and coatings have exhibited the attractive and unique properties, relative to the conventional film and coating materials. The recent research and development of HEA films and coatings are reviewed in this paper. At first, the basic concept of HEAs films and coatings are introduced. Then, their preparation technologies, microstructures and appealing properties are summarized. Moreover, the possible reasons and design criteria for achieving the excellent properties are discussed. Finally, the suggested future research work for the HEA films and coatings are outlined. IMPACT STATEMENT Preparation technologies, microstructures, and properties of HEA films and coatings are reviewed in this paper. The design criteria and suggested research directions are further discussed and proposed.

show abstract

Section: Introductionsupporting

confidence: 55%

Microstructures and properties of high-entropy alloy films and coatings: a review

Liu

Liaw

2018

Materials Research Letters

425

View full text Add to dashboard Cite

show abstract

“…Another significant potential application of high-entropy films is as diffusion barriers [144]. Sheng et al [145] proposed huge application potentials of high entropy films in the fields of solar thermal conversion systems.…”

Section: Figure 19mentioning

confidence: 99%

Science and technology in high-entropy alloys

2018

Self Cite

View full text Add to dashboard Cite

As human improve their ability to fabricate materials, alloys have evolved from simple to complex compositions, accordingly improving functions and performances, promoting the advancements of human civilization. In recent years, high-entropy alloys (HEAs) have attracted tremendous attention in various fields. With multiple principal components, they inherently possess unique microstructures and many impressive properties, such as high strength and hardness, excellent corrosion resistance, thermal stability, fatigue, fracture, and irradiation resistance, in terms of which they overwhelm the traditional alloys. All these properties have endowed HEAs with many promising potential applications. An in-depth understanding of the essence of HEAs is important to further developing numerous HEAs with better properties and performance in the future. In this paper, we review the recent development of HEAs, and summarize their preparation methods, composition design, phase formation and microstructures, various properties, and modeling and simulation calculations. In addition, the future trends and prospects of HEAs are put forward.

show abstract

“…Besides composition, fabrication methods can also affect the microstructure and mechanical properties of HEAs [20,21]. Magnetron sputtering and laser cladding are two of the most important methods for preparing HEA coatings [22][23][24][25][26][27][28]. Both N 2 flow rate and substrate bias affect hardness, the elastic modulus, and corrosive resistance of HEA coatings.…”

Section: Introductionmentioning

confidence: 99%

“…Sheng et al [32] used direct-current (DC) bias magnetron sputtering amorphous NbTiAlSiNx films with high hardness and modulus. The microstructures of the films are amorphous, and the microstructures are transformed into crystal structures at temperatures above 1000 • C. Sheng et al [23] reported that amorphous NbTiAlSiW x N y HEA films have high hardness and modulus, and are thermally stabile up to 700 • C, whereas the films transformed into crystal structures at temperatures greater than 1000 • C. Xing et al [33] reported that NbTiAlSiZrN x HEA films sputtered by direct current power had good thermal stability at 600 • C. The Cr 6 Fe 6 V 6 Ta 42 W 40 multicomponent alloy film exhibited great solar absorption at room temperature [34]. The (Al 0.5 CrFeNiTi 0.25 )N x HEA nitride films achieved higher hardness and Young's modulus than as-cast (Al 0.5 CrFeNiTi 0.25 )N x bulk alloys [35].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Mechanical Properties and Corrosion Resistance of NbTiAlSiZrNx High-Entropy Films Prepared by RF Magnetron Sputtering

Xing

Wang

Chen

et al. 2019

Entropy

Self Cite

View full text Add to dashboard Cite

In this study, we designed and fabricated NbTiAlSiZrNx high-entropy alloy (HEA) films. The parameters of the radio frequency (RF) pulse magnetron sputtering process were fixed to maintain the N2 flux ratio at 0%, 10%, 20%, 30%, 40%, and 50%. Subsequently, NbTiAlSiZrNx HEA films were deposited on the 304 stainless steel (SS) substrate. With an increasing N2 flow rate, the film deposited at a RN of 50% had the highest hardness (12.4 GPa), the highest modulus (169 GPa), a small roughness, and a beautiful color. The thicknesses of the films were gradually reduced from 298.8 nm to 200 nm, and all the thin films were of amorphous structure. The electrochemical corrosion resistance of the film in a 0.5 mol/L H2SO4 solution at room temperature was studied and the characteristics changed. The HEA films prepared at N2 flow rates of 10% and 30% were more prone to corrosion than 304 SS, but the corrosion rate was lower than that of 304 SS. NbTiAlSiZrNx HEA films prepared at N2 flow rates of 20%, 40%, and 50% were more corrosion-resistant than 304 SS. In addition, the passivation stability of the NbTiAlSiZrNx HEA was worse than that of 304 SS. Altogether, these results show that pitting corrosion occurred on NbTiAlSiZrNx HEA films.

show abstract

Nano-Crystallization of High-Entropy Amorphous NbTiAlSiWxNy Films Prepared by Magnetron Sputtering

Cited by 72 publications

References 26 publications

Microstructures and properties of high-entropy alloy films and coatings: a review

Microstructures and properties of high-entropy alloy films and coatings: a review

Science and technology in high-entropy alloys

Mechanical Properties and Corrosion Resistance of NbTiAlSiZrNx High-Entropy Films Prepared by RF Magnetron Sputtering

Contact Info

Product

Resources

About