Determination of the concentration of strain defects



A method for determining the concentration of defects such as micropores and microcracks occurring during plastic deformation of materials is described and justified on the basis of a multistage model of damage accumulation and experimental data obtained by an acoustic emission method. A comparison is made of experimental data obtained by various methods for a number of poly crystalline materials.

Key words

plastic deformation fracture multistage nature damage accumulation microcracks concentration acoustic emission 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    P. G. Cheremskoi, V. V. Slezov, and V. I. Betekhtin, Pores in a Solids [in Russian], Énergoatomizdat, Moscow (1990).Google Scholar
  2. 2.
    V. S. Ivanov, Failure of Metals [in Russian], Metallurgiya, Moscow (1979).Google Scholar
  3. 3.
    V. S. Ivanova, Introduction to Interdisciplinary Nanomaterials Science [in Russian], Sains-press, Moscow (2005).Google Scholar
  4. 4.
    A. I. Kozinkina, “Transition effect in the kinetics of damage accumulation,” Defektoskopiya, No. 9, 95–99 (1999).Google Scholar
  5. 5.
    L. M. Rybakova, “Mechanical features of metal failure in volumetric and surface plastic deformation,” Probl. Mashinostr. Nadezn. Mashin, No. 5 (1998), pp. 113–123.Google Scholar
  6. 6.
    V. I. Vettegrens’, S. O. Lazarev, and V. I. Petrov, Physical Basis of the Kinetics of Material Failure [in Russian], Phys.-Tech. Inst., Leningrad (1989).Google Scholar
  7. 7.
    B. A. Berezin and A. I. Kozinkina, “Physical models and methods of evaluating damage accumulation in solids,” Probl. Mashinostr. Nadezn. Mashin, No. 3 (2002), pp. 115–121.Google Scholar
  8. 8.
    V. V. Klyuev (ed.), Nondestructive Control: Handbook [in Russian], Vol. 7, Mashinostroenie, Moscow (2006).Google Scholar
  9. 9.
    C. I. Builo and A. I. Kozinkina, “Estimation of damage accumulation and the moment of transition from diffused to localized defect formation from reconstructed values of the flow of AE acts,” Fiz. Tverd. Tela, 38, No. 11, 3381–3384 (1996).Google Scholar
  10. 10.
    A. S. Tripalin and S. I. Builo, Acoustic Emission: Physicomechanical Aspects [in Russian], Izd. Rost. Univ., Rostov-on-Don (1986).Google Scholar
  11. 11.
    A. S. Tripalin, “Main directions of development and improvement of receiving transducers of acoustic emission,” in: Acoustic Emission of Materials and Structures (collected scientific papers) [in Russian], Vol. 1, Izd. Rost. Univ., Rostov-on-Don (1989), pp. 69–75.Google Scholar
  12. 12.
    A. V. Berezin and A. I. Kozinkina, “Method for measuring the defect concentration in plastically deformed materials during loading,” Russian Patent No. 2298785, MPC G 01 N 29/14, Publ. 05.10.2007, Byull. No. 13.Google Scholar

Copyright information

© MAIK/Nauka 2010

Authors and Affiliations

  1. 1.Southern Federal UniversityRostov-on-DonRussia

Personalised recommendations