2021
DOI: 10.1016/j.physb.2021.412851
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Temperature dependence of mechanical and thermodynamic properties of Ti(25+x)Zr25Nb25Ta(25-x) (x ≤ 20) refractory high entropy alloys: Influences of substitution of Ti for Ta

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Cited by 13 publications
(6 citation statements)
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“…The two most popular methods to represent the HEA random solid solution structure are special quasirandom structures (SQSs), as employed in the present work, and the coherent-potential approximation (CPA) method. Both have been used extensively in the scientific literature, for example, in [19][20][21][22][23][24][25][26][27][28][29]. The CPA method is a mean-field technique, where the effects of each of an HEA's constituents are embedded into a "medium" that mimics the chemical disorder of an HEA [30].…”
Section: Literature Reviewmentioning
confidence: 99%
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“…The two most popular methods to represent the HEA random solid solution structure are special quasirandom structures (SQSs), as employed in the present work, and the coherent-potential approximation (CPA) method. Both have been used extensively in the scientific literature, for example, in [19][20][21][22][23][24][25][26][27][28][29]. The CPA method is a mean-field technique, where the effects of each of an HEA's constituents are embedded into a "medium" that mimics the chemical disorder of an HEA [30].…”
Section: Literature Reviewmentioning
confidence: 99%
“…Sheikh et al also studied HfNbTaTiZr as a proof of concept, theorizing that decreasing the number of s+d valence electrons can be used as a guide for designing new RHEAs [41][42][43]. NbTaTiZr has been studied by Yang et al [28] using exact muffin-tin orbitals and the CPA to study the effects of varying the Ta/Ti ratio on the elastic and thermodynamic properties of the RHEAs and found higher concentrations of Ti as a replacement of Ta increases the ductility of the RHEA.…”
Section: Literature Reviewmentioning
confidence: 99%
“…However, the RHEAs containing W and Mo elements generally show high room-temperature brittleness and densities (>13 g/cm 3 [ 9 ]). The TaNbTiZr RHEA developed recently by replacing W and Mo with Ti and Zr can overcome the brittle and heavy bottlenecks and exhibits low density (8.9 g/cm 3 [ 15 ]), as well as high yield strength (410 MPa at 1000 °C [ 16 ]) and fracture strain (>48% at room temperature [ 17 ]), which has attracted extensive interests.…”
Section: Introductionmentioning
confidence: 99%
“…Different attempts to tune mechanical properties by minority alloying additions to the highly concentrated TNZT alloys have been reported, e.g., Fe [12][13][14], Si [12,13], O [12], Ag [14], Sn [14], etc. Variations of the base elements have also been studied, e.g., the Ti/Ta ratio [15,16]. So far, no systematic study of the effect of porosity on the mechanical properties of TNZT alloys has been reported.…”
Section: Introductionmentioning
confidence: 99%