1. Senuma T. Present Status of Future Prospects for Precipitation Research in the Steel Industry [J]. ISIJ International, 2002, 42 (1): 1212.
2. WANG Jian-ping, YANG Zhi-gang, BAI Bing-zhe, et al. Influence of Austenite Deformation on the Microstructure Strength and Toughness of the Grain Boundary Allotriomorphic Ferrite/Granular Bainite (FGBA/GB) Duplex Steel [J]. Acta Metallurgica Sinica, 2004, 14 (3): 263 (in Chinese).
3. CAO Jian-chun, LIU Qing-you, YONG Qi-long, et al. Effect of Niobium on Microstructure and Strengthening Mechanism of HSLA Steel [J]. Journal of Materials and Metallurgy, 2006, 41(8): 60.
4. HUANG Hai-bing, BAI Bing-zhe, FENG Yong, et al. Study on Deformation Induced Ferrite Transformation of the Grain Boundary Allotriomorphic Ferrite/Granular Bainite (FGBA/Bg) and Nb-Ti Microalloyed Duplex Steel [J]. Heat Treatment of Metals, 2006, S1: 124 (in Chinese).
5. Enomoto M, Norjirl V, Sato Y. Effects of Vanadium and Niobium on the Nucleation Kinetics of Preoccupied Ferrite at Austenite Grain Boundaries in Fe-C and Fe-C-Mn Alloys [J]. Mater Trans, 1994, 35(12): 859.