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Salemi Golezani, Ali, Esmaily, M., Mortazavi, N.. (1392). A study on the sub-structure and mechanical properties of friction stir processed AA 6061-T6 joints with ultra-fine grained structure. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 2(1), 33-46.
Ali Salemi Golezani; M. Esmaily; N. Mortazavi. "A study on the sub-structure and mechanical properties of friction stir processed AA 6061-T6 joints with ultra-fine grained structure". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 2, 1, 1392, 33-46.
Salemi Golezani, Ali, Esmaily, M., Mortazavi, N.. (1392). 'A study on the sub-structure and mechanical properties of friction stir processed AA 6061-T6 joints with ultra-fine grained structure', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 2(1), pp. 33-46.
Salemi Golezani, Ali, Esmaily, M., Mortazavi, N.. A study on the sub-structure and mechanical properties of friction stir processed AA 6061-T6 joints with ultra-fine grained structure. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1392; 2(1): 33-46.

A study on the sub-structure and mechanical properties of friction stir processed AA 6061-T6 joints with ultra-fine grained structure

Journal of Advanced Materials and Processing
مقاله 6، دوره 2، شماره 1، اردیبهشت 2014، صفحه 33-46    اصل مقاله (986.38 K)
نوع مقاله: Research Paper
نویسندگان
Ali Salemi Golezani* 1؛ M. Esmaily2؛ N. Mortazavi3
1Department of Materials Engineering, Karaj Branch, Islamic Azad University, Karaj, Iran.
2Department of Chemical and Biological Engineering, Chalmers University of Technology, Göteborg, Sweden.
3Department of Applied Physics, Chalmers University of Technology, Göteborg, Sweden.
چکیده
Ultra-fine grained (UFG) structure (~0.6 µm) was produced in the stir zone (SZ) of 6061-T6 aluminum alloy joints using friction stir processing (FSP) cooled by liquid nitrogen (N2). A new experimental set-up was used to simultaneously quench the lower and upper surfaces of the samples during the processing. In addition, FSPed joints, using a steel backing plate, were produced at room temperature as a reference. Sub-structural studies have been carried out to investigate the occurrence of dynamic recrystallization and grain growth in the weld area of the samples. The results indicate that the microstructure was not fully recrystallized as a high dislocation density (3.5×1014 m-2) was measured in the stir zone (SZ) of rapidly cooled joints in compare with that of the air-cooled joints (1.5×1014 m-2). Moreover, the rapid cooling generated a very high dislocation density of about 6.5×1014 m-2 in the thermo-mechanical affected zone (TMAZ). Accordingly, better mechanical properties were obtained in the SZ. In contrast, lower strain hardening capacity and hardening exponent values were obtained in the rapidly cooled joints where the highest fraction of low angle grain boundaries (LAGBs) and largest number of dislocations were measured.
کلیدواژه‌ها
Friction stir wrocessing؛ Aluminum Alloy؛ sub-structural analysis؛ dislocation density
مراجع

 

  1. H. Hasegawa, S. Komura, A. Utsunomiya, Z. Horita, M. Furukawa, M. Nemoto M, Mater. Sci.Eng.A. 265, 1999, pp. 188-196.
  2. R. Z. Valiev, R. K. Islamgaliev, I.V. Alexandrov, Prog. Mater. Sci. 45, 2000,
    pp. 103-189.
  3. M. Umemoto, T. Todaka, J.L. Tsuchiya, Mater. Sci. Forum. 503, 2006, p. 11-8.
  4. C. M. Hu, C. M. Lai, P. W. Kao, N. J. Ho, J. C. Huang, Mater. Chara. 61, 2010,
    pp. 1043-1053.
  5. N. Kumar, R.S. Mishra, Mater. Chara. 74, 2012, pp. 1-10.
  6. K. T. Park, H. J. Kwon, W. J. Kim, Y. S. Kim, Mater. Sci. Eng.A. 316, 2001,
    pp. 145-152.
  7. Y. J. Kwon,I.Shigematsu, N. Saito, Mater. Trans. 45, 2004, pp. 2304-2311.
  8. D. Orlov, Y. Todaka, M. Umemoto, Y. Beygelzimer, Z. Horita, N. Tsuji, Mater. Sci. Forum 604, 2009, pp. 171-178.
  9. H. Alihosseini, G. Faraji, A.F. Dizaji, K. Dehghani, Mater. Chara. 68, 2012, pp. 14-21.
  10. R. S. Mishra, M. W. Mahoney, S. X. McFadden, N. A. Mara, A. K. Mukherjee, Scr. Mater. 42, 2000, pp. 163-168.
  11. R. S. Mishra, M. W. Mahoney, Mater. Sci. Forum. 507, 2001, pp. 357-359.
  12. Z. Y. Ma, R. S. Mishra, M. W. Mahoney, Acta Mater. 50, 2002, pp. 4419-4430.
  13. A. H. Feng, Z. Y. Ma, Scr. Mater. 56, 2007, pp. 397-400.
  14. Y. Morisada, H. Fujii, T. Nagaoka, M. Fukusumi, Mater. Sci.Eng.A. 419, 2006, pp. 344-348.
  15. J.-Q Su, T. W. Nelson, C. J. Sterling, J. Mater. Res. 18, 2003, pp. 1757-1760.
  16. C. G. Rhodes, M. W. Mahoney, W. H. Bingel, M. Calabrese, Scr. Mater. 48, 2003, pp. 1451-1455.
  17. Z. Y. Ma, R. S. Mishra, M. W. Mahoney, R. Grimes, Mater. Sci. Eng.A. 351, 2003,
    pp. 148-153.
  18. I. Charit, Z. Y. Ma, R. S. Mishra, In: Taleff EM, Friedman PA,KrajewskiPE, Mishra RS, Scroth JG, editors. Warrendale (PA), TMS, 2004.
  19. M. Esmaily, A. Shokuhfar, Def. Diff. Forum 297, 2010, pp. 1116-1121.
  20. W. Woo, H. Choo, D. W. Brown, Z. Feng, Metal. Mater. Trans. A. 38A, 2007, pp. 69-76.
  21. M. El-Rayesa, E. A. El-Danafa, J. Mater. Proc. Technol. 212, 2012, pp. 1157-1168.
  22. K. Elangovan, V. Balasubramanian, Mater. Desig. 29, 2008, pp. 362-373.
  23. W. Woo, H. Choo, D. W. Brown, Z. Feng, P. K. Liaw, Mater. Sci.Eng.A. 437, 2006, pp. 64–69.
  24. W. Woo, Z. Feng, X.-L. Wang, D.W. Brown, B. Clausen, K. An, H. Choo, C.R. Hubbard, S.A. David, Sci. Technol. Weld. Join. 12, 2007, pp. 298–303.
  25. C. I. Chang, X. H. Du, J. C. Huang, Scr. Mater. 57, 2007, pp. 209-212.
  26. K. Poorhaydari, B. M. Patchett, D. J. Ivey, Weld. J. 48, 2005, pp. 149S-155S.
  27. P. Suortti. The Rietveld Method, R.A. Young (Ed.).OxfordUniversityPress,Oxford, IUCr Monographs on Crystallography. pp. 167-185.
  28. M. A. Krivoglaz. Theory of X-ray and Thermal Neutron Scattering by realCrystals. Plenum Press,New York, pp. 1969:258.
  29. T. Ungar, H. Mughrabi, D. Ronnpagel, M. Wilkens, Acta Metall. 32, 1984, pp. 333-342.
  30. A. Sarkar, A. Bhowmik, S. Suwas, Mater. Sci. Proc. 94, 2009, pp. 943–948.
  31. A. Sarkar, P. Mukherjee, P. Barat, Mater. Sci. Eng. A. 485, 2008, pp. 176–181.
  32. W. Woo, T. Ungar, Z. Feng, E. Kenik, B. Clausen, Metall. Trans. A. 41, 2010,
    pp. 1210-1216.
  33. M. W. Mahoney, R. S. Mishra, ASM International. 2007, p. 42.
  34. G. G. Roy, R. Nandan, T. DebRoy, Sci. Tech. Weld. Join. 11, 2006, pp. 606-608.
  35. M. Esmaily, S. N. Mortazavi, P. Todehfalah, M. Rashidi, Mater. Desig. 47, 2013,
    pp. 143-150.
  36. K. Lu, M.L. Sui, Scr. Mater. 28, 1993, pp. 1465-1470.
  37. W. Zhang, H. Wang, R.W. Scattergood, J. Narayan, C.C. Koch, Acta Mater. 50, 2002, pp. 3995-4004.
  38. T. W. Nelson, J. Q. Su, R. Mishra, M. Mahoney, Acta Mater. 51, 2003, pp. 713-729.
  39. G. Liu, L.E. Murr, C.S. Niou, J.C. McClure, F.R. Vega, Scr. Mater. 37, 1997, pp. 355-361.
  40. S. Lim, S. Kim, C.G. Lee, S.J. Kim, Metall. Mater. Trans. A. 35, 2004, pp. 2829-2835.
  41. S. R. Ren, Z. Y. Ma, L. Q. Chen, Scr. Mater. 56, 2007, pp. 69-72.
  42. A. Scialpi, L. A. DeFilippis, P. Cavaliere, Mater. Desig. 28, 2007, pp. 1124-1129.
  43. P. A. Manohar, D. P. Dunne, T. Chandra, C. R. Killmore, ISIJ Int., 36, 1996, pp. 194-196.
  44. W. Read, W. Shockley, Phys. Rev. 78, 1950, pp. 275-289.
  45. M. Taheri, H. Weiland, A. Rollett, Metall. Mater. Trans. A. 37, 2006, pp. 19-25.
  46. M. Cabibbo, E. Meccia, E. Evangelista, Mater. Chem. Phys. 81, 2003, pp. 289-292.
  47. R. W. Fonda, J. F. Bingert, Metall. Mater. Trans. A. 35, 2004, pp. 1487-1499.
  48. S. H. Kang, W. H. Bang, J. Cho, H. Han, H.H. Oh, C.G. Lee, S.J. Kim, Mater. Sci. Forum 905, 2005, pp. 495-497.
  49. C. Hamilton, S. Dymek, M. Blicharski, W. Brzegowy, Sci. Tech. Weld. Join. 12, 2007, pp. 702-707.
  50. J. Luo, Z. Mei, W. Tian, Z. Wang, Mater. Sci.Eng.A. 441, 2006, pp. 282–290.
  51. N. Afrin, D. L. Chen, X. Cao, M. Jahazi, Scr. Mater. 57, 2007, pp. 1004-1007.
  52. G. E. Dieter, Mechanical Metallurgy,McGraw-Hill,New York, Third edition, 1986.
  53. W. F. Hosford, Mechanical Behavior of Materials,CambridgeUniversityPress,New York, 2005.
  54. M. J. Starink, A. Deschamps, S. C. Wang, Scr. Mater. 58, 2008, pp. 377–382.
  55. Y. S. Sato, H. Kokawa, M. Enomoto, S. Jogan, Metall. Trans. A. 30,1999, pp. 2427-37.
  56. B. Heinz, B. Skrotzki, Metall. Mater. Trans. B. 33, 2002, pp. 489-498.
  57. C. Gallais, A. Denquin, Y. Brechet, G. Lapasset, Mater. Sci. Eng.A. 496, 2008,
    pp. 77-89.
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