Journal of Advanced Materials and Technologies

Journal of Advanced Materials and Technologies

Investigation of severe plastic deformation effect on microstructure of Ti-6Al-4V alloy

Document Type : Research Note Article

Authors
Mehdi Jalali 1
K. Farmanesh 2
A. Soltani Pour 2
1 Master Student of Metallurgy Engineering, Malek Ashtar University, Iran.
2 Assistant Professor, Department of Materials Engineering, Malek Ashtar University, Iran.
10.30501/jamt.2637.70325
Abstract
In this study for investigation of severe plastic deformation effect on microstructure of Ti-6Al-4V alloy the accumulative roll bonding (ARB) process applied up to four cycles (equivalent strain of 3.2) at 300 ◦C. X-ray Diffraction (XRD) test was done for study of phase variation and observations of grain size variations. The results shows after the end of first cycle of ARB, many variations in XRD patterns were made which are results of grain size and texture in material. In addition, variations in XRD pattern are very low, as a result of happening in dynamical recovery because of stacking fault energy high rate of this alloy. For investigating of microstructural alloy of optical microscopy and field emission scanning electron microscopy (FESEM) and for measuring of grain size of transmission electron microscopy (TEM) are used. The results shows that ultra fine grain structure are including β+αphases in fourth cycles of ARB and shall produce grain with about approximately 80 nm.
Keywords
Ti-6Al-4V alloy
Severe plastic deformation
Accumulative Roll Bonding
Microstructure
[1] K.S. Kumar, H. Van Swygenhoven and S. Suresh, Acta Materialia, 2003, 51, 5743–5774.
[2] R.Z.  Valiev,  R.K.  Islamgaliev and I.V.  Alexandrov, Progress in Materials Science, 2000, 45, 103-189.
[3] G.G. YAPICI, Texas A&M University,  DOCTOR OF PHILOSOPHY, August 2007.
[4] S. Zherebtsov, G. Salishcheva, R. Galeyev and K. Maekawa, Materials Transactions, 2005, Vol. 46, No. 9, 2020 - 2025.
[5] S. Zherebtsova, G. Salishcheva and W. Łojkowski, Materials Science and Engineering: A, 2009, Volume 515, 43–48.
[6] A.V. Sergueeva, V.V. Stolyarov, R.Z. Valiev and A.K. Mukherjee, Scripta mater. 2000, 43, 819-824.
[7] D. Terada , S. Inoue and N. Tsuji,  J Mater Sci, 2007, 42, 1673-1681.
[8] N. Tsuji, Y. Ito, Y. Saito and Y. Minamino, Scripta Mater , 2002, 47, 893-899.
[9] P.R. Parmar, M. H. Mangrola, B. H. Parmar and V. G. Joshi, Multi Disciplinary Edu Global Quest (Quarterly),  2012, Volume 1, 146-154.
[10] بی. دی. کالیتی، مبانی پراش پرتو X (کاربردی)، اعتمادی، ب.، عمیقیان، ج.، انتشارات دانشگاه شیراز، شیراز، 1377.
[11] K.Y. Zhu, A. Vassel, F. Brisset, K. Lu and J. Lu, Acta Materialia, 2004, 52, 4101-4110.
[12] S.H. Lee, Y. Saito, N. Tsuji, H. Utsunomiya, and T.Sakai,  Scripta Materialia, Vol. 46 (2002) 281-285.
[13] X. Huang, N. Tsuji, N. Hansen, Y. Minamino, Materials Science and Engineering A340 (2003) 265-271.
[14] Y. Saito, H. Utsunomiya, N. Tsuji and T. Sakai, Acta Mater, 1999, 47, 579-583.
[15] F.J. Humphreys and M. Hatherly, Second Edition, Elsevier Science Ltd, 2004.
[16] D.R. Chichili, K.T. Ramesh and K.J. Hemker, J Mech Phys Solids 52 (2004) 1889-1909.
[17] A. Rezaee-Bazzaz and S. Ahmadian, Materials and Design, 2012, 34, 230-234.
 
Journal of Advanced Materials and Technologies
Volume 5, Issue 1
Spring 2016
Pages 59-64

  • Receive Date 26 July 2014
  • Revise Date 25 January 2016
  • Accept Date 15 May 2016