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Proceedings of the 2014 International Conference on Mechatronics, Control and Electronic Engineering

Research on Cracking Sensitivity of Weathering Steel SMA490BW

Authors
Xiangyang Wu, Zhiyi Zhang, Wen Li, Yongjing Wang, Yue Liu
Corresponding Author
Xiangyang Wu
Available Online March 2014.
DOI
https://doi.org/10.2991/mce-14.2014.86How to use a DOI?
Keywords
SMA490BW;Three-point bending test; Fracture morphology; Fracture toughness Kc; cracking sensitivity
Abstract
SMA490BW is used specifically for the manufacture of welded frame of high-speed EMU bogies. Bogie is one of a very important bearer units and transmission units during driving while bogie frame is one of the most important bearer units and transmission units in bogie, directly related to safety during driving. So it’s necessary to study on the cracking sensitivity of the materials. Fracture toughness is the basic data in researching the cracking sensitivity of materials in fracture mechanics. This article employs three-point bending test method to test the fracture toughness Kc of weathering steel SMA490BW in plane stress state. Observe the microstructure of SMA490BW by Metallurgical microscope and scan the fracture morphology of the three-point bending specimens by SEM. The results show that for 12mm thick metal, the fracture toughness Kc of SMA490BW is KC=2504.66MPa·mm1/2.The microstructure is small ferrite and strip pearlite. In addition, the fracture of the three-point bending specimen is flat, and the brittle fracture zone is of uniform micro granular. It is a pure plane strain brittle fracture.
Open Access
This is an open access article distributed under the CC BY-NC license.

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Proceedings
2014 International Conference on Mechatronics, Control and Electronic Engineering (MCE-14)
Part of series
Advances in Intelligent Systems Research
Publication Date
March 2014
ISBN
978-94-62520-31-8
ISSN
1951-6851
DOI
https://doi.org/10.2991/mce-14.2014.86How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Xiangyang Wu
AU  - Zhiyi Zhang
AU  - Wen Li
AU  - Yongjing Wang
AU  - Yue Liu
PY  - 2014/03
DA  - 2014/03
TI  - Research on Cracking Sensitivity of Weathering Steel SMA490BW
BT  - 2014 International Conference on Mechatronics, Control and Electronic Engineering (MCE-14)
PB  - Atlantis Press
SP  - 388
EP  - 391
SN  - 1951-6851
UR  - https://doi.org/10.2991/mce-14.2014.86
DO  - https://doi.org/10.2991/mce-14.2014.86
ID  - Wu2014/03
ER  -