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Philosophical Magazine A Volume 79, 1999 - Issue 8
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Original Articles

An in-situ study of ordinary dislocation glide in γ-TiAl alloys

A. Couret Centre d'Elaboration des Matériaux et d'Etudes Structurales, CNRS, BP 4347, 29 rue J. Marvig, 31 0555, Toulouse Cedex 4, France
Pages 1977-1994 | Received 27 Jul 1998, Accepted 29 Oct 1998, Published online: 12 Aug 2009

Citations (36)

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Read on this site (6)

Lin Song, Junpin Lin & Jinshan Li. (2017) Ordinary dislocation configurations in high Nb-containing TiAl alloy deformed at high temperatures. Philosophical Magazine 97:7, pages 515-526.
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Josh Kacher & Ian M. Robertson. (2016) In situ TEM characterisation of dislocation interactions in α-titanium. Philosophical Magazine 96:14, pages 1437-1447.
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Daniel Caillard, Marc Legros & Alain Couret. (2013) Extrinsic obstacles and loop formation in deformed metals and alloys. Philosophical Magazine 93:1-3, pages 203-221.
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Yifeng Liao & Ian Baker. (2012) Study of yield stress anomaly of Fe2MnAl single crystal by in situ TEM straining. Philosophical Magazine 92:8, pages 959-985.
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D. Caillard & J. L. Martin. (2005) Dislocation motion controlled by interactions with crystal lattice: modelling and experiments. International Materials Reviews 50:6, pages 366-384.
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S. Zghal, A. Coujou & A. Couret. (2001) Transmission of the deformation through γ-γ interfaces in a polysynthetically twinned TiAl alloy I. Ordered domain interfaces (120° rotational). Philosophical Magazine A 81:2, pages 345-364.
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Articles from other publishers (30)

Ji Qi, Z. H. Aitken, Qingxiang Pei, Anne Marie Z. Tan, Yunxing Zuo, M. H. Jhon, S. S. Quek, T. Wen, Zhaoxuan Wu & Shyue Ping Ong. (2023) Machine learning moment tensor potential for modeling dislocation and fracture in and alloys . Physical Review Materials 7:10.
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Benjamin Galy, Michael Musi, Muriel Hantcherli, Guy Molénat, Alain Couret, Petra Spoerk-Erdely, Helmut Clemens & Jean-Philippe Monchoux. (2023) Glide and mixed climb dislocation velocity in γ-TiAl investigated by in-situ transmission electron microscopy. Scripta Materialia 228, pages 115333.
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Guy Molénat, Jean-Philippe Monchoux, Michael Musi, Petra Spoerk-Erdely, Helmut Clemens & Alain Couret. (2023) A TEM study of a<001> dislocations in the ßo phase of an intermetallic TNM-TiAl alloy. Scripta Materialia 226, pages 115247.
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Guy Molénat, Benjamin Galy, Michael Musi, Louïse Toualbi, Marc Thomas, Helmut Clemens, Jean-Philippe Monchoux & Alain Couret. (2022) Plasticity and brittleness of the ordered βo phase in a TNM-TiAl alloy. Intermetallics 151, pages 107653.
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Michael Musi, Christophe Deshayes, Guy Molénat, Louise Toualbi, Benjamin Galy, Petra Spoerk-Erdely, Muriel Hantcherli, Jean-Philippe Monchoux, Marc Thomas, Helmut Clemens & Alain Couret. (2022) Microstructure, Plasticity and Ductility of a TNM+ Alloy Densified by Spark Plasma Sintering. Metals 12:11, pages 1915.
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Camille Thenot, Rémy Besson, Pierre Sallot, Jean-Philippe Monchoux & Damien Connétable. (2022) Interactions of oxygen with intrinsic defects in L1 -TiAl in presence of substitutional solutes: Influence on diffusion kinetics . Computational Materials Science 201, pages 110933.
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Petra Spoerk-Erdely, Peter Staron, Jie Liu, Nikolai Kashaev, Andreas Stark, Katja Hauschildt, Emad Maawad, Svea Mayer & Helmut Clemens. (2021) Exploring Structural Changes, Manufacturing, Joining, and Repair of Intermetallic γ‐TiAl‐Based Alloys: Recent Progress Enabled by In Situ Synchrotron X‐Ray Techniques. Advanced Engineering Materials 23:11.
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Alain Couret, Jean-Philippe Monchoux & Daniel Caillard. (2019) On the high creep strength of the W containing IRIS-TiAl alloy at 850 °C. Acta Materialia 181, pages 331-341.
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Petra Erdely, Peter Staron, Emad Maawad, Norbert Schell, Helmut Clemens & Svea Mayer. (2018) Lattice and phase strain evolution during tensile loading of an intermetallic, multi-phase γ-TiAl based alloy. Acta Materialia 158, pages 193-205.
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Jean-Philippe Monchoux, Jiangshan Luo, Thomas Voisin & Alain Couret. (2017) Deformation modes and size effect in near-γ TiAl alloys. Materials Science and Engineering: A 679, pages 123-132.
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Thomas Voisin, Jean-Philippe Monchoux, Marc Thomas, Christophe Deshayes & Alain Couret. (2016) Mechanical Properties of the TiAl IRIS Alloy. Metallurgical and Materials Transactions A 47:12, pages 6097-6108.
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H. Jabbar, J.-P. Monchoux, M. Thomas & A. Couret. (2011) Microstructures and deformation mechanisms of a G4 TiAl alloy produced by spark plasma sintering. Acta Materialia 59:20, pages 7574-7585.
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I.H. Katzarov & A.T. Paxton. (2011) Is the pinning of ordinary dislocations in γ-TiAl intrinsic or extrinsic in nature? A combined atomistic and kinetic Monte Carlo approach. Acta Materialia 59:3, pages 1281-1290.
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A Couret. (2010) Low and high temperature deformation mechanisms in TiAl alloys. Journal of Physics: Conference Series 240, pages 012001.
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Tomáš Kruml, Karel Obrtlík, Martin Petrenec & Jaroslav Polák. (2009) Cyclic Response and Fatigue Life of TiAl Alloys at High Temperatures. Key Engineering Materials 417-418, pages 585-588.
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Daniel Caillard & Alain Couret. (2009) The Hall–Petch law investigated by means of in situ straining experiments in lamellar TiAl and deformed Al. Microscopy Research and Technique 72:3, pages 261-269.
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Houria Jabbar, Jean-Philippe Monchoux, Marc Thomas & Alain Couret. (2018) Development of G4 TiAl Alloys by Spark Plasma Sintering. MRS Proceedings 1128.
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P. Castany, F. Pettinari-Sturmel, J. Crestou, J. Douin & A. Coujou. (2007) Experimental study of dislocation mobility in a Ti–6Al–4V alloy. Acta Materialia 55:18, pages 6284-6291.
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Daniel Caillard. 2007. Alloy Physics. Alloy Physics 281 345 .
A. Couret & D. Caillard. 2006. Encyclopedia of Materials: Science and Technology. Encyclopedia of Materials: Science and Technology 1 14 .
Chokri Hadj Belgacem, Abdelaziz Ati & Roland Bonnet. (2005) The asymmetry of the lobe contrasts in two‐beam TEM as a test to obtain the Burgers vector of an inclined relaxing dislocation. physica status solidi (b) 242:3.
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. 2003. Thermally Activated Mechanisms in Crystal Plasticity. Thermally Activated Mechanisms in Crystal Plasticity 323 360 .
B. Viguier, I.L. Martin & J. Bonneville. 2002. 459 545 .
D. Caillard & A. Couret. (2002) Dislocation movements controlled by friction forces and local pinning in metals and alloys. Materials Science and Engineering: A 322:1-2, pages 108-117.
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Alain Couret. (2001) Glide mechanism of ordinary dislocations in the γ phase of TiAl. Intermetallics 9:10-11, pages 899-906.
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F. Pettinari, A. Couret, D. Caillard, G. Molénat, N. Clément & A. Coujou. (2001) Quantitative measurements in in situ straining experiments in transmission electron microscopy . Journal of Microscopy 203:1, pages 47-56.
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B.V Petukhov. (2001) Statistical model of the local pinning of dislocations due to cross-slip events. Materials Science and Engineering: A 309-310, pages 345-347.
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Fabienne Grégori & Patrick Veyssière. (2011) Mechanisms contributing to the pinning of ordinary dislocations in γ-TiAl. MRS Proceedings 646.
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Marc C. Fivel, Francois Louchet, Bernard Viguier & Marc Verdier. (2011) On the Stress Anomaly of γ-TiAl. MRS Proceedings 646.
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A. Couret, J. Crestou, D. Caillard, N. Clément, A. Coujou & G. Molénat. 2000. Multiscale Phenomena in Plasticity: From Experiments to Phenomenology, Modelling and Materials Engineering. Multiscale Phenomena in Plasticity: From Experiments to Phenomenology, Modelling and Materials Engineering 185 194 .

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