Coatings of FeAlCoCuNiV high entropy alloy

Dou, Dan; Li, X. C.; Zheng, Z. Y.; Li, J. C.

doi:10.1080/02670844.2016.1148380

Cited by 44 publications

(18 citation statements)

References 34 publications

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“…These are focussed on mechanical properties [4][5][6], structure and morphology [7], electrical properties [8], and magnetic properties [9]. There has been a particular focus on thin films of the HEA CrFeCoNiCu, with [10][11][12][13][14][15] or without a sixth component [16,17].…”

Section: Introductionmentioning

confidence: 99%

Thin films of AlCrFeCoNiCu high-entropy alloy by pulsed laser deposition

Cropper

2018

Applied Surface Science

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Pulsed laser deposition has been used to prepare thin films of the high entropy alloy AlCrFeCoNiCu. The 35 nm films were deposited in ultra-high vacuum onto glass at room temperature and above and analysed using X-ray diffraction and X-ray photoelectron spectroscopy. Films deposited at room temperature exhibit a mix of FCC and BCC reflections, the FCC crystallites having size similar to the film thickness, but the BCC crystallites are larger. The intensity of the reflections from both crystal structures reduce with increasing deposition temperature, the fall in BCC commencing at lower temperature than the FCC associated with a reduction of the content of Al and Cu. X-ray photoelectron spectroscopy shows that the films deposited at room temperature are closer to stoichiometry than those at higher temperatures. An important feature of the X-ray photoelectron spectroscopy depth profiles is surface segregation, the outer 3 nm of the high entropy alloy films has higher concentration of Al and, to a lesser extent, Cr. Highlights • The films exhibit mixed FCC and BCC structure. • With increasing deposition temperature, FCC and BCC reflections reduce associated with loss of Al and Cu. • Surface segregation enriches the surface of the films in Al and to a lesser extent Cr.

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Section: Introductionmentioning

confidence: 99%

Thin films of AlCrFeCoNiCu high-entropy alloy by pulsed laser deposition

Cropper

2018

Applied Surface Science

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“…The i corr of the AlCoCrFeNi coating is extremely low, representing an outstanding corrosion resistance. [38] obtained by magnetron sputtering [36]. The synthesized thin films could be used as the wear-resistant coatings in corrosive medium environments, such as in the petrochemical industry and marine industry.…”

Section: Coating By Laser Claddingmentioning

confidence: 99%

Corrosion-Resistant High-Entropy Alloys: A Review

Shi

Yang

Liaw

2017

Metals

684

205

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Corrosion destroys more than three percent of the world's gross domestic product. Therefore, the design of highly corrosion-resistant materials is urgently needed. By breaking the classical alloy-design philosophy, high-entropy alloys (HEAs) possess unique microstructures, which are solid solutions with random arrangements of multiple elements. The particular locally-disordered chemical environment is expected to lead to unique corrosion-resistant properties. In this review, the studies of the corrosion-resistant HEAs during the last decade are summarized. The corrosion-resistant properties of HEAs in various aqueous environments and the corrosion behavior of HEA coatings are presented. The effects of environments, alloying elements, and processing methods on the corrosion resistance are analyzed in detail. Furthermore, the possible directions of future work regarding the corrosion behavior of HEAs are suggested.

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“…Therefore, incorporating HEA as a thin film material would tremendously extend the scope of its practical application. Among the methods for fabricating HEA films, sputtering is the most widely used because of its fast and efficient fabrication procedure [21,22]. For instance, AlCoCrCu 0.5 NiFe [23], AlCoCrCuFeNi [24], and CoCrFeCuNi HEA films [25] have previously been fabricated through sputtering, and their mechanical properties have been investigated.…”

Section: Introductionmentioning

confidence: 99%

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

et al. 2017

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Abstract:The HEA-CoCrFeNiAl 0.3 thin film in this study has been successfully developed by radio frequency (RF) magnetron sputtering to meet the increasing demand in engineering applications. Its microstructure and surface profile were investigated accordingly. The as-synthesized HEA film was found to have a homogeneous element distribution and ultra-smooth surface, exhibiting a typical face-centered cubic (FCC) solid solution. The film showed better mechanical properties than its bulk counterpart, with a Young's modulus and hardness of~201.4 GPa and~11.5 GPa, respectively. Furthermore, corrosion tests demonstrated decreased sensitivity to localized corrosion in comparison to the commercial 304 stainless steel in NaCl solution.

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Coatings of FeAlCoCuNiV high entropy alloy

Cited by 44 publications

References 34 publications

Thin films of AlCrFeCoNiCu high-entropy alloy by pulsed laser deposition

Thin films of AlCrFeCoNiCu high-entropy alloy by pulsed laser deposition

Corrosion-Resistant High-Entropy Alloys: A Review

Microstructure, Mechanical and Corrosion Behaviors of CoCrFeNiAl0.3 High Entropy Alloy (HEA) Films

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