Effect of Nanophase on the Nucleation of Intragranular Ferrite in Microalloyed Steel |
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| Authors: | LI Xincheng WANG Xinyu FENG Xiaotian |
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| Affiliation: | LI Xincheng1,WANG Xinyu2,FENG Xiaotian1 (1. Advanced Forming Technology Institute,Jiangsu University,Zhenjiang 212013,China,2. School of Material Science , Engineering,China) |
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| Abstract: | MnS, MnS+V(C, N) complex precipitates in micro-alloyed ultra-fine grained steels were precisely analyzed to investigate the grain refining mechanism. The experimental results shows that MnS, MnS+V(C, N) precipitates provide nucleation center for Intra-granular ferrite (IGF), so that refined grain remarkably. Moreover, substructures such as grain boundary, sub-boundary, distortion band, dislocation and dislocation cell in austenite increased as the deformation energy led by heavy deformation at low temperatu... |
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| Keywords: | intra-granular ferrite (IGF) vanadium MnS nanophase substructure |
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