The effect of different Ti content on microstructure and mechanical properties of TixZrNbMoV(x=0,0.5,1.0,1.5,2.0)refractory high entropy alloys was studied by X-ray diffraction,scanning electron microscope and universal testing machine.The results show that the addition of appropriate amount of Ti can effectively restrain the generation of precipitated phase and change the microstructure of the alloy.Although the strength of the alloy decreases with the addition of Ti,the elongation of the alloy is greatly improved.When x=1.5,Ti1.5 ZrNbMoV alloy shows excellent mechanical properties,with yield strength being 1451 MPa and elongation 26.5%.The addition of Ti produces the effect of precipitation strengthening and solid solution strengthening in alloy.
关键词
Ti含量/难熔高熵合金/微观组织/力学性能/试验研究
Key words
Ti content/refractory high entropy alloys/microstructure/mechanical properties/experimental research
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