Home Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel
Article
Licensed
Unlicensed Requires Authentication

Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel

  • M. Tarafder EMAIL logo , Swati Dey , S. Sivaprasad , S. Tarafder and M. Nasipuri
Published/Copyright: February 1, 2022
Become an author with De Gruyter Brill
Author Information
International Journal of Materials Research
From the journal International Journal of Materials Research Volume 96 Issue 8

Abstract

In this work, stretch zone width and stretch zone depth of ductile fracture surfaces of a high-strength low-alloy steel at various prestrained conditions are computed using digital image processing techniques, where the images are taken by scanning electron microscopy. Histogram equalisation is applied on the input image for enhancement of the image quality. Various edge detection filters, such as Laplacian, Sobel, and Kirsch are separately applied to the digital image to detect the edges of the stretch-zone. The images obtained after processing are binarized through thresholding for identifying the stretch zone boundaries and to compute the stretch-zone width. It is observed that the Laplacian filter produced better results compared to the other filters. The measured values of stretch-zone width and stretch-zone depth by image analysis agreed well with those obtained manually; however they showed discrepancy with the same obtained indirectly from the fracture-resistance curve. The reasons for such a discrepancy are highlighted in this paper. From the estimated stretch-zone width, initiation fracture toughness of the HSLA steel has been obtained.

Keywords: Ductile fracture; Stretch zone; Image processing; HSLA
Ms. Mita Tarafder MMS Division National Metallurgical Laboratory Jamshedpur – 831007, India Tel.: +091-0 657 227 3038 Fax: +091-1 657 227 0527

  1. The authors acknowledge the support of the grant (No:III 5(28)/99-ET) received from the Department of Science and Technology (DST), New Delhi, India. They are thankful to Mr. B. Dash and Mr. S. K. Das for their help in image acquisition.

References

[1] O. Kolednik, H.P. Stüwe:Eng. Fract. Mech.2 (1985) 145.10.1016/0013-7944(85)90061-XSearch in Google Scholar

[2] O. Kolednik, H.P. Stüwe:Eng. Fract. Mech.2 (1986) 277.10.1016/0013-7944(86)90058-5Search in Google Scholar

[3] H.L.O. de Rogerio, J.J. Ammann, A.M.M. Nazar:Material Characterization43 (1999) 21.10.1016/S1044-5803(98)00055-2Search in Google Scholar

[4] D.T. Hoelzer, J.A. Ali, F. Ebrahimi:Scripta metall. 20 (1986) 1575.10.1016/0036-9748(86)90398-4Search in Google Scholar

[5] S.W. Yin, R.A. Gerbrs, M. Hartevelt:Eng. Fract. Mech.18 (1983) 1025.10.1016/0013-7944(83)90074-7Search in Google Scholar

[6] M.N. Bassim, J.R. Matthews, C.V. Hyatt:Eng. Fract. Mech.43 (1992) 297.10.1016/0013-7944(92)90128-2Search in Google Scholar

[7] S. Scherer, O. Kolednik:The Americas Microscopy and Analysis3 (2001) 15.Search in Google Scholar

[8] E. Roos, U. Eisele:Journal of Testing and Evaluation, JTEVA16 (1988) 1.Search in Google Scholar

[9] [E 1737–96], Standard Test Method for J Integral Characterization of Fracture Toughness, ASTM STP Annual Book of ASTM Standards, ASTM, Philadelphia, PA, 03.01 (1996) 968.Search in Google Scholar

[10] R.C. Gonzalez, R.E. Woods: ‘Digital Image Processing’ 2nd Edition Pearson Education (Singapore) Pvt Ltd. India (2002).Search in Google Scholar

[11] J.C. Russ:Computer Assisted Microscopy, Plenum Press, New York (1990).10.1007/978-1-4613-0563-7Search in Google Scholar

[12] S. Sivaprasad, S. Tarafder, V.R. Ranganath, S.K. Das, K.K. Ray:Met. Metall. and Mater. Trans. A33 (2002) 3731.10.1007/s11661-002-0245-8Search in Google Scholar

[13] S. Sivaprasad, S. Tarafder, V.R. Ranganath, K.K. Ray:J. Mater. Sci. Eng. A284 (2000) 195.10.1016/S0921-5093(00)00739-5Search in Google Scholar

[14] M. Tarafder, S. Tarafder, V.R. Ranganath: Int. J. Fatigue (1997) 19.10.1016/S0142-1123(97)00054-6Search in Google Scholar

[15] H. Kobayashi, H. Nakamura, H. Nakazawa:C.F. Shih, J.P. Gudas (Eds.), Elastic-Plastic Fracture: Second Symposium, Volume II-Fracture Resistance Curves and Engineeing Applications, ASTM STP 803, American Society for Testing and Materials (1983) II-420.10.1520/STP803V2-EBSearch in Google Scholar

[16] A. Halim, W. Dahl, K.E. Hagedorn:Engin. Fract.Mech.31 (1988) 857.10.1016/0013-7944(88)90241-XSearch in Google Scholar

[17] C. Lipson, N.J. Smith:Statistical Design and Analysis of Engineering Experiments, International Students Ed., McGraw Hill, Kogakusha (1973) 29.Search in Google Scholar

[18] K. Ohji, A. Otsuka, H. Kobayashi:Elastic-Plastic Fracture: Second Symposium, Volume II-Fracture Resistance Curves and Engineering Applications, ASTM STP 803, C.F. Shih, J.P. Gudas (Eds.), American Society for Testing and Materials (1983) II-398.Search in Google Scholar

[19] R.J. Barnhurst, J.E. Gruzleski:Metall. Trans. A16 (1985) 613.10.1007/BF02814235Search in Google Scholar

[20] ESIS P2-92, ESIS procedure for determining the fracture behaviour of materials, Technical Committee I: Esastic-Plastic Fracture Subcommittee 1.4: Fracture Mechanics Testing Standards (1992).Search in Google Scholar
Received: 2004-02-20
Accepted: 2004-12-18
Published Online: 2022-02-01

© 2005 Carl Hanser Verlag, München

Articles in the same Issue

  1. Frontmatter
  2. Articles Basic
  3. Diffusion in molybdenum disilicide
  4. Martensitic transformation, ductility, and shape-memory effect of polycrystalline Ni56Mn25 – xFexGa19 alloys
  5. Mechanical and electrical properties of Ti2SnC dispersion-strengthened copper
  6. Thermodynamic and phase relation study of the Ni–Ge –O system in the solid state
  7. Thermodynamic assessment of Mg–Al–Mn phase equilibria, focusing on Mg-rich alloys
  8. DSC study on the phase decomposition of an Al–Cu alloy occurring during annealing at 403 K
  9. Structure and thermal stability of a melt-quenched single-phase nanocrystalline Hf61Fe39 alloy
  10. Thermodynamic assessment of the ternary Cu–Pb–O system
  11. Combined EELS, EDX, and STEM investigations of Cu-induced nanostrucutures and thin surface layer phases
  12. Articles Applied
  13. Fatigue failure of titanium implants for mandibular reconstruction
  14. Solid state reaction mechanism for the synthesis of La1 – xSrxCoO3–δ (0.1 ≤ x ≤ 0.7)
  15. Dislocation structures in 16MND5 pressure vessel steel strained in uniaxial tension at –196 °C
  16. Microstructure of AZ91 alloy deformed by equal channel angular pressing
  17. The effect of copper on secondary phase precipitation in duplex stainless steel – a thermodynamic calculations approach
  18. Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel
  19. Copper-lithium alloy produced by powder metallurgy procedures and its age-hardening response
  20. Effects of the local microstructures on the mechanical properties in FSWed joints of a 7075-T6 Al alloy
  21. Estimating ternary surface tension for systems with limited solubility
  22. Notifications/Mitteilungen
  23. Personal/Personelles
  24. News/Aktuelles
  25. Conferences/Konferenzen
https://doi.org/10.3139/ijmr-2005-0160
Keywords for this article
Ductile fracture; Stretch zone; Image processing; HSLA

Articles in the same Issue

  1. Frontmatter
  2. Articles Basic
  3. Diffusion in molybdenum disilicide
  4. Martensitic transformation, ductility, and shape-memory effect of polycrystalline Ni56Mn25 – xFexGa19 alloys
  5. Mechanical and electrical properties of Ti2SnC dispersion-strengthened copper
  6. Thermodynamic and phase relation study of the Ni–Ge –O system in the solid state
  7. Thermodynamic assessment of Mg–Al–Mn phase equilibria, focusing on Mg-rich alloys
  8. DSC study on the phase decomposition of an Al–Cu alloy occurring during annealing at 403 K
  9. Structure and thermal stability of a melt-quenched single-phase nanocrystalline Hf61Fe39 alloy
  10. Thermodynamic assessment of the ternary Cu–Pb–O system
  11. Combined EELS, EDX, and STEM investigations of Cu-induced nanostrucutures and thin surface layer phases
  12. Articles Applied
  13. Fatigue failure of titanium implants for mandibular reconstruction
  14. Solid state reaction mechanism for the synthesis of La1 – xSrxCoO3–δ (0.1 ≤ x ≤ 0.7)
  15. Dislocation structures in 16MND5 pressure vessel steel strained in uniaxial tension at –196 °C
  16. Microstructure of AZ91 alloy deformed by equal channel angular pressing
  17. The effect of copper on secondary phase precipitation in duplex stainless steel – a thermodynamic calculations approach
  18. Stretch-zone analysis by image processing for the evaluation of initiation fracture toughness of a HSLA steel
  19. Copper-lithium alloy produced by powder metallurgy procedures and its age-hardening response
  20. Effects of the local microstructures on the mechanical properties in FSWed joints of a 7075-T6 Al alloy
  21. Estimating ternary surface tension for systems with limited solubility
  22. Notifications/Mitteilungen
  23. Personal/Personelles
  24. News/Aktuelles
  25. Conferences/Konferenzen
Sign up now to receive a 20% welcome discount
Institutional Access
How does access work?
Have an idea on how to improve our website?
Please write us.
© 2025 De Gruyter Brill
Downloaded on 11.9.2025 from https://www.degruyterbrill.com/document/doi/10.3139/ijmr-2005-0160/html
Scroll to top button