Static Aging Behavior of Microalloyed Wire Steel and Carbon Wire Steel

Abstract:

The reinforcing wire production CA-60 is highly relevant due to its wide application in concrete products (welded wire mesh and truss girder), driven by growing demand for products of the construction area. One of the properties required by ABNT / NBR 7480/07 is the yield stress (σ_e), which has a direct effect on the maximum load that the structural component may be subjected in service. The addition of steel wire temperature during cold rolling increases the σ_e and reduces the ductility due to the aging phenomenon. These variations occur due to the formation of solute atoms atmosphere around the dislocations. The purpose of this paper is to study the behavior of σ_e during heat treatment of static aging at 100 °C in the wire CA-60 steel made from the niobium microalloyed steel equivalent ASTM A913 and the equivalent ASTM 1013 steel. As a result the wire carbon steel 1013 showed the same variation of σ_e during static aging of niobium microalloyed steel A913. This phenomenon was justified because of the increased level of pro-eutectoid ferrite and grain size in the carbon steel 1013.

• Periodical: Materials Science Forum (Volume 869)
• Pages: 435-440
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.869.435
• Online since: August 2016
• Authors: Felipe Farage David, Sayd Farage David, Lucas Lira Silveira, Ricardo Arthur Sanguinetti Ferreira
• Keywords: Microalloyed Steel, Plastic Deformation, Static Aging, Wire CA-60 Steel

References

[1] F.F. David, P.F.F. Almeida, L.S. Fernandes: Análise da variabilidade da massa linear ao longo da produção de fios CA-60 em laminadores a frio. Seminário de Trefilação da ABM, pp.50-59, 26 Nov (2013).

DOI: 10.5151/2594-3650-27173

[2] A.H. Cottrell, B. Bilby: Proceedings of the Phisical Society A Vol. 62 (1949), p.49.

[3] B. Golis, J. W. Palarczyk, H. Dyja, Z. Muskalski e Z. Blazejowski, Investigations of the aging process of high carbon steel spring wires, Wire & Cable techinical symposium at Wai, s74th Annual convention, Jun 2004 pp.50-61.

[4] E. V. Pereloma, V. Bata, R. I. Scott, R. M. Smith: Materials Science Engineering A Vol. 527 (2010), p.2538.

[5] W. Zhao, M. Chen, S. Chen, Q. Jinbo: Science and Engineering A Vol. 550 (2012), p.418.

[6] M.P. Staiger, A. Brownrigg, P.D. Hodgson, C.H.J. Davies: Science and Engineering A Vol. 364 (2004), p.355.

[7] B. Yalamanchili, P. M. Power e D. Lanhan: A Technical Review of Industrial Practices for Decreasing the Strain Hardening Rate of Low Carbon Steel Wire. Wire & Cable techinical symposium at Wai's74th Annual convention Jun 2004 pp.50-61.

[8] R. Glodowski, Nitrogen Strain Aging in Ferritic Steels. Wire & Cable techinical symposium at Wai's74th Annual convention, pp.50-61, jun (2004).