7th International Conference on High Strength Low Alloy Steels (HSLA Steels 2015), International Conference on Microalloying 2015 (Microalloying 2015) and International Conference on Offshore Engineering Steels 2015 (OES 2015) Hanghou, China 11 - 13 November 2015 Volume 1 of 2 ISBN: 978-1-5108-2440-9 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 Some format issues inherent in the e-media version may also appear in this print version. Copyright© (2015) by the Minerals, Metals & Materials Society All rights reserved. Printed by Curran Associates, Inc. (2016) For permission requests, please contact John Wiley & Sons at the address below. John Wiley & Sons 111 River Street Hoboken, NJ 07030-5774 Phone: (201) 748-6000 Fax: (201) 748-6088 [email protected] Additional copies of this publication are available from: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 USA Phone: 845-758-0400 Fax: 845-758-2633 Email: [email protected] Web: www.proceedings.com TABLE OF CONTENTS Preface ....................................................................................................................................................................xv Acknowledgements ..............................................................................................................................................xvii Plenary Session New Development of HSLA Steels in China ............................................................................................................3 Xiao-gang ZHANG, Cai-fu YANG, and Cheng-jia SHANG Microalloyed Steels: Past, Present and Future ........................................................................................................17 Anthony J. DeArdo Niobium in Microalloyed Rail Steels .....................................................................................................................33 A. Ray and H.K.D.H. Bhadeshia Niobium Solar Mobile Project – High Strength Niobium Microalloyed Steel as a Solution to Improve Electric Super Scooter and Motorcycle Performance .....................................................41 Terry Richards, Erik Kauppi, Lauren Flanagan, Eduardo A.A.G. Ribeio, Marcos A. Stuart Nogueira, and Ian McCourtney Evolution of Microalloyed Steels Since Microalloying ’75 with Specific Emphasis on Linepipe and Plate .............................................................................................................................53 J. Malcolm Gray and F. Barbaro Modern Niobium Microalloyed Steels for the Automotive Industry ......................................................................71 Debanshu Bhattacharya Design of Reforma 509 with High Strength Steel ..................................................................................................85 Stuart Smith, William Whitby, and Marc Easton Microalloyed Engineering Steels with Improved Performance ..............................................................................97 Wolfgang Bleck, Margarita Bambach, and Vera Wirths Weldability of HSLA Steels in Relation to Appropriate Toughness Requirements for Use in Safe and Economic Steel Construction ................................................................................................109 P. Langenberg, S. Münstermann, M. Feldmann, and U. Reisgen Technical Requirements for the Development of Marine Steel in China .............................................................121 Hang SU, Tao PAN, Feng CHAI, and Caifu YANG Physical Metallurgy Effect of Nitrogen on Transformation Behaviors and Microstructure of V-N Microalloyed Steel .......................135 Zhao Baochun, Zhao Tan, Li Guiyan, and Lu Qiang Quantifying the Effect of Nb and Mo on Transformation Products Using Advanced EBSD Analysis ................143 Jennifer M. Reichert and Matthias Militzer Decomposition of Supercooled Austenite in Continuous Cooling Transformation Process of a Mn-Mo-Ni Low Alloy Steel .............................................................................................................151 C.W. Li, L.Z. Han, Q.D. Liu, X.G. Tao, J.F. Gu, and W.M. Zhang Effect of High Magnetic Field on the Pearlite Transformation of Hypoeutectoid Steel .......................................159 Li Jing and Zhang Guohong v Study of Chemical Composition and Thermal Stability of Reverted Austenite in QLT-Treated 9%Ni Steel ...................................................................................................................................165 Pan Tao, Yang Caifu, and Su Hang Thermodynamic Calculations and Precipitation Simulations of HSLA Steels ....................................................173 Shan Jin, Qing Chen, and Johan Bratberg Determination of Dynamic Recrystallization Process by Equivalent Strain ........................................................179 Xiaomei Qin and Wei Deng High-Strength Low-Alloy Steel Strengthened by Multiply Nanoscale Microstructures ......................................187 Y.F. Shen and L. Zuo Grain Refinement and Toughening of Low Carbon Low Alloy Martensitic Steel with Yield Strength 900 MPa Grade by Ausforming ....................................................................................................195 Zhaodong Li, Xinjun Sun, Zhigang Yang, and Qilong Yong Effect of Mo Addition on the Precipitation Behavior of Carbide in Nb-Bearing HSLA Steel .............................203 Zhengyan Zhang, Qilong Yong, Xinjun Sun, Zhaodong Li, Zhengqiang Wang, Shitong Zhou, and Guodong Wang Application of Nano-Scale Precipitate Engineering of TiN-NbC Composite in 32mm K60-E2 Grade Plate Rolling ...............................................................................................................................................211 S.V. Subramanian, Ma Xiaoping, Nie Wenjin and Zhang Xiaobing Precipitation Behavior of Nanometer-Sized Carbides in a Nb-Ti-Bearing Low-Carbon Steel ............................223 Li Xiaolin, Wang Zhaodong, Deng Xiangtao, Yang Yong, Song Dan, and Wang Guodong Measurement Uncertainty of Mechanical Property in Tensile Tests: Strain Rate Embrittlement of HSLA Steels ..........................................................................................................................................................229 Tingdong Xu, Chong Shao and Kai Wang The Influence of Mo, Cr and B Alloying on Phase Transformation and Mechanical Properties in Nb Added High Strength Dual Phase Steels .....................................................................................................237 O. Girina, N. Fonstein, O. Yakubovsky, D. Panahi, D. Bhattacharya, and S. Jansto The Influence of Carbon Content and Cooling Rate on the Toughness of Mn-Mo-Ni Low-Alloy Steels............247 Huibin Liu and Hanqian Zhang Comparative Analysis of Precipitation Effects in Microalloyed Austenite and Ferrite Under Hot and Cold Forming Conditions .....................................................................................................................................253 Krzysztof Muszka, Marcin Kwiecien, Janusz Majta, and Eric J. Palmiere Niobium-Based Alloy Design for Structural Applications: Processing-Structure-Property Paradigm .................261 Devesh Misra Influence of Micro-Texture on Delamination of Hot-Rolled High Strength Low Alloyed Steel Sheets ..............267 Sungil Kim, Shi-Hoon Choi, Sung-Hwan Kim, Seok-Jong Seo and In-Shik Suh Effect of Initial Microstructure on the Mechanical Properties of an Intercritically Quenched and Tempered HB400 Grade Heavy Plate ............................................................................................................273 Zhen Fan, Qu Jinbo, Zhang Kuan, and Qiao Kun Thermomechanical Processing of Structural Steels with Dilute Niobium Additions ...........................................281 Z. Cui, J. Patel, and E.J. Palmiere Application of In-Situ Material Characterization Methods to Describe Role of Mo During Processing of V-Bearing Micro-Alloyed Steels ......................................................................................................................289 Vit Janik, Sam Clark, Prakash Srirangam, Arjan Rijkenberg, and Sridhar Seetharaman vi Effect of Heating Temperature on the Growth Behavior of Austenite Grain of Titanium Micro-Alloyed Steel ..............................................................................................................................................297 Xu Luo, Yong-Lin Kang, Cai-Shui Yang, and Jun-Hong Li Process Metallurgy Through-Thickness Homogenization in Thin Slab Direct Rolling of Nb Microalloyed Steels ............................309 B. Pereda, P. Uranga, B. López, J.M. Rodriguez-Ibabe, D. Stalheim, R. Barbosa, and M.A. Rebellato Study on the Control of Cleanliness for X90 Pipeline in the Secondary Refining Process ..................................317 Ren Sheng Chu, Jin Gang Liu, and Zhan Jun Li Hot Strength during Coiling of Low C and Nb-Microalloyed Steels ...................................................................323 R. Maubane, K.M. Banks, and A.S. Tuling. Research of Helical Magnetic Field Stirrer in Bloom Continuous Casting ..........................................................329 Guo Qing-Tao, Liao Xiang-Wei, Jia Ji-Xiang, Huang Yu-Ping, Tang Xue-Feng, and Zou Huan Modelling Microstructure Evolution during Hot Rolling of HSLA Steels in a Steckel Mill ...............................335 W. Almeida, H. Rodrigues, M. Rebellato, F. Bastos, and R. Barbosa The Influence of Vanadium Microalloying