Deformation behavior of polycrystalline Fe-Ga-B alloy at elevated temperature
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℃. 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℃. The results also suggested that deformation mechanism under low temperature (~500℃) 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.
Fe-Ga alloy compression deformation mechanism dynamic recovery dynamic recrystallization
Jiheng Li Xuexu Gao Jie Zhu Xiaoqian Bao Maocai Zhang
State Key Laboratory for Advanced Metals and Materials, University of Science and TechnologyBeijing, State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
467-473
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）