Paper Title:
Influence of Volume Fraction of Bainite on Mechanical Properties of X80 Pipeline Steel with Excellent Deformability
  Abstract

The pipeline steel with excellent deformability with ferrite and bainite dual-phase microstructure are obtained by inter-critically accelerating cooling method, aiming to get good deformation capability of avoiding failure from the geological disasters such as landslides and earthquake. The influence of volume fraction of bainite on the mechanical properties of dual-phase pipeline steels was investigated by means of microscopic analysis method and mechanical properties testing. The results indicated that both yield strength and ultimate tensile strength of the steels increase almost linearly with the increasing volume fraction of bainite, while ductility, work hardening exponent and impact absorption energy decrease. When the volume fraction of bainite is about 50%, the yield strength, the yield strength/tensile strength ratio (Y/T), work hardening exponent, uniform elongation and impact absorption energy of X80 pipeline steels with excellent deformability is 665MPa, 0.8, 0.12, 8% and 245J respectively.

  Info
Periodical
Edited by
Hyungsun Kim, Jian Feng Yang, Chuleol Hee Han, Somchai Thongtem and Soo Wohn Lee
Pages
271-274
DOI
10.4028/www.scientific.net/MSF.695.271
Citation
X. Y. Zhang, H. L. Gao, X. Q. Zhang, Y. Yang, "Influence of Volume Fraction of Bainite on Mechanical Properties of X80 Pipeline Steel with Excellent Deformability", Materials Science Forum, Vol. 695, pp. 271-274, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Kang, Zhao Dong Wang, Guo Dong Wang
Abstract:To develop 590/780MPa grade low yield ratio structural steel, the effects of ultra fast cooling (UFC) new process on microstructure and...
292
Authors: Jian Kang, Guo Yuan, Zhao Dong Wang
Abstract:The new generation TMCP process based on ultra fast cooling has recently developed rapidly. In order to develop the low yield ratio...
505
Authors: Li Hui Wang, Di Tang, Hai Tao Jiang, Ji Bin Liu, Yu Chen
Chapter 3: Steel and Iron Technology
Abstract:Effects of continuous annealing process on microstructure and properties of Si based cold-rolled TRIP Steel were studied. The results show...
472
Authors: De Cheng Wan, Qing Wu Cai, Wei Yu, Xiao Lin Li, Chang Zheng Dong
Chapter 1: Metal, Alloy, Steel Manufacturing Technology and Engineering
Abstract:The variation of microstructure and their effect on the mechanical properties of heavy plate for ship hull treated by quenching in full...
59
Authors: Constantin Dulucheanu, Nicolai Bancescu, Traian Severin
Chapter 1: Processes of Metal Machining
Abstract:In this article, the authors have analysed the influence of quenching temperature (TQ) on the mechanical properties of a...
28