High-Temperature Tensile Strength of Al10Co25Cr8Fe15Ni36Ti6 Compositionally Complex Alloy (High-Entropy Alloy)

On the Path to Optimizing the Al-Co-Cr-Cu-Fe-Ni-Ti High Entropy Alloy Family for High Temperature Applications

“…Finally, tensile tests on three of the six alloys, namely Alloy 1 [23], Alloy 4 [18], and Alloy 6 [24] give a last tool for comparing the alloys (see Figure 6). Tensile tests have been carried out at different temperatures and the obtained data has been compared with that of commercial alloys like Alloy 800H [25] and Inconel 617 [26].…”

“…Alloy 1 has an intermediate strength. The last alloy, Alloy 6, shows the best tensile properties at all investigated temperatures [24]. This alloy will thus be kept for further optimization.…”

A high-entropy alloy with hierarchical nanoprecipitates and ultrahigh strength

“…Precipitates are often observed in HEAs when a significantly positive enthalpy of mixing (or significantly negative enthalpy of formation of intermetallic phases) cannot be counteracted by a high entropy of mixing ( 17 , 27 , 28 ). A dispersion of coherent γ′ precipitates in the γ matrix in some Al- and/or Ti-containing HEAs leads to high strength/hardness at room temperature and at high temperatures ( 17 , 27 , 28 , 31 ). …”

Phase Evolution of the AlxNbTiVZr (x = 0; 0.5; 1; 1.5) High Entropy Alloys

“…Many alloys with attractive properties, such as high room temperature strength [3][4][5], extraordinary fracture or impact toughness [6][7][8], and high wear resistance [9] were reported. One of the particularly attractive properties, demonstrated by some HEAs, is a high strength at elevated temperatures, which makes them promising materials for high-temperature applications, which are required in, for example, aerospace industry [10][11][12][13][14][15].…”