Material Characteristics of Plastic Deformation in High-Strength Steel

Authors

  • Tomáš Binar University of Defence, Brno, Czech Republic
  • Ivan Dvořák University of Defence, Brno, Czech Republic
  • Jaromír Kadlec University of Defence, Brno, Czech Republic
  • Jiří Sukáč University of Defence, Brno, Czech Republic
  • S. Rolc Military Research Institute, Brno, Czech Republic
  • J. Křesťan Military Research Institute, Brno, Czech Republic

Keywords:

high-strength low-alloy steel, proof stress, strain hardening exponent, fractographic analysis, transcrystalline ductile failure

Abstract

The paper is concerned with material characteristics of plastic deformation, relating to the occurrence and development of plastic deformation, proof stress and strain hardening exponent with changing testing temperature, in high-strength low-alloy steels. The material characteristics of plastic deformation were measured experimentally by means of a tensile test in the temperature range from –80 °C to +100 °C; subsequently, a fractographic analysis of fracture surfaces was carried out in order to evaluate failure mechanisms of the steels studied.

Author Biographies

  • Tomáš Binar, University of Defence, Brno, Czech Republic
    Odborný asistent na katedře logistiky
  • Ivan Dvořák, University of Defence, Brno, Czech Republic

    Emeritní profesor,

    Odbor strojního inženýrství

  • Jaromír Kadlec, University of Defence, Brno, Czech Republic

    Profesor,

    Odbor strojního inženýrství

  • Jiří Sukáč, University of Defence, Brno, Czech Republic
    Odborný asistent na katedře logistiky

References

ISO 6892-1:2009 Metallic Materials – Tensile Testing – Part 1: Method of Test at Room Temperature.

ISO 6892-2:2011 Metallic Materials – Tensile Testing – Part 2: Method of Test at Elevated Temperature.

ISO 10275:2007 Metallic Materials – Sheet and Strip – Determination of Tensile Strain Hardening Exponent.

ZAKI FARAHAT, AI., EL-BITAR, T. and EL-SHENAWY, E. Austenitic stainless steel bearing Nb compositional and plastic deformation effects. Mater. Sci. Eng. A., 2008, vol. 492, no. 1-2, p. 161-167.

SURESH, MR. et al. Study of welding characteristics of 0.3C-CrMoV(ESR) ultrahigh strength steel. J. Mater. Sci., 2007, vol. 42, no. 14, p. 5602-5612.

MIAO C. et. al. Effect of Strain Rate on the Deformation-Induced Martensite Transformation and Mechanical Behavior of Austenitic Stainless Steel for Cold Stretched Pressure Vessels. In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference, vol. 1, p. 737-742. ISBN 978-0-7918-4920-0.

KOHOUT, J. and HRUBÝ, V. Mutual reciprocal interconnection of relations describing creep, yield stress and stress relaxation. Komunikácie (Communications), 2010, no. 4, p. 40-44. ISSN 1335-4205.

MA, L. et. al. Nonlinear Analysis of Pressure Strengthening for Austenitic Stainless Steel Pressure Vessel. In ASME 2008 Pressure Vessels and Piping Conference, vol. 3 (Design and Analysis), p. 493-498. ISBN 978-0-7918-4826-5.

DYJA, D., STRADOMSKI, Z. and PIREK, A. Microstructural and Fracture Analysis of Aged Cast Duplex Steel. Strength of Materials, 2008, vol. 40, no. 1, p. 122-125.

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Published

25-01-2015

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Section

Research Paper

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How to Cite

Material Characteristics of Plastic Deformation in High-Strength Steel. (2015). Advances in Military Technology, 9(2), 33-39. https://www.aimt.cz/index.php/aimt/article/view/1035

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