Skip to main content
SpringerLink
Log in

Study of aging and embrittlement of microalloyed steel bars

  • Published:
Journal of Materials Engineering and Performance Aims and scope Submit manuscript

Abstract

The aging of hooks, anchors, and other bent reinforcing steel bars in concrete structures are considered in modern international standards. Rebend test procedures have been designed in order to predict the aging embrittlement susceptibility by submerging bent reinforcing bar specimens in boiling water. Subsequently the bars are rebent or straightened in order to determine the loss of ductility or embrittlement of the aged material. The present work considers the influence of carbon, sulfur, and niobium on the performance of reinforcing bars in rebend tests of 300 heats of microalloyed steel bars with a variety of compositions. The microstructural evidence and the statistical results clearly indicate the strong influence of carbon and sulfur on rebend failure, while niobium-rich precipitates contribute to the hardening of the ferrite grains during aging.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. BS 4449: 1988—“British Standard Specification for Carbon Steel Bars for the Reinforcement of Concrete,” Committee Reference ISM/9, BSI Publications, Milton Keynes, U.K., May 1988, p 1–13

  2. Y. Maehara and T. Nagamichi,Mater. Sci. Technol., Vol 7, 1991,p 915

    CAS  Google Scholar 

  3. R. Abushosha, R. Vipond, and B. Mintz,Mater. Sci. Technol., Vol 7,1991, p 1101

    CAS  Google Scholar 

  4. E. Valdez and C.M. Sellars,Mater. Sci. Technol., Vol 7,1991, p 622

    Google Scholar 

  5. H.J. Kestenbach, J.A. Rodrigues, and J.R. Dermonde,Mater. Sci. Technol., Vol 5, 1989, p 29

    CAS  Google Scholar 

  6. Y. Maehara, K. Yasumoto, H. Tomono, T. Nagamichi, and Y. Ohmori,Mater. Sci. Technol., Vol 6,1990, p 793

    CAS  Google Scholar 

  7. T. Gladman et al., Effects of Second Phase Particles on the Mechanical Properties of Steel, The Iron and Steel Institute, London, 1971, p 68

    Google Scholar 

  8. I. Kozasu and J. Tanaka,Sulphide Inclusions in Steels, American Society for Metals, 1975, p 286

  9. D.C. Hilty and W. Crafts,Trans. AIME, Vol 188, 1950, p 414

    CAS  Google Scholar 

  10. I. Kozasu and J. Tanaka,Sulphide Inclusions in Steels, American Society for Metals, 1975

  11. I. Kozasu and H. Kubota,Trans. Iron Steel Inst. Japan, Vol 11, 1971,p 321

    CAS  Google Scholar 

  12. M. Korchynsky and H. Stuart, Low Alloy High Strength Steels,Proc. London-Scandinavian Conf., Nuremburg, 1970, p 17

  13. V. Castaño and L. Martínez,J. Mater. Res., Vol 15 (No. 3), 1990, p 658

    Google Scholar 

  14. J.D. Baird,Metall. Reviews, No. 4, London, Iliffe, 1963

    Google Scholar 

  15. F.B. Pickering and T. Gladman, Special Report 81, Iron and Steel Institute, 1963, p 10

  16. K. Hulka and F. Heisterkamp,Steel India, April 1985, p 1

  17. B. Campillo et al.J. Mater. Sci., Vol 27, 1992, p 1365–1368

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Facultad de Quimica, Universidad Nacional Autonoma de Mexico, Ciudad Universitaria, Mexico D.F

    B Campillo

  2. Instituto de Fisica, Universidad Nacional Autonoma de Mexico, P.O. Box 139B, 62191, Cuernavaca, Morelos, Mexico

    R Perez & L Martinez

Authors
  1. B Campillo
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R Perez
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. L Martinez
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Campillo, B., Perez, R. & Martinez, L. Study of aging and embrittlement of microalloyed steel bars. JMEP 5, 615–620 (1996). https://doi.org/10.1007/BF02646091

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02646091

Keywords

Search

Navigation