Research on Welding Heat Affected Zone of Pipeline Steel in High Heat Input Welding

DOI

10.2991/icmsa-15.2015.168How to use a DOI?

Keywords

Pipeline Steel, Heat Affected Zone, Strength and Toughness, High Heat Input Welding.

Abstract

In this paper, the HAZ of pipeline steel in high heat input welding is researched, including the microstructure and properties of HAZ, the embrittlement of HAZ and the existing problems and solutions of HAZ. The results show that the welding normalized zone is the best part of the HAZ. The main embrittlement mode of HAZ in the pipeline steel is the coarse grained embrittlement and the microstructure embrittlement. The theoretical research system of adding nano-oxide induced the intra-granular acicular ferrit nucleation in HAZ will be a new research direction of solving the appearing problems of pipeline steel in high heat input welding.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Jian-Ming Wang
AU  - Yan Liu
AU  - Kai Wang
AU  - Yang Liu
PY  - 2014/06
DA  - 2014/06
TI  - Research on Welding Heat Affected Zone of Pipeline Steel in High Heat Input Welding
BT  - Proceedings of the 2015 International Conference on Material Science and Applications
PB  - Atlantis Press
SP  - 906
EP  - 910
SN  - 2352-541X
UR  - https://doi.org/10.2991/icmsa-15.2015.168
DO  - 10.2991/icmsa-15.2015.168
ID  - Wang2014/06
ER  -