Hot Compression Performance of TiC10/Cu-Al₂O₃ Composite Prepared by Vacuum Hot-Pressed Sintering

Abstract:

Use VDBF-250 vacuum hot pressing sintering furnace TiC10/Cu-Al₂O₃ composite was prepared by vacuum-pressed sintering. In the cold isotatic pressing machine for sintering state sample was cold isostatic pressing and detection performance. Using the Gleeble-1500D simulator, the high-temperature plastic deformation behavior of TiC10/Cu-Al₂O₃ composite was investigated at 450850°C with the strain rate of 0.0011s¹ and total strain of 0.7 the dynamic recrystallization behavior of the composite was studied. The results show that the density, microhardness and electrical conductivity of the composite are 98.53%, 161HV and 48.7%IACS. After the isostatic cool pressing, The comprehensive performance of the material were improved. The softening mechanism of the dynamic recrystallization is a feature of high-temperature flow stressstrain curves of the composites, and the peak stress increases with the decrease of deformation temperature or the increase of strain rate, and Belong to temperature and strain rate sensitive material.

• Periodical: Advanced Materials Research (Volumes 750-752)
• Pages: 99-102
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.750-752.99
• Online since: August 2013
• Authors: Zhi Qiang Yang, Yong Liu, Bao Hong Tian, Yi Zhang
• Keywords: Flow Stress, Microstructure, TiC10/Cu-Al₂O₃ Composite, Vacuum-Pressed Sintering

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