Effect of Additive Elements (x = Cr, Mn, Zn, Sn) on the Phase Evolution and Thermodynamic Complexity of AlCuSiFe-x High Entropy Alloys Fabricated via Powder Metallurgy

Complementary Functions of Vanadium in Boosting Electrocatalytic Activity of CuCoNiFeMn High‐Entropy Alloy for Water Splitting

“…As shown in Table S1 (Supporting Information), the lattice constant of V 1.0 ‐HEA decreased based on the following: i) the atomic size difference increased to 2.55% by incorporating V, inducing severe lattice distortion by reducing the average linear distance between atoms, ii) the φ value increased to 25.51 mol·K kJ −1 as the bonding energy between atoms increased, and iii) the atomic size mismatching increased while optimizing the severe lattice with a reduced interatomic distance. [ 26–28 ] Consequently, the XRD analysis demonstrated that V was successfully incorporated in the HEA with noticeable lattice constant reduction and no secondary phase formation. However, V 1.5 ‐HEA showed the VEC mix and ∆ χ values of 7.94 and 0.144, respectively (Table S2, Supporting Information), further confirming the phase separation.…”

Correlation between the nanomechanical characteristic and the phase transformation of BCC-based high entropy alloys produced via powder metallurgy

“…Similarly, the brittle nature of BCC HEAs hinders their application in load-bearing safety structures. To overcome these drawbacks, versatile combinations of HEAs have been proposed in the existing literature [6][7][8][9]. Nevertheless, owing to their exceptional mechanical performance and thermomechanical stability, HEAs are employed in various applications, including in nuclear reactors, spacecraft components and additive manufacturing, and have attracted significant research [10][11][12][13].…”

Oxidative and abrasive wear of multiphase AlSi0.75TiMnFeCux (X = 0, 0.25, 0.5) high entropy alloy under non-lubricating reciprocating motion

“…Recent researchers have actively shown the effect of various elemental additives in HEAs to enhance their mechanical properties by mixed valence electron concentration (VEC) approach [16] and use of metallic additive [11,[16][17][18][19]. Many research efforts have been devoted to the microstructure and mechanical performance of AlCoCrFeNi HEAs [17][18][19].…”

“…Recent researchers have actively shown the effect of various elemental additives in HEAs to enhance their mechanical properties by mixed valence electron concentration (VEC) approach [16] and use of metallic additive [11,[16][17][18][19]. Many research efforts have been devoted to the microstructure and mechanical performance of AlCoCrFeNi HEAs [17][18][19]. The addition of Cu to AlCoCrFeNi HEA has been shown to enhance the Cu-rich phases in the BCC matrix which results from the positive mixing enthalpy of Cu with other elements that is separated across the matrix region [12,20,21].…”