Skip to main content
SpringerLink
Log in

Influence of the Mechanical and Corrosion Defects on the Strength of Thermally Hardened Reinforcement of 35GS Steel

  • Published:
Materials Science Aims and scope

We study the influence of the shape and sizes of defects on the strength of thermally hardened steel reinforcement and construct the stress-strain diagrams for reinforcements with different types of defects. For the first time, the method of binarization of images is used for the evaluation of the areas of fracture surfaces of samples with an aim to establish true critical stresses. It is shown that isolated sharp defects are more dangerous than a system of defects of this kind or long isolated corrosion defects. We also demonstrate the advantage of application of true stresses for the evaluation of strength of the reinforcement.

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

Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.

Similar content being viewed by others

References

  1. GOST 1497-84. Metals. Methods of Tensile Testing [in Russian], Introduced 01.01.86.

  2. R. J. Kosarevych, B. P. Rusyn, V. V. Korniy, and T. I. Kerod, “Image segmentation based on the evaluation of the tendency of image elements to form clusters with the help of point field characteristics,” Cybernet. Syst. Anal., 51, No. 5, 704–713 (2015).

    Article  Google Scholar 

  3. R. Y. Kosarevych, O. Z. Student, L. M. Svirska, B. P. Rusyn, and H. M. Nykyforchyn, “Computer analysis of the characteristic elements of fractographic images,” Fiz.-Khim. Mekh. Mater., 48, No. 4, 53–60 (2012); English translation: Mater. Sci., 48, No. 4, 474–481 (2013).

  4. S. Beucher and C. Lantuejoul, “Use of watersheds in contour detection,” in: International Workshop on Image Processing, Real-Time Edge and Motion Detection/Estimation, Rennes (1979), pp. 1–12.

  5. R. Barnes, C. Lehman, and D. Mulla, “Priority-flood: an optimal depression-filling and watershed-labeling algorithm for digital elevation models,” Comput. Geosci., 62, 117–127 (2014).

    Article  Google Scholar 

  6. H. Steinhaus, “Sur la division des corps materiels en parties,” Bull. Acad. Polon. Sci., 4, No. 12, 801–804 (1956).

    Google Scholar 

  7. G. Sapiro, R. Kimmel, D. Shaked, B. Kimia, and A. M. Bruckstein, “Implementing continuous-scale morphology via curve evolution,” Pattern Recognit., 26, No. 9, 1363–1372 (1993).

    Article  Google Scholar 

  8. S. Suzuki and K. Abe, “Topological structural analysis of digitized binary images by border following,” Comp. Vis. Graph. Image Process., 30, No. 1, 32–46 (1985).

    Article  Google Scholar 

  9. Q. Zhang, Yu. V. Mol’kov, Yu. М. Sobko, and Ya. Z. Blikhars’kyi, “Determination of the mechanical characteristics and specific fracture energy of thermally hardened reinforcement,” Fiz.-Khim. Mekh. Mater., 50, No. 6, 50–54 (2014); English translation: Mater. Sci., 50, No. 6, 824–829 (2015).

  10. M. B. Civelek and F. Erdogan, “Crack problems for a rectangular plate and an infinite strip,” Int. J. Fract., 19, No. 2, 139–159 (1982).

    Article  Google Scholar 

  11. M. Isida, “Effect of width and length on stress intensity factors of internally cracked plates under various boundary conditions,” Int. J. Fract. Mech., 7, No. 3, 301–316 (1971).

    Article  Google Scholar 

  12. Yu. Du, Yu. V. Mol’kov, Т. М. Lenkovs’kyi, and R. А. Koval’chuk, “Analysis of the stress-strain state of the process zone of a plate with central crack under biaxial loading,” Fiz.-Khim. Mekh. Mater., 53, No. 1, 78–83 (2017); English translation: Mater. Sci., 53, No. 1, 86–92 (2017).

  13. Ya. L. Ivanyts’kyi, O. V. Hembara, and O. Ya. Chepil’, “Determination of the durability of elements of power-generating equipment with regard for the influence of working media,” Fiz.-Khim. Mekh. Mater., 51, No. 1, 93–101 (2015); English translation: Mater. Sci., 51, No. 1, 104–113 (2015).

Download references

Author information

Authors and Affiliations

  1. “L’vivs’ka Politekhnika” National University, Lviv, Ukraine

    Z. Ya. Blikhars’kyi

  2. Karpenko Physicomechanical Institute, Ukrainian National Academy of Sciences, Lviv, Ukraine

    Yu. V. Obukh

Authors
  1. Z. Ya. Blikhars’kyi
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Yu. V. Obukh
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Z. Ya. Blikhars’kyi.

Additional information

Translated from Fizyko-Khimichna Mekhanika Materialiv, Vol. 54, No. 2, pp. 128–133, March–April, 2018.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Blikhars’kyi, Z.Y., Obukh, Y.V. Influence of the Mechanical and Corrosion Defects on the Strength of Thermally Hardened Reinforcement of 35GS Steel. Mater Sci 54, 273–278 (2018). https://doi.org/10.1007/s11003-018-0183-2

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11003-018-0183-2

Keywords

Search

Navigation