Impact Properties of TiC/Fe at Elevated Temperatures

Abstract:

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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°C to 100020°C. 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°C, representing a minimum value at 700°C. The impact fracture of TiC-Fe composite at room temperature, 700°C, 900°C and 1000°C is mainly brittle, showing certain plasticity with morphology of dimples as the temperature increases above 700°C. A small amount of Fe2O3 exists in the fracture surface, indicating TiC-Fe composite is oxidized partially during the impact test at elevated temperatures.

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Edited by:

Wei Pan and Jianghong Gong

Pages:

113-115

DOI:

10.4028/www.scientific.net/KEM.434-435.113

Citation:

Y. R. Bao et al., "Impact Properties of TiC/Fe at Elevated Temperatures", Key Engineering Materials, Vols. 434-435, pp. 113-115, 2010

Online since:

March 2010

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Price:

$35.00

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