铌微合金化技术是低合金高强度钢生产的主要技术之一，巴西矿冶公司1979年将国际先进的Microalloy’75微合金化技术介绍到中国，40年来和中国钢铁行业密切合作，持续支持中国铌微合金化技术的普及和发展，为中国低合金高强度钢的发展和国际竞争力的提升作出了突出的贡献。为了总结四十年来我国铌微合金化技术的成就，进一步推动我国钢铁工业的高品质发展，中国中信集团有限公司和中国钢研科技集团有限公司、中国金属学会、中国钢铁工业协会、巴西矿冶公司举办了“中国-巴西铌科学与技术合作四十年国际研讨会”。会议特邀报告全面介绍了国内外铌科学与技术的最新进展，将这些整理成本论文集。

Latest Progress of Worldwide Niobium Science and Technology
Ricardo Lima
Development, Application and Prospect of Niobium Bearing Pipeline Steel in China
Wang Xiaoxiang, Fu Junyan, Shang Cheng/ia, Liu Qingyou, Zhang Yongqing
Revealing the Weldability Advantages of Modem Niobium Microalloyed Linepipe Steels
Phil Kirkwood
Main Developments in Energy Materials Technology Segment
Rogerio Pastore
Progress in the Physical Metallurgy of Niobium-containing Automotive Steels
John Speer, Emmanuel De Moor, Kip Findley, Wang Li
Development of China Automobile Microalloyed Steel in 2009-2019
Lu Jiangxin, Wang Li, Lu Hongzhou, Wang Wenjun, Chen Weijian, Zhao Zhengzhi
Development and Application of Nb-Bearing Special Steels, Including Engineered Steels
David Matloek, John Speer
Roles of Niobium in Nearly Eutectoid Steel
Yong Qilong, Zhang Zhengyan, Li Zhaodong, Cao Jianchun
Development and Application of Niobium in High Strength Anti-seismic Rebars
Cao Jianchun, Chen Wei, Zhang Weiqiang, Zhang Yongqing, Yin Shubiao, Liu Xing,
Yong Qilong, Guo Aimin
Material System and Industrial Practice of High-performance Marine Steel
Wang Hua, Shang Chengjia, Han Peng, Yan Ling
Application of Niobium Microalloying Technology in Steels for Pressure Vessels
Li Shurui, Yang Guoyi, Zhang Xiaohu, Liu Wenbin, Liu Zhongzhu, Guo Aimin
Recent Developments in Niobium Containing Stainless Steels in China
Mariana Oliveira, Tassia Moura, Zhang Wei
Development and Prospect of Niobium-containing Heat-resistant Steel Technology in China
Liu Zhengdong, Wang Jingzhong, Bao Hansheng, Chen Zhengzong, Zhang Wei
An Overview ofNb-Containing Superalloys in China
Xie Xishan
Effects of Niobium Alloying and Austempering Temperature on Microstructure,
Hardness and Impact Toughness of Austempered Ductile Iron (ADI)
Wu Jiadong, Chen Xiangru, Hardy Mohrbacher, Zhai Qijie
Niobium in Aluminium Cast Parts
Hari Babu Nadendla, Edmundo Cruz
Nanocrystalline Soft Magnetic Alloy Materials and Their Application Status and
Development Trend
Li Deren, Lu Zhichao, Wang Wenjun
Niobium for Lithium-ion Battery Technology: Anodes, Cathodes and Solid-State
Electrolytes Materials Perspective
Robson Monteiro, Luanna Parreira, Rogerio Ribas
Appendix
Appendix 1 Spectacular Moments of the International Symposium and Celebration Ceremony
Appendix 2 The Winner List of Lifetime Achievement Award for Niobium Science and Technology and Medal Presentation Ceremony
Appendix 3 The Winner List of Innovative Team Award for Niobium Science and Technology and Medal Presentation Ceremony
Appendix 4 The Winner List of Outstanding Contribution Award for Niobium Science and Technology and Medal Presentation Ceremony
Appendix 5 The Winner List of Distinguished Engineer Award for Niobium Science and Technology and Medal Presentation Ceremony
Appendix 6 A Group Photo for the International Symposium and Celebration Ceremony