1. Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083,China 2. School of Materials Science and Engineering, Xi��an University of Technology, Xi��an 710048, Shaanxi,China 3. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing,Beijing 100083, China
Effect of Warm Rolling on Micro-deformation Behavior and Mechanical Properties of Columnar-grained Fe-6.5 mass%Si Alloy
1. Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083,China 2. School of Materials Science and Engineering, Xi��an University of Technology, Xi��an 710048, Shaanxi,China 3. State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing,Beijing 100083, China
ժҪ Micro-deformation behavior and mechanical properties of columnar-grained Fe-6.5 mass%Si alloy before and after warm rolling were investigated by means of micro-indentation and three-point bending tests. The results show that the columnar-grained Fe-6.5 mass%Si alloy before warm rolling presents sink-in mode of micro-indentation, while pile-up mode with a number of arc-shaped deformation bands exists in the warm-rolled alloy. Compared with that of the alloy before warm rolling, the maximum bending fracture stress and maximum bending fracture deflection of the warm-rolled alloy are increased by 96% and 50%, respectively. The different micro-deformation behavior and mechanical properties of the columnar-grained Fe-6.5 mass%Si alloy are ascribed to the changes of dislocation density, dislocation configuration and long-range order degree, which significantly improve the room temperature plasticity of the alloy after warm rolling.
Abstract��Micro-deformation behavior and mechanical properties of columnar-grained Fe-6.5 mass%Si alloy before and after warm rolling were investigated by means of micro-indentation and three-point bending tests. The results show that the columnar-grained Fe-6.5 mass%Si alloy before warm rolling presents sink-in mode of micro-indentation, while pile-up mode with a number of arc-shaped deformation bands exists in the warm-rolled alloy. Compared with that of the alloy before warm rolling, the maximum bending fracture stress and maximum bending fracture deflection of the warm-rolled alloy are increased by 96% and 50%, respectively. The different micro-deformation behavior and mechanical properties of the columnar-grained Fe-6.5 mass%Si alloy are ascribed to the changes of dislocation density, dislocation configuration and long-range order degree, which significantly improve the room temperature plasticity of the alloy after warm rolling.
��������:Major States Basic Research Development Program of China;National High-tech R&D Program of China;National Natural Science Foundation of China;Fundamental Research Funds for the Central Universities;State Key Lab of Advanced Metals and Materials Foundation;State Key Lab of Advanced Metals and Materials Foundation
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Hua-dong FU,Yuan-ke MO,Long-chao ZHUO,Zhi-hao ZHANG,Jian-xin XIE,. Effect of Warm Rolling on Micro-deformation Behavior and Mechanical Properties of Columnar-grained Fe-6.5 mass%Si Alloy[J]. �й������ڿ���, 2016, 23(3): 225-230.
Hua-dong FU,Yuan-ke MO,Long-chao ZHUO,Zhi-hao ZHANG,Jian-xin XIE,. Effect of Warm Rolling on Micro-deformation Behavior and Mechanical Properties of Columnar-grained Fe-6.5 mass%Si Alloy. Chinese Journal of Iron and Steel, 2016, 23(3): 225-230.
2016, Vol. 23 
