Influence of Strength Match on WELDOX960 Steel Weld Microstructure

DOI

10.2991/icmra-15.2015.232How to use a DOI?

Keywords

high-strength steel; MAG welding; weld joint; microstructure

Abstract

WELDOX960, as low-alloy high-strength steel in new generation, is widely used in construction machinery and other heavy-duty field. In the paper, mixed gas shielded arc welding is adopted for multi-pass welding on low alloy high strength steel WELDOX960. Different intensity match methods are adopted for respectively preparing six groups of samples. Microstructure of weld joint is tested and analyzed after welding. The result shows that micro-structure in filling welding of six groups of samples is basically similar to cosmetic welding, which is composed of acicular ferrite and carbides. Backing weld micro-structure of samples 50-80, 50-85 and 50-90 are essentially the same. Their microstructures are basically composed of a small amount of pearlite, proeutectoid ferrite and acicular ferrite.

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  - Xiao Ding
AU  - Zhi-Ling Wang
PY  - 2015/04
DA  - 2015/04
TI  - Influence of Strength Match on WELDOX960 Steel Weld Microstructure
BT  - Proceedings of the 3rd International Conference on Mechatronics, Robotics and Automation
PB  - Atlantis Press
SP  - 1203
EP  - 1206
SN  - 2352-538X
UR  - https://doi.org/10.2991/icmra-15.2015.232
DO  - 10.2991/icmra-15.2015.232
ID  - Ding2015/04
ER  -