Issues »  Volume 38, Issue 10

Distribution of Local Strains in a Neighbourhood of Cracks in a Welded Seam of Ni—Cr—Fe According to Diffraction Data of Back Scattered Electrons

I. M. Fodchuk$^{1}$, M. D. Borcha$^{1}$, V. Yu. Khomenko$^{1}$, V. M. Tkach$^{2}$, O. O. Statsenko$^{2}$, K. A. Yushchenko$^{3}$, A. V. Zviagintsevа$^{3}$, N. O. Chervyakov$^{3}$

$^{1}$Yuriy Fedkovych Chernivtsi National University, 2 Kotsjubynskyi Str., 50012 Chernivtsi, Ukraine
$^{2}$V. Bakul Institute for Superhard Materials NAS of Ukraine, 2 Avtozavods’ka Str., 04074 Kyiv, Ukraine
$^{3}$E.O. Paton Electric Welding Institute, NAS of Ukraine, 11 Kazimir Malevich Str., UA-03680 Kyiv, Ukraine

Received: 09.08.2016. Download: PDF

The strain state of local regions in a neighbourhood of the cracks in a welded seam is studied for nickel alloy. Technique of local-strain tensor components’ determination in certain grains of polycrystalline samples is presented. Diagonal tensor components are determined using changes of intensity distribution for each diffraction band. Other components are specified from zone-axes’ displacements relative to their positions in the etalon Kikuchi pattern. Characteristic surfaces of strain tensors are constructed, and peculiarities of their planar distribution near cracks in the welded seams are examined.

Key words: Ni—Cr—Fe alloy, welded seam, tensometry, Kikuchi method.

URL: http://mfint.imp.kiev.ua/en/abstract/v38/i10/1321.html

DOI: https://doi.org/10.15407/mfint.38.10.1321

PACS: 06.06.Vz, 61.05.J-, 61.72.Ff, 61.72.Hh, 62.20.mt, 68.35.Gy, 81.20.Vj, 81.40.Np

Citation: I. M. Fodchuk, M. D. Borcha, V. Yu. Khomenko, V. M. Tkach, O. O. Statsenko, K. A. Yushchenko, A. V. Zviagintsevа, and N. O. Chervyakov, Distribution of Local Strains in a Neighbourhood of Cracks in a Welded Seam of Ni—Cr—Fe According to Diffraction Data of Back Scattered Electrons, Metallofiz. Noveishie Tekhnol., 38, No. 10: 1321—1333 (2016) (in Russian)

REFERENCES
  1. http://www.nickel-alloys.net
  2. J. N. DuPont, J. C. Lippold, and S.D. Kiser, Welding Metallurgy and Weldability of Nickel-Base Alloys (Hoboken, New Jersey: John Wiley & Sons, Inc.: 2009). Crossref
  3. K. A. Yushchenko, V. S. Savchenko, N. O. Chervyakov, and A. V. Zvyagintseva, Avtomaticheskaya Svarka, 5, No. 685: 10 (2010) (in Russian).
  4. R. Zhang, D. S. Kiser, and B. A. Backer, Special Metal Corporation, 1 (2008).
  5. A. J. Schwartz, M. Kumar, B. Adams, and D. Fild, Electron Backscatter Diffraction in Materials Science, Edition 2 (NewYork, Boston, Dordrech, London, Moscow: Kluwer Academic: Plenum Publisers: 2009). Crossref
  6. M. D. Borcha, S. V. Balovsyak, I. M. Fodchuk, V. Yu. Khomenko, O. P. Kroitor, and V. N. Tkach, J. Superhard Materials, 35, No. 5: 284 (2013). Crossref
  7. I. M. Fodchuk, S. V. Balovsyak, M. D. Borcha, Ya. D. Garabazhiv, and V. N. Tkach, Semiconductor Physics, Quantum Electronics and Optoelectronics, 13, No. 1: 262 (2010).
  8. D. J. Dingley, A. J. Wilkinson, G. Meaden, and P. S. Karamched, J. Electron Microscopy, 59: 155 (2010). Crossref
  9. A. Wilkinson and B. Britton, Materials Today, 15, No. 9: 366 (2012). Crossref
  10. M. D. Borcha, S. V. Balovsyak, I. M. Fodchuk, V. Yu. Khomenko, and V. N. Tkach, J. Superhard Materials, 35, No. 4: 220 (2013). Crossref
  11. M. D. Borcha, S. V. Balovsyak, Ya. D. Garabazhiv, V. N. Tkach, and I. M. Fodchuk, Metallofiz. Noveishie Tekhnol., 31, No. 2: 911 (2009).
  12. I. Fodchuk, S. Balovsyak, M. Borcha, Ya. Garabazhiv, and V. Tkach, phys. status solidi (a), 208, No. 11: 2591 (2011). Crossref
  13. M. D. Borcha, A. V. Zvyagintseva, V. N. Tkach, K. A. Yushchenko, S. V. Balovsyak, I. M. Fodchuk, and V. Yu. Khomenko, Metallofiz. Noveishie Tekhnol., 35, No. 10: 1359 (2013) (in Russian).
  14. D. J. Dingley, A. J. Wilkinson, G. Meaden, and P. S. Karamched, J. Electron Microscopy, 59: 155 (2010). Crossref
  15. A. Stoll and A. J. Wilkinson, Computational Mater. Sci., 89: 224 (2014). Crossref
  16. A. G. Gorshkov, L. N. Rabinskiy, and D. V. Tarlakovskiy, Osnovy Tenzornogo Analiza i Mekhanika Sploshnoj Sredy [Fundamentals of Tensor Analysis and Continuum Mechanics] (Moscow: Nauka: 2000) (in Russian).
  17. Yu. I. Dimitrienko, Nelinejnaya Mekhanika Sploshnoj Sredy [Nonlinear Continuum Mechanics] (Moscow: Fizmatlit: 2010) (in Russian).
  18. Rekomendacii po Svarke Metallicheskikh Materialov [Recommendations for Welding of Metallic Materials] (European Standard EN 1011-2: 2001) (in Russian).
  19. K. A. Yushchenko, A. V. Zvyagintseva, L. I. Markashova, G. B. Belyaev, and O. S. Kushnareva, Proc. 'Medovar Memorial Symposium' (7–10 June, 2016, Kyiv, Ukraine), p. 50.
  20. K. A. Yushchenko, V. S. Savchenko, A. V. Zvyagintseva, and L. I. Markashova, Cracking Phenomena in Welds IV (Eds. Tomas Boellinghaus, John C. Lippold, and Carl E. Cross) (Switzerland: Springer Intenational Publishing: 2016), p. 207. Crossref

© 2013–2017 "G.V. Kurdyumov Institute for Metal Physics"