Structure and Propeties of Single-phase Si19.8Ti26.4Cr10.1Mn13.3Fe18.6Ni11.8 High Entropy Alloy
The multi-component and single-phase high entropy alloy which is expected to be a high temperature struc-tural material in AlSiTiCrMnFeNi alloy system was developed by trial and error method,and properties were deter-mined by DSC and hardness test.A hexahydric single-phase high-entropy alloy with HCP structure was discovered,of which the composition is Si19.8Ti26.4Cr10.1Mn13.3Fe18.6Ni11.8,and the hardness value is as high as 963.6 HV.The alloy does not undergo phase transition at temperature below 1 400 ℃,indicating a stable phase structure,leading to excel-lent hardness and thermal stability.
High Entropy AlloySingle-phaseThermal StabilityHCP
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