Effect of Annealing Time on Properties of Cr/NbCr2 Alloy

Li Ping Deng; Shi Qiang Lu; Xuan Xiao; Ke Lu Wang

doi:10.4028/www.scientific.net/AMR.1089.65

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1089Effect of Annealing Time on Properties of Cr/NbCr2...

Effect of Annealing Time on Properties of Cr/NbCr₂ Alloy

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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Periodical:

Advanced Materials Research (Volume 1089)

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65-69

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https://doi.org/10.4028/www.scientific.net/AMR.1089.65

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Online since:

January 2015

Authors:

Li Ping Deng, Shi Qiang Lu*, Xuan Xiao, Ke Lu Wang

Keywords:

Annealing Time, Cr/NbCr₂ Alloy, Properties

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