Chemical bonding and crystal structure of Zr-based intermetallic high-temperature shape memory alloys

Firstov, G.S.; Koval, Yu. N.; Timoshevskii, A. N.; Yablonovskii, S. O.; Humbeeck, Jan Van

doi:10.30970/cma6.0277

Cited by 11 publications

(5 citation statements)

References 9 publications

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“…The first is Cu 1.5 ZrNi 3.5 with a phase content of 10 at.% and with a lattice constant equal to a = 6.7671 Å. According to [15,16], the structure of Cu 1.5 ZrNi 3.5 is B2-a high-temperature austenitic phase ordered by the CsCl type (Pm3m-f.c.c. ).…”

Section: Resultsmentioning

confidence: 99%

High-Entropy ZrTiCrNiCu Coating

Guchenko¹,

Yurov²,

Goncharenko³

et al. 2021

Metallofiz. Noveishie Tekhnol.

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A high-entropy alloy ZrTiCrNiCu and coating are synthesized by mechanical alloying. The microhardness of the ZrTiCrNiCu coating is not inferior and in most cases exceeds the hardness of highly entropic equiatomic alloys. The wear resistance of the ZrTiCrNiCu coating is 3⋅10 −4 g/min, which also meets the special steels for wear resistance. A high-entropy coating has a low coefficient of friction. They turn out to be anti-friction, which, in all likelihood, leads to energy savings. The surface energy, contact potential difference, and electron work function for high entropy coatings are first determined in the work.

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Section: Resultsmentioning

confidence: 99%

High-Entropy ZrTiCrNiCu Coating

Guchenko¹,

Yurov²,

Goncharenko³

et al. 2021

Metallofiz. Noveishie Tekhnol.

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“…% and with a lattice constant a = 6.7671 Ǻ. According to [12,13], Cu 1.5 ZrNi 3.5 has the B2 structure, a high-temperature austenite phase ordered according to the CsCl type (Pm3m-fcc).…”

Section: Methodsmentioning

confidence: 99%

TRIBOLOGICAL CONTACTIN MATERIALS SYSTEMS"CuCrNiZrTi-M500", "CuCrNiZrTi-5140H", "CuCrNiZrTi-3310H"

Kubich¹

2022

Eurasian phys. tech. j.

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The limited information on the manifestation of the parameters of the molecular component of friction -the shear strength of the adhesive bond τ0and the piezoelectric coefficient βof the molecular component for each specific study predetermines the use of purposeful determination of parameters by modeling shear on small-sized samples in order to increase the objectivity and accuracy of the result assessment. The article poses the task of conducting definitive tribotechnical tests of the high-entropy alloy to assess its adaptability to loading and lubrication conditions during contact with steel, cast iron and to establish the nature of the manifestation of the parameters of adhesion properties by modeling shear on small samples. It was found that under conditions of drop lubrication, the surfaces of the samples of the studied materials appear to be compatible and are satisfactorily run-in. In this case, the parameters of high-speed and force loading determine the manifestation of boundary lubrication. The time reaching the steady-state friction mode is practically the same for all systems, and is observed after 7.5 minutes. The obtained graphic patterns and parameters of their mathematical approximation made it possible to determine the nature of the change in the adhesive properties of a high-entropy alloy with a change in shear rates.

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“…% and with a lattice constant equal to a = 6.7671 Ǻ. According to the works [16,17], the structure of Cu1.5ZrNi3.5 is B2, a hightemperature austenite phase. ordered by the CsCl type (Pm3m-fcc).…”

Section: Fig 3 Xps Crzrtinicu In Argonmentioning

confidence: 99%

“…The very good characteristics of the CrZrTiNiCu target coatings are most likely associated with titanium and zirconium nickelides. These compounds have the property of shape memory [16]. One of the actual areas of applied use of these materials are the so-called active devices (devices that perform mechanical work under the influence of heat, for example, drives).…”

Section: Intelligent Manufacturing and Materialsmentioning

confidence: 99%

Composition and Properties of High-Entropy CrZrTiNiCu Coating

Eremin

Yurov

Guchenko

2021

MSF

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In this work, a high-entropy alloy and CrZrTiNiCu coating were synthesized by mechanical alloying. It is shown that the microhardness of the CrZrTiNiCu coating is not inferior to and in most cases exceeds the hardness of high-entropy equiatomic alloys. The wear resistance of such a coating is 3·10-4 g/min, which also corresponds to special steels in terms of wear resistance. The high-entropy coating has a low coefficient of friction. It turns out to be antifrictional, which obviously leads to energy savings. For the first time, the surface energy, contact potential difference and work function of electrons for CrZrTiNiCu coating were determined.

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Chemical bonding and crystal structure of Zr-based intermetallic high-temperature shape memory alloys

Cited by 11 publications

References 9 publications

High-Entropy ZrTiCrNiCu Coating

High-Entropy ZrTiCrNiCu Coating

TRIBOLOGICAL CONTACTIN MATERIALS SYSTEMS"CuCrNiZrTi-M500", "CuCrNiZrTi-5140H", "CuCrNiZrTi-3310H"

Composition and Properties of High-Entropy CrZrTiNiCu Coating

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