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2015 | 128 | 4 | 570-573
Article title

Alpha Variant Selection Determined from Grain Misorientations in Ti-6Al-7Nb Alloy with a Duplex Microstructure

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Languages of publication
EN
Abstracts
EN
Titanium occurs in two structures; a high temperature body-centered cubic structure which is known as β phase and an ambient temperature α phase which has the hexagonal closed-packed structure. In the present study a biomedical Ti-6Al-7Nb alloy was investigated. The so-called duplex structure consisting of α lamellae and equiaxed primary α-grains was prepared by a thermal treatment. The α lamellae are created during cooling from a β-field according to the Burgers relation. This relation allows the formation of the α lamellae with different crystallographic orientations - so-called variants. The preferential misorientation between α lamellae was studied by a detailed electron backscattered diffraction analysis. The misorientation of grains in the duplex structure was modelled by a sum of random Mackenzie distribution and Gaussian peaks related to the preferred misorientations according to the Burgers relation. The preferred misorientations based on the Burgers relationship were identified in the biomedical Ti-6Al-7Nb alloy with duplex structure. It is confirmed that the variant selection of α lamellae is not random.
Keywords
EN
Publisher

Year
Volume
128
Issue
4
Pages
570-573
Physical description
Dates
published
2015-10
Contributors
author
  • Department of Physics of Materials, Charles University in Prague, Ke Karlovu 5, 121 16, Prague, Czech Republic
  • Department of Physics of Materials, Charles University in Prague, Ke Karlovu 5, 121 16, Prague, Czech Republic
author
  • Department of Physics of Materials, Charles University in Prague, Ke Karlovu 5, 121 16, Prague, Czech Republic
author
  • Department of Physics of Materials, Charles University in Prague, Ke Karlovu 5, 121 16, Prague, Czech Republic
author
  • Department of Physics of Materials, Charles University in Prague, Ke Karlovu 5, 121 16, Prague, Czech Republic
author
  • Academy of Sciences of the Czech Republic, Institute of Thermomechanics, Prague, Czech Republic
References
  • [1] C. Leyens, M. Peters, Titanium and Titanium Alloys, Wiley-VCH, Germany 2003, doi: 10.1002/3527602119
  • [2] W.G. Burgers, Physica 1, 561 (1934), doi: 10.1016/S0031-8914(34)80244-3
  • [3] T. Karthikeyan, S. Saroja, M. Vijayalakshmi, Scr. Mater. 5, 771 (2006), doi: 10.1016/j.scriptamat.2006.07.022
  • [4] N. Gey, M. Humbert, J. Mater. Sci. 38, 1289 (2003), doi: 10.1023/A:1022842712172
  • [5] K. Wang, M.Q. Li, Scr. Mater. 68, 964 (2013), doi: 10.1016/j.scriptamat.2013.02.048
  • [6] L.S. Tóth, B. Beausir, C.F. Guc, Y. Estrin, N. Scheerbaum, C.H.J. Davies, Acta Mater. 58, 6706 (2010), doi: 10.1016/j.actamat.2010.08.036
  • [7] V. Randle, G.S. Rohrerb, Y. Hua, Scr. Mater. 5, 183 (2008), doi: 10.1016/j.scriptamat.2007.09.044
  • [8] M. Janeček, J. Stráský, J. Čížek, P. Harcuba, K. Václavová, V.V. Polyakova, I.P. Semenova, Metall. Mater. Trans. A 45, 7 (2013), doi: 10.1007/s11661-013-1763-2
  • [9] J.K. Mackenzie, Acta Metall. 12, 223 (1964), doi: 10.1016/0001-6160(64)90191-9
  • [10] R. Boyer, G. Welsch, E.W. Collings, Materials Properties Handbook, Titanium Alloys, ASM International, USA 1994
  • [11] N. Gey, M. Humbert, Acta Mater. 50, 277 (2002), doi: 10.1016/S1359-6454(01)00351-2
  • [12] G.A. Sargent, K.T. Kinsel, A.L. Pilchak, A.A. Salem, S.L. Semiatin, Metall. Mater. Trans. A 43, 3570 (2012), doi: 10.1007/s11661-012-1245-y
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv128n424kz
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