Hot Deformation Behavior of the 30%Mo/Cu-Al2O3 Composite Prepared by Vacuum Hot-Pressed Sintering

Yong Liu; Yong Wei Sun; Bao Hong Tian; Jiang Feng; Yi Zhang

doi:10.4028/www.scientific.net/AMM.117-119.893

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 117-119Hot Deformation Behavior of the 30%Mo/Cu-Al2O3...

Hot Deformation Behavior of the 30%Mo/Cu-Al₂O₃ Composite Prepared by Vacuum Hot-Pressed Sintering

Abstract:

Hot deformation behavior of the 30%Mo/Cu-Al₂O₃ composite was investigated by hot compression tests on Gleeble-1500D thermal simulator in the temperature ranges of 450~750°C and the strain rate ranges of 0.01~5s^-1, as the total strain is 0.7. The results show that the peak stress increases with the decreased deformation temperature or the increased strain rate. Based on the true stress-strain curves, the established constitutive equation represents the high-temperature flow behavior of the composite, and the calculated flow stresses are in good agreement with the high- temperature deformation experimental results.

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Periodical:

Applied Mechanics and Materials (Volumes 117-119)

Pages:

893-896

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.117-119.893

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Online since:

October 2011

Authors:

Yong Liu, Yong Wei Sun, Bao Hong Tian, Jiang Feng, Yi Zhang

Keywords:

30%Mo/Cu-Al₂O₃ Composite, Constitutive Equation, Flow Stress, Hot Deformation

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