Deformation Behavior of Polycrystalline Fe-Ga-B Alloy at Elevated Temperature

Abstract:

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In this work, the hot deformation behavior of Fe83Ga17 alloy with 1.0 at.% B addition was investigated by plane strain compression tests on a Gleeble-1500 hot simulation test machine in the deformation temperature range of 350 to 900 °C. The effects of strain rate range 0.1-10 s-1 on flow stress and microstructure were also studied. It was indicated that as the temperature increases, significant softening of the material occurred, and significant dynamic recovery at low strain rate (0.1 s-1) and recrystallization at high strain rate (10 s-1) occurred during deformation at 900 °C. The results also suggested that deformation mechanism under low temperature (~500°C) was twinning. The hot deformation activation energy (Q) of the Fe83Ga17 with 1.0 at.%B alloy was calculated to be 295.3 kJ/mol.

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Periodical:

Edited by:

Chengming Li, Chengbao Jiang, Zhiyong Zhong and Yichun Zhou

Pages:

467-473

DOI:

10.4028/www.scientific.net/MSF.687.467

Citation:

J. H. Li et al., "Deformation Behavior of Polycrystalline Fe-Ga-B Alloy at Elevated Temperature", Materials Science Forum, Vol. 687, pp. 467-473, 2011

Online since:

June 2011

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$35.00

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