Abstract
Cr/NbCr2 alloy containing with 91at.%Cr and 9at.% Nb was prepared by mechanical alloying and hot pressing .Then it was annealing at 1200°C for10h, 30h,50h,100h ,respectively in vacuum condition. The results show that the relative density of Cr/NbCr2 alloy increases slightly with the annealing time. Meanwhile, Vickers hardness of Cr/NbCr2 alloy decreases with the annealing time. After annealing at 1200 °C for 100 h, the relative density and Vickers hardness of Cr/NbCr2 alloy vary from 98.9% to 99.7% and 5.6 GPa to 3.78 GPa, respectively. Due to the good plasticity of chromium solid solution, obvious plastic deformation appears during room temperature compression tests. After annealing at 1200°C for 10h, the compression properties of Cr/NbCr2 alloy, such as compressive strength, yield strength and strain, get the maximum value.
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