首页|Impact Properties of TiC/Fe at Elevated Temperatures
Impact Properties of TiC/Fe at Elevated Temperatures
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NETL
NSTL
Trans Tech Publications Ltd
The impact properties of TiC-Fe composite at different temperatures prepared by SHS / PHIP technique were investigated by impact test which was conducted in air from 20℃ to 100020℃. Morphology of the impact fracture surface was observed by scanning electron microscope (SEM) and phase composition before and after the impact test was analyzed with X-Ray Diffraction. The results indicate that the impact toughness of TiC-Fe composite increases significantly with the temperature increasing above 700℃, representing a minimum value at 700℃. The impact fracture of TiC-Fe composite at room temperature, 700℃, 900℃ and 1000℃ is mainly brittle, showing certain plasticity with morphology of dimples as the temperature increases above 700℃. A small amount of Fe_2O_3 exists in the fracture surface, indicating TiC-Fe composite is oxidized partially during the impact test at elevated temperatures.
Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China Electric Power University, Beijing 102206, China
NETL
NSTL
Trans Tech Publications Ltd
