Microstructure and the properties of FeCoCuNiSnx high entropy alloys

Liu, L.; Zhu, Jinyang; Zhang, Chi; Li, J.C.; Jiang, Q.

doi:10.1016/j.msea.2012.03.080

Cited by 124 publications

(36 citation statements)

References 20 publications

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“…The size of the o-lattice coincides almost exactly with the one given for Ni 3 Sn 2 in the JCPDS data sheets. CCFNSn x alloys with x in the range 0 to 0.5 have been studied by Liu [18]. An extrapolation to x = 1.0 yields a lattice constant of about 3.615 Å in good agreement with the present work.…”

Section: The Eects Of Adding a Fth Element To The Ccfn Alloysupporting

confidence: 86%

“…Not only details in the production process but also the production technique itself play an important role in the alloy phase composition. For example, after mechanical alloying, the alloy has been found to contain a minority bcc phase [18]. Furthermore, lattice constants, spanning a range from 3.55 to 3.59 Å, in many cases determined from one measured XRD diraction peak only, have been reported.…”

Section: Introductionmentioning

confidence: 99%

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Crystalline Structures of Some High Entropy Alloys Obtained by Neutron and X-Ray Diffraction

et al. 2015

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The understanding of the structure and the stability of high entropy alloys is still incomplete and the mechanisms behind the composition-property relationships are unclear. One reason is that few systematic and accurate determinations of their composition-dependent structure on atomic level have been made. In this paper some results on the structure obtained by X-ray and neutron diraction of the CoCrFeNi alloy, to which Pd, Sn and Cu have been added in dierent amounts, are reported. The investigations make it obvious that none of the alloys is completely homogeneous, as has earlier been suggested, and that they do not form a perfect solid solution.

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Section: The Eects Of Adding a Fth Element To The Ccfn Alloysupporting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Crystalline Structures of Some High Entropy Alloys Obtained by Neutron and X-Ray Diffraction

et al. 2015

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“…Besides the above, many other elements have been added to the Al-Co-Cr-Cu-Fe-Ni system (e.g. Zr [91], Nd [91], Nb [92], V [93,94], Y [95], Sn [96,97], Zn [98], and C [99,100]). …”

Section: Derivatives Of the Al-co-cr-cu-fe-ni Alloymentioning

confidence: 99%

High-Entropy Alloys: A Critical Review

Tsai

Yeh

2014

Materials Research Letters

2,311

802

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High-entropy alloys (HEAs) are alloys with five or more principal elements. Due to the distinct design concept, these alloys often exhibit unusual properties. Thus, there has been significant interest in these materials, leading to an emerging yet exciting new field. This paper briefly reviews some critical aspects of HEAs, including core effects, phases and crystal structures, mechanical properties, high-temperature properties, structural stabilities, and corrosion behaviors. Current challenges and important future directions are also pointed out.

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“…The addition of tin (Sn) has been found to increase the tensile strength of CCAs based on the CoCuFeNi and AlCoCrFeNi systems. 67,68 The impact of Sn additions on the corrosion of the FeCoNiCu system was studied by Zheng et al 69 The i corr values of the Sn-containing FeCoNiCu alloys in 3.5 wt. % NaCl were found to be lower than those of 304 SS in the same solution, with the lowest i corr observed for the FeCoNiCu alloy with a 0.03 molar ratio of Sn (Fig.…”

Section: The Influence Of Different Alloying Elements On the Corrosiomentioning

confidence: 99%

Corrosion of high entropy alloys

Qiu¹,

Thomas²,

Gibson³

et al. 2017

npj Mater Degrad

337

125

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High entropy alloys represent a unique class of metal alloys, comprising nominally five or more elements in near equiatomic proportions. High entropy alloys have gained significant interest on the basis that the high configurational entropy of such alloy systems is purported to result in a single-phase solid solution structure. While such a single-phase structure can occur in unique systems, it is now appreciated that the definition of high entropy alloys can be broader, with systems comprising only four elements possible of forming single phases, and most five (or more) element systems actually being multi (>2) phases. To this end, the notion of compositionally complex alloys is a more general description, with the concise review herein focusing on the corrosion of compositionally complex alloys (inclusive of high entropy alloys). It is noted that generally, in spite of complex compositions and in many cases complicated microstructural heterogeneity, compositionally complex alloys are nominally corrosion-resistant. This is discussed and aspects of the status and needs are presented.

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Microstructure and the properties of FeCoCuNiSnx high entropy alloys

Cited by 124 publications

References 20 publications

Crystalline Structures of Some High Entropy Alloys Obtained by Neutron and X-Ray Diffraction

Crystalline Structures of Some High Entropy Alloys Obtained by Neutron and X-Ray Diffraction

High-Entropy Alloys: A Critical Review

Corrosion of high entropy alloys

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