Abstract
The use of cold-formed steel structures in the construction industry has become widely popular over the past decade. This has led to the necessary understanding of the effects of cold-working process on cold-formed steel members. The manufacturing process of cold-formed steels starts with cold-rolling the hot-rolled steel sheet under a series of rollers until a thickness is achieved. The process is followed by cold-bending to create cold-formed sections with desired shapes at ambient temperature. The plastic deformation associated with the rolling and bending processes results in strain hardening of the material and this in turn affects the properties. This paper presents both microstructural and micromechanical investigations on the blank and bent areas of 3.0 mm thick C-shaped cold-formed sections. Vickers hardness tests show a hardness increase at the bent areas. The observation of the bent region using scanning electron microscopy (SEM) reveals changes in the grain structures. Additionally, electron backscatter diffraction (EBSD) measurements have been conducted for an in-depth characterization. Understanding the changes in the microstructure of the material will provide insight on the mechanical behavior of these members.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Nowak, M., Shoemaker, W.L.: Trends in Cold-Formed Steel. Insights (2012). http://www.structuremag.org/wp-content/uploads/D-InSights-Nowak-Mar121.pdf
Hancock, G.J.: Cold-Formed Steel Structures (2007)
Australian standard AS 1397: Continuous hot-dip metallic coated steel sheet and strip - coatings of zinc and zinc alloyed with aluminum and magnesium (2011)
Randle, V.: Electron backscatter diffraction: strategies for reliable data acquisition and processing (2009)
Li, H., Hsu, E., Szpunar, J., Utsunomiya, H., Sakai, T.: Deformation mechanism and texture and microstructure evolution during high speed rolling of AZ31B Mg sheets. J. Mater. Sci. 43(22), 7148–7156 (2008)
Wright, S.I., Nowell, M.M., Field, D.P.: A review of strain analysis using electron backscatter diffraction. Microsc. Microanal. 17(3), 316–329 (2011). doi:10.1017/S1431927611000055
Ruiz-Andres, M., Conde, A., de Damborenea, J., Garcia, I.: Microstructural and micromechanical effects of cold roll forming on high strength dual phase steels (2015)
Acknowledgment
The authors acknowledge the facilities and assistance of the Australian Microscopy & Microanalysis Research Facility at the Australian Centre for Microscopy & Microanalysis at the University of Sydney.
Author information
Authors and Affiliations
Corresponding authors
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2018 Springer Nature Singapore Pte Ltd.
About this paper
Cite this paper
Trinh, H.N., Proust, G., Pham, C.H. (2018). Effect of Manufacturing Process on Material Properties at the Corners of G450 Cold-Formed Steel Channel Sections. In: Tran-Nguyen, HH., Wong, H., Ragueneau, F., Ha-Minh, C. (eds) Proceedings of the 4th Congrès International de Géotechnique - Ouvrages -Structures. CIGOS 2017. Lecture Notes in Civil Engineering , vol 8. Springer, Singapore. https://doi.org/10.1007/978-981-10-6713-6_43
Download citation
DOI: https://doi.org/10.1007/978-981-10-6713-6_43
Published:
Publisher Name: Springer, Singapore
Print ISBN: 978-981-10-6712-9
Online ISBN: 978-981-10-6713-6
eBook Packages: EngineeringEngineering (R0)