Martensitic transformation and mechanical behavior of a medium-entropy alloy

Wang, C.; Lin, Kai-Nan; Zhao, Yilu; Yang, Tao; Zhang, Tianlong; Liu, W.H.; Hsueh, Chun‐Hway; Lin, Hung-Yin; Kai, Ji‐Jung; Liu, C.T.

doi:10.1016/j.msea.2020.139371

Cited by 23 publications

(2 citation statements)

References 49 publications

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“…The use of TMT alloys in surface composition is explained by their unique functional and mechanical properties. 5,6 They possess such functional effects as transformation plasticity (accumulation of large deformation upon cooling under load), shape memory (restoration of accumulated deformation upon heating), pseudoelasticity (the ability to accumulate large deformation, which is reversible during unloading), as well as increased strength, wear and corrosion resistance.…”

Section: Introductionmentioning

confidence: 99%

Physicomechanical and design characteristics of surface high-entropy alloys

Rusinov

Blednova

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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We investigated the phase composition of high-entropy shape memory alloys CoCuTiZrHf, NiCoTiZrHf, NiCuTiZrHf, ZrCuNiCoTi, TiNiZrHfCoCu after HVOF, thermomechanical treatment and thermal cycling. We have also developed criteria for calculating the energy capacity, enthalpy, entropy, theoretical strength of high-entropy alloys, taking into account the chemical composition and structural-phase state according to the results of X-ray phase analysis. We proposed a criterion for assessing the damageability of high-entropy alloys. The article describes calculations of energy consumption, entropy, enthalpy, theoretical strength of high-entropy alloys CoCuTiZrHf, NiCoTiZrHf, NiCuTiZrHf, ZrCuNiCoTi, TiNiZrHfCoCu both after HVOF and after thermomechanical treatment. After full-scale mechanical tests of surface-modified layers of high-entropy materials for bending with rotation, we obtained experimental values of cyclic durability and plotted fatigue curves. The calculated assessment of the cyclic durability was carried out according to the developed mathematical criteria. We calculated the damageability of high-entropy alloys and constructed the graphical curves of the dependence of the damageability on the cyclic life.

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Section: Introductionmentioning

confidence: 99%

Physicomechanical and design characteristics of surface high-entropy alloys

Rusinov

Blednova

2021

Proceedings of the Institution of Mechanical Engineers, Part L:

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“…Intra-entity heterogeneity within a single nanomaterial entity is emergently revealed to exist in a spatial manner, accompanied by the advancements of a suite of EM characterization methods. While crystalline materials are associated with high phase purity and high structural uniformity, methods such as backscattered electron imaging and four-dimensional scanning transmission electron microscopy (4D-STEM) have been used to discover nanoscale phase orientation domains in metals, 8 oxides, 9 and conjugated polymer thin films. 10 The interfaces at the boundaries of such domains, many formed into percolated networks, can change the kinetic barriers during mass and charge transport.…”

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confidence: 99%