Autors: Tsonev, V. C.
Title: TENSILE TESTING OF 1.4859 STEEL AT HIGH TEMPERATURES
Keywords: high temperatures, proof strength, tensile strength, tensile testing

Abstract: The article develops a method for tensile testing at high temperatures. The longitudinal deformation of the coupon is measured using the stepper motor of the testing machine. It is shown how a ratio is obtained between the number of steps performed by the stepper motor and the travel of the movable disk of the machine. The coupons were subjected to pure tension. The tests were performed at room temperature and at temperatures of 700, 800, 900 and 1000 °C. The proof strength and tensile strength of 1.4859 steel were determined. The obtained results were evaluated.

References

  1. B. DOCHEV, I. PANOV, V. TSONEV, D. DIMOVA: Determination of the Tensile Strength at High Temperatures of Non-Standard Piston Hypereutectic Aluminium-Silicon AlloYS. J Balk Tribol Assoc, 27 (6), 1069 (2021).
  2. B. DOCHEV, I. PANOV, V. TSONEV, D. DIMOVA: Study of the Behaviour of Alumini-um-Silicon Alloys Interfused with Cu and Mg at High Temperatures. J Balk Tribol Assoc, 27 (6), 1077 (2021).
  3. G. SUDARSHAN RAO, K. SARAVANAN, G. HARIKRISHNAN, V. M. J. SHARMA, P. RAMESH NARAYANAN, K. SREEKUMAR, P. P. SINHA: Local Deformation Behavior of Inconel 718 TIG Weldment at Room Temperature and at 550 C. In Materials Science Forum, 710, 439, Trans Tech Publications Ltd. (2012).
  4. M. EKSTRÖM, S. JONSSON: High-temperature Mechanical-and Fatigue Properties of Cast Alloys Intended for Use in Exhaust Manifolds. Materials Science and Engineering: A, 616, 78 (2014).
  5. W. WANG, Y. ZHANG, L. XU, X. LI: Mechanical Properties of High-strength Q960 Steel at Elevated Temperature. Fire Safety Journal, 114, 103010 (2020).
  6. D. HARSHINI, A. UL HAQ, T. BUDDI, K. A. KUMAR, A. A. LAKSHMI: Comparative Study on Mechanical Behavior of ASS 316L for Low and High Temperature Applications. Materials Today: Proceedings, 19, 767 (2019).
  7. X. YAN, Y. XIA, H. B. BLUM, T. GERNAY: Elevated Temperature Material Properties of Advanced High Strength Steel Alloys. Journal of Constructional Steel Research, 174, 106299 (2020).
  8. W. Y. WANG, B. LIU, V. KODUR: Effect of Temperature on Strength and Elastic Modulus of High-strength Steel. Journal of Materials in Civil Engineering, 25 (2), 174 (2013).
  9. V. TSONEV, N. KUZMANOV: Design, Machining and Calibration of a Strain Gauge Load-cell. In AIP Conference Proceedings, 2449 (1), AIP Publishing (2022).
  10. A. HEIDARPOUR, N. S. TOFTS, A. H. KORAYEM, X. L. ZHAO, C. R. HUTCHINSON: Mechanical Properties of Very High Strength Steel at Elevated Temperatures. Fire safety jour-nal, 64, 27 (2014).
  11. J. A. GALES, L. A. BISBY, T. STRATFORD: New Parameters to Describe High-temperature Deformation of Prestressing Steel Determined Using Digital Image Correlation. Structural Engineering International, 22 (4), 476 (2012).
  12. R. VÖLKL, B. FISCHER, M. BESCHLIESSER, U. GLATZEL: Evaluating Strength at Ultra-high Temperatures – Methods and Results. Materials Science and Engineering: A, 483, 587 (2008).
  13. V. TSONEV, B. BORISOV, I. MUHTAROV, N. KUZMANOV: Testing Machine for Experimental Investigation in High Temperature Conditions. Proceedings of BulTrans-2017, Sozo-pol, Bulgaria, 64 (2017).
  14. N. NIKOLOV, V. TSONEV, L. LAZOV, V. GEORGIEV: Design of a Heating Device for Long Material Testing at High Temperature. In International Scientific Conference of the Faculty of Machine and Power Engineering, 1 (17), 187 (2009).
  15. N. NIKOLOV, V. TSONEV, L. LAZOV: Controlling of Stand for Materials Testing at High Temperatures. Proceedings of AMO, 315 (2010).
  16. EN ISO 6892-2: Metallic materials – Tensile Testing, Part 2 – Method of Test at Elevated Temperature (2018).

Issue

Journal of the Balkan Tribological Association, vol. 31, pp. 720-728, 2025, Albania, ISSN 13104772

Вид: статия в списание, публикация в реферирано издание, индексирана в Scopus