Abstract
Solid-state phase transformations and phase transition temperatures in Ti-45 at.% Al and Ti-45 at.% Al-(5, 7.5, 10) at.% Nb alloys were analyzed experimentally and compared to thermodynamic calculations. Results from scanning electron microscopy, high-energy and conventional X-ray diffraction as well as differential scanning calorimetry were used for the characterization of the prevailing phases and phase transformations. For the prediction of phase stabilities and phase transition temperatures, thermodynamic calculations using the CALPHAD method were conducted. In order to achieve better agreement between calculated and experimental results, a commercially available database was modified using our own results from thermo-physical measurements and annealing treatments.
References
[1] F.Appel, M.Oehring, in: C.Leyens, M.Peters (Eds.), Titanium and Titanium Alloys, WILEY- VCH GmbH & Co. KGaA, Weinheim, Germany (2003) 89.10.1002/9783527636204Search in Google Scholar
[2] H.Kestler, H.Clemens, in: M.Peters, C.Leyens (Eds.), Titan and Titanium Alloys, WILEY-VCH GmbH & Co. KGaA, Weinheim, Germany (2003) 369.Search in Google Scholar
[3] H.Clemens, H.Kestler: Advanced Engineering Materials2 (2000) 551.Search in Google Scholar
[4] F.Appel, U.Brossmann, U.Christoph, S.Eggert, P.Janschek, U.Lorenz, J.Müllauer, M.Oehring, J.D.H.Paul: Advanced Engineering Materials11 (2000) 699.Search in Google Scholar
[5] H.Clemens, A.Bartels, S.Bystrzanowski, H.Chladil, H.Leitner, G.Dehm, R.Gerling, F.P.Schimansky: Intermetallics14 (2006) 1380.Search in Google Scholar
[6] N.Saunders, in: Y.W.Kim, D.M.Dimiduk, M.H.Loretto (Eds.), Gamma Titanium Aliminides, TMS Warrendale, PA (1999) 183.Search in Google Scholar
[7] M.Beschliesser, H.Clemens, H.Kestler, F.Jeglitsch: Scripta Materialia49 (2003) 279.Search in Google Scholar
[8] S.Malinov, T.Novoselova, W.Sha: Materials Science and Engineering A386 (2004) 344.Search in Google Scholar
[9] F.Appel, M.Oehring, R.Wagner: Intermetallics8 (2000) 1283.10.1002/9780470686652.eae215Search in Google Scholar
[10] V.Küstner, M.Oehring, A.Chatterjee, V.Güther, H.G.Brokmeier, in: Y.W.Kim, H.Clemens, A.H.Rosenberger (Eds.), Gamma Titanium Aluminides 2003, TMS, Warrendale, USA (2003) 89.Search in Google Scholar
[11] T.Tetsui, K.Shindo, S.Kobayashi, M.Takeyama: Scripta Mater.47 (2002) 399.Search in Google Scholar
[12] F.Appel, M.Oehring, J.D.H.Paul: Advanced Engineering Materials8 (2006) 371.Search in Google Scholar
[13] T.Tetsui, K.Shindo, S.Kobayashi, M.Takeyama: Intermetallics11 (2003) 299.Search in Google Scholar
[14] H.F.Chladil, H.Clemens, H.Leitner, A.Bartels, R.Gerling, W.T.Marketz, E.Kozeschnik, in: M.J. Mills, H. Inui, H. Clemens, C.-L. Fu (Eds.), MRS Proc. 842, Warrendale, PA (2004) S5.47.1.10.1557/PROC-842-S5.47Search in Google Scholar
[15] T.T.Cheng, M.H.Loretto: Acta Materialia46 (1998) 4801.Search in Google Scholar
[16] H.F.Chladil, H.Clemens, A.Otto, V.Güther, S.Kremmer, A.Bartels, R.Gerling: BHM9 (2006) 356.Search in Google Scholar
[17] G.L.Chen, W.J.Zhang, Z.C.Liu, S.J.Li, Y.W.Kim, in: Y.W.Kim, D.M.Dimiduk, M.H.Loretto (Eds.), Gamma Titanium Aluminides 1999, TMS (1999) 371.Search in Google Scholar
[18] D.Nguyen-Manh, D.G.Pettifor, in: Y.W.Kim, D.M.Dimiduk, M.H.Loretto (Eds.), Gamma Titanium Aluminides, TMS, Warrendale, PA, USA (1999) 175.Search in Google Scholar
[19] T.H.Yu, C.H.Koo: Materials Science and Engineering A239 (1997) 694.10.1016/j.msec.2010.02.016Search in Google Scholar
[20] K.-D.Liss, A.Bartels, A.Schreyer, H.Clemens: Textures Microstruct.35 (2003) 219.10.1144/GSL.SP.2001.200.01.13Search in Google Scholar
[21] K.-D.Liss, A.Bartels, H.Clemens, S.Bystrzanowski, A.Stark, T.Buslaps, F.-P.Schimansky, R.Gerling, C.Scheu, A.Schreyer: Acta Materialia54 (2006) 3721.Search in Google Scholar
[22] T.Novoselova, S.Malinov, W.Sha, A.Zhecheva: Mater. Sci. Eng. A371 (2004) 103.Search in Google Scholar
[23] H. F.Chladil, H.Clemens, H.Leitner, A.Bartels, R.Gerling, F.P.Schimansky, S.Kremmer: Intermetallics14 (2006) 1194.Search in Google Scholar
[24] H.F.Chladil, H.Clemens, H.Leitner, A.Bartels, W.T.Marketz: Advanced Engineering Materials7 (2005) 1131.Search in Google Scholar
[25] H.F.Chladil, H.Clemens, M.Takeyama, E.Kozeschnik, R.Gerling, A.Bartels, S.Kremmer, in: C.L.Fu, H.Clemens, J.Wiezorek, M.Takeyama, D.Morris (Eds.), MRS Fall Meeting 2006, MRS (2006) II07.Search in Google Scholar
[26] H.F.Chladil, Ph.D. Thesis, Montanuniversität Leoben, Austria (2007)Search in Google Scholar
[27] R.Gerling, H.Clemens, F.P.Schimansky: Advanced Engineering Materials6 (2004) 23.Search in Google Scholar
[28] L.Margulies, M.J.Kramer, R.W.McCallum, S.Kycia, D.R.Haeffner, J.C.Lang, A.I.Goldman: Rev. Sci. Instr.70 (1999) 3554.Search in Google Scholar
[29] A.P.Hammersley, S.O.Svensson, M.Hanfland, A.N.Fitch, D.Häusermann: High Press. Res.14 (1996) 235.Search in Google Scholar
[30] B.Sundman, B.Jansson, J.-O.Andersson: Calphad9 (1985) 153.10.1016/j.calphad.2004.10.001Search in Google Scholar
[31] E.Kozeschnik, B.Buchmayr, in: H.Cerjak, H.K.D.H.Bhadeshia (Eds.), Mathematical Modelling of Weld Phenomena, IOM, London (2001) 349.Search in Google Scholar
[32] I.Ansara: Int. Met. Rev.22 (1979) 20.10.1111/an.1979.20.1.22Search in Google Scholar
[33] N.Saunders, A.P.Miodownik, in: R.W.Cahn (Ed.), CALPHAD – A Comprehensive Guide, Pergamon Materials Series, Vol. 1, Pergamon, Oxford (1998).Search in Google Scholar
[34] A.Stark, A.Bartels, F.P.Schimansky, H.Clemens, in: C.L.Fu, H.Clemens, M.Takeyama, J.Wiezorek, D.Morris (Eds.), MRS Proc., (2007) II07.Search in Google Scholar
[35] W.Hohenauer: Austrian Research Centre Seibersdorf, Austria, private Communication.Search in Google Scholar
[36] W.W.Wendlandt, in: P.J.Elving, J.D.Winefordner (Ed.), Thermal Analysis, Chemical Analysis, Vol. Location (1986).Search in Google Scholar
[37] M.Takeyama, Y.Ohmura, M.Kikuchi, T.Matsuo: Intermetallics6 (1998) 643.Search in Google Scholar
[38] M.Takeyama, S.Kobayashi: Intermetallics13 (2005) 993.Search in Google Scholar
[39] M.Takeyama: Mater. Jpn35 (1996) 1058.10.1353/mln.1996.0067Search in Google Scholar
[40] L.A.Bendersky, W.J.Boettinger, B.P.Burton, F.S.Biancaniello, C. B.Shoemaker: Acta Metallurgica et Materialia38 (1990) 931.Search in Google Scholar
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