Paper Title:
Effect of Rare Earth on Microstructure and Impact Toughness of Low Carbon Steel Based on Compact Strip Production Process

The effect of rare earth (RE) on microstructure and impact toughness of hot rolled low carbon structure steel based on the Compact strip production (CSP) process was investigated in this work. Scan electron microscope (SEM) were employed to characterize the microstructure and analyze the fracture surface. Moreover, hot compression experiments were also adopted on the Gleeble-1500 hot simulator as well. The results indicate that acicular ferrite and/or ultrafine ferrite morphologies can be induced when an appropriate amount of rare earth added into the low carbon steel, which possessed the satisfied strength and toughness behaviors. Compared with commercial low carbon structural steels, the additions of RE can improve dynamic recrystallization critical strain of low carbon structural steel as well. In addition, the role of RE on the formation of these acicular ferrite morphologies has been investigated.

Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
H. Y. Wang, H. P. Ren, Z. L. Jin, C. Zong, "Effect of Rare Earth on Microstructure and Impact Toughness of Low Carbon Steel Based on Compact Strip Production Process", Advanced Materials Research, Vols 189-193, pp. 1753-1756, Feb. 2011
Online since
February 2011
US$ 28,-
Authors: Hak Cheol Lee, Xiao Dan Wu, Young Min Kim, Nack J. Kim
Abstract:Effects of acicular ferrite and retained austenite on the mechanical properties of bainite-base steels were investigated. Various morphology...
Authors: Zhi Qiang Cao, Ai Bing Zhang, Deng Luo, Zheng Hai Xia, Yong Dong Zhang, Kai Ming Wu
Abstract:A ultra low carbon high strength steel heavy plate (60∼80mm thick) was produced with TMCP at Xiangtan Steel. The steel has a good...
Authors: O. Uzlov, A. Malchere, V. Bolshakov, Claude Esnouf
Abstract:Low carbon-manganese wrought steels with addition of Ti-Al-N have been treated in order to obtain acicular ferrite structure. The...
Authors: Shu Rui Li, Xue Min Wang, Chao Chao Zheng, Xin Lai He
Chapter 2: Iron and Steel
Abstract:The influence of the oxide inclusions on the microstucture, properties and the Heat-affected-zone (HAZ) toughness of low alloy steels has...
Authors: Zheng Hai Xia, Xiang Liang Wan, Xue Li Tao, Kai Ming Wu
Chapter 12: Thermal Engineering Theory and Applications
Abstract:The effect of heat input on toughness of coarse-grained heat-affected zone of an ultra low carbon acicular ferrite steel were investigated...