Abstract
In order to the research of new type of coal mining machine cut-off tooth material, the CrFeNbTiMo high entropy alloy (RHEA) are studied and prepared. The microstructure is composed of BCC/B2 solid solution matrix phase and Laves phase. The alloy has a high strength of 785.26 MPa and a high hardness of 931 HV. In addition, the alloy also exhibits better ductility and strength under a split Hopkinson rod. The high strength and hardness of CrFeNbTiMo provides a new option for coal mining cut-off teeth.
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