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Philosophical Magazine A Volume 72, 1995 - Issue 2
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Original Articles

An electron microscope study of deformation and crack propagation in (α2 + γ) titanium aluminides

F. Appel Institute for Materials Research, GKSS-Research Centre, D-21502, Geesthacht, Germany
,
U. Christoph Institute for Materials Research, GKSS-Research Centre, D-21502, Geesthacht, Germany
&
R. Wagner Institute for Materials Research, GKSS-Research Centre, D-21502, Geesthacht, Germany
Pages 341-360 | Received 08 May 1994, Accepted 06 Jan 1995, Published online: 27 Sep 2006

Citations (56)

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Read on this site (3)

T.E.J. Edwards. (2018) Recent progress in the high-cycle fatigue behaviour of γ-TiAl alloys. Materials Science and Technology 34:16, pages 1919-1939.
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F. Appel . (2005) An electron microscope study of mechanical twinning and fracture in TiAl alloys. Philosophical Magazine 85:2-3, pages 205-231.
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Kyosuke Kishida, Haruyuki Inui & Masaharu Yamaguchi. (1998) Deformation of lamellar structure in TiAl-Ti3Al two-phase alloys. Philosophical Magazine A 78:1, pages 1-28.
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Articles from other publishers (53)

Hao Deng, Yong-Qiang Wei, Jun Tang, Ai-Jun Chen, Long-Qing Chen & Zu-Xi Xia. (2018) A high-Nb–TiAl alloy with ultrafine-grained structure fabricated by cryomilling and spark plasma sintering. Rare Metals 42:5, pages 1678-1685.
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Rong Fu, Zhiyuan Rui, Ruicheng Feng, Yun Dong & Xin Lv. (2022) Effects of γ/γ lamellar interfaces on translamellar crack propagation in TiAl alloys. Journal of Alloys and Compounds 918, pages 165616.
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Jiyao Liu & Laiqi Zhang. (2021) Molecular Dynamics Simulation of the Tensile Deformation Behavior of the γ(TiAl)/α2(Ti3Al) Interface at Different Temperatures. Journal of Materials Engineering and Performance 31:2, pages 918-932.
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Anupam Neogi & Rebecca Janisch. (2021) Twin-boundary assisted crack tip plasticity and toughening in lamellar -TiAl . Acta Materialia 213, pages 116924.
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Anupam Neogi, Masud Alam, Alexander Hartmaier & Rebecca Janisch. (2020) Anisotropic failure behavior of ordered intermetallic TiAl alloys under pure mode-I loading. Modelling and Simulation in Materials Science and Engineering 28:6, pages 065016.
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Thomas Edward James Edwards, Fabio Di Gioacchino & William John Clegg. (2019) An experimental study of the polycrystalline plasticity of lamellar titanium aluminide. International Journal of Plasticity 118, pages 291-319.
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Wen Daosheng, Kong Beibei, Wang Shouren, Shan Debin, Qiao Yang & Zong Yingying. (2019) Mechanism of hydrogen-restrained crack propagation and practical application research of thermohydrogen treatment in a TiAl-based alloy. International Journal of Hydrogen Energy 44:13, pages 6938-6948.
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Seong-Woong Kim & Jeoung Han Kim. (2018) In-situ observations of deformation twins and crack propagation in a CoCrFeNiMn high-entropy alloy. Materials Science and Engineering: A 718, pages 321-325.
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Fritz Appel, Jonathan D.H. Paul, Peter Staron, Michael Oehring, Otmar Kolednik, Jozef Predan & Franz Dieter Fischer. (2018) The effect of residual stresses and strain reversal on the fracture toughness of TiAl alloys. Materials Science and Engineering: A 709, pages 17-29.
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F. Appel, R. Wagner & Vinod Kumar. 2017. Reference Module in Materials Science and Materials Engineering. Reference Module in Materials Science and Materials Engineering.
F. Appel, H. Clemens & F.D. Fischer. (2016) Modeling concepts for intermetallic titanium aluminides. Progress in Materials Science 81, pages 55-124.
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Ulrich Fröbel & Andreas Stark. (2014) Microstructural Evolution in Gamma Titanium Aluminides During Severe Hot-Working. Metallurgical and Materials Transactions A 46:1, pages 439-455.
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Fritz Appel, Jonathan David Heaton Paul & Michael Oehring. 2011. Gamma Titanium Aluminide Alloys. Gamma Titanium Aluminide Alloys 573 682 .
Fritz Appel, Jonathan David Heaton Paul & Michael Oehring. 2011. Gamma Titanium Aluminide Alloys. Gamma Titanium Aluminide Alloys 357 401 .
Tao Wang, Hongzhen Guo, Yanwei Wang, Xiaona Peng, Yan Zhao & Zekun Yao. (2011) The effect of microstructure on tensile properties, deformation mechanisms and fracture models of TG6 high temperature titanium alloy. Materials Science and Engineering: A 528:6, pages 2370-2379.
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X. Lu, X.B. He, B. Zhang, L. Zhang, X.H. Qu & Z.X. Guo. (2009) Microstructure and mechanical properties of a spark plasma sinteredTi–45Al–8.5Nb–0.2W–0.2B–0.1Y alloy. Intermetallics 17:10, pages 840-846.
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Sharvan Kumar & William A. Curtin. (2007) Crack interaction with microstructure. Materials Today 10:9, pages 34-44.
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S.W. Kim, K.S. Kumar, M.H. Oh & D.M. Wee. (2007) Crack propagation behavior in TiAl–Nb single and Bi-PST crystals. Intermetallics 15:7, pages 976-984.
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F. Appel & H. Clemens. (2006) Intermetallische Titanaluminide: Werkstoffe für hohe TemperaturenIntermetallic titanium aluminides: Materials for high temperatures. BHM Berg- und Hüttenmännische Monatshefte 151:5, pages 195-199.
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Sung G. Pyo & Nack J. Kim. (2005) Role of Interface Boundaries in the Deformation Behavior of TiAl Polysynthetically Twinned Crystal: In situ Transmission Electron Microscopy Deformation Study. Journal of Materials Research 20:7, pages 1888-1901.
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K. Xia. 2005. The Deformation and Processing of Structural Materials. The Deformation and Processing of Structural Materials 164 202 .
Y Wu & S.K Hwang. (2004) The effect of yttrium on microstructure and dislocation behavior of elemental powder metallurgy processed TiAl-based intermetallics. Materials Letters 58:15, pages 2067-2072.
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S.W. Kim, P. Wang, M.H. Oh, D.M. Wee & K.S. Kumar. (2004) Mechanical properties of Si- and C-doped directionally solidified TiAl–Nb alloys. Intermetallics 12:5, pages 499-509.
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P Wang, N Bhate, K.S Chan & K.S Kumar. (2003) Colony boundary resistance to crack propagation in lamellar Ti–46Al. Acta Materialia 51:6, pages 1573-1591.
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F. Appel & M. Oehring. 2002. Titan und Titanlegierungen. Titan und Titanlegierungen 39 103 .
F. Appel, U. Christoph & M. Oehring. (2002) Creep deformation in two-phase titanium aluminide alloys. Materials Science and Engineering: A 329-331, pages 780-787.
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J.J.M. Arata, K.S. Kumar, W.A. Curtin & A. Needleman. (2002) Crack growth across colony boundaries in binary lamellar TiAl. Materials Science and Engineering: A 329-331, pages 532-537.
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C.Y. Nam, D.M. Wee, P. Wang & K.S. Kumar. (2002) Microstructure and toughness of nitrogen-doped TiAl alloys. Intermetallics 10:2, pages 113-127.
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F. Appel & R. Wagner. 2001. Encyclopedia of Materials: Science and Technology. Encyclopedia of Materials: Science and Technology 4246 4264 .
F. Appel, M. Oehring & R. Wagner. (2000) Novel design concepts for gamma-base titanium aluminide alloys. Intermetallics 8:9-11, pages 1283-1312.
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Y.H Lu, Y.G Zhang, L.J Qiao, Y.-B Wang, C.Q Chen & W.Y Chu. (2000) In-situ TEM study of fracture mechanisms of polysynthetically twinned (PST) crystals of TiAl alloys. Materials Science and Engineering: A 289:1-2, pages 91-98.
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Fritz Appel. (2011) Twinning in Crack Tip Plasticity of Two-Phase Titanium Aluminides. MRS Proceedings 646.
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Fritz Appel, Helmut Clemens & Michael Oehring. (2011) Recent Advances in Development and Processing of Titanium Aluminide Alloys. MRS Proceedings 646.
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Fritz Appel & U. Christoph. (1999) Coherency stresses and interface-related deformation phenomena in two-phase titanium aluminides. Intermetallics 7:10, pages 1173-1182.
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F. Appel, U. Sparka & R. Wagner. (1999) Work hardening and recovery of gamma base titanium aluminides. Intermetallics 7:3-4, pages 325-334.
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U. Christoph, M. Oehring & F. Appel. (2011) Interface Related Strength Phenomena in Two-Phase Titanium Aluminides. MRS Proceedings 586.
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J.G. Wang, L.M. Hsiung & T.G. Nieh. (1998) Formation of deformation twins in a crept lamellar TiAl alloy. Scripta Materialia 39:7, pages 957-962.
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F. Appel & R. Wagner. (1998) Microstructure and deformation of two-phase γ-titanium aluminides. Materials Science and Engineering: R: Reports 22:5, pages 187-268.
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B Dogan, H Clemens & K.-H Schwalbe. (1998) Crack Initiation and Crack Growth Resistance of Ti-48Al-2Cr Sheet Material. Scripta Materialia 38:7, pages 1041-1049.
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M. Oehring, U. Lorenz, R. Niefanger, F Appel, H.-G. Brokmeier, R. Wagner, H. Clemens & N. Eberhardt. (2011) Mechanical Anisotropy of a Gamma Titanium Aluminide Alloy After Hot Extrusion. MRS Proceedings 552.
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F. Appel, U. Lorenz, U. Sparka & R. Wagner. (1998) Effects of dislocation dynamics and microstructure on crack growth mechanisms in two-phase titanium aluminide alloys. Intermetallics 6:7-8, pages 603-605.
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M.H. Yoo. (1998) Twinning and mechanical behavior of titanium aluminides and other intermetallics. Intermetallics 6:7-8, pages 597-602.
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U. Lorenz, F. Appel & R. Wagner. (1997) Dislocation dynamics and fracture processes in two-phase titanium aluminide alloys. Materials Science and Engineering: A 234-236, pages 846-849.
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D. Häussler, U. Messerschmidt, M. Bartsch, F. Appel & R. Wagner. (1997) In situ high-voltage electron microscope deformation study of a two-phase (α2 + γ) Ti-Al alloy. Materials Science and Engineering: A 233:1-2, pages 15-25.
Crossref
F. Appel, U. Lorenz, M. Oehring, U. Sparka & R. Wagner. (1997) Thermally activated deformation mechanisms in micro-alloyed two-phase titanium amminide alloys. Materials Science and Engineering: A 233:1-2, pages 1-14.
Crossref
J.G. Wang, L.C. Zhang, G.L. Chen & H.Q. Ye. (1997) Formation of stress-induced 9R structure in a hot-deformed Ti-45Al-10Nb alloy. Scripta Materialia 37:2, pages 135-140.
Crossref
M.A. Morris & M. Leboeuf. (1997) Grain-size refinement of γ-Ti-Al alloys: effect on mechanical properties. Materials Science and Engineering: A 224:1-2, pages 1-11.
Crossref
M. H. Yoo & C. L. Fu. (2011) Interfacial Properties and Mechanical Behavior of Titanium Aluminides. MRS Proceedings 492.
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M.A. Morris & M. Leboeuf. (1997) II. Deformed microstructures during creep of TiAl alloys: role of mechanical twinning. Intermetallics 5:5, pages 339-354.
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H. Clemens, W. Glatz & F. Appel. (1996) Tensile properties and strain rate sensitivity of Ti-47Al-2Cr-0.2Si sheet material with different microstructures. Scripta Materialia 35:3, pages 429-434.
Crossref
S. Yokoshima & M. Yamaguchi. (1996) Fracture behavior and toughness of PST crystals of TiAl. Acta Materialia 44:3, pages 873-883.
Crossref
F. Appel, H. Clemens, W. Glatz & R. Wagner. (2011) Tensile Properties and Deformation Mechanisms in Two-Phase Titanium Aluminide Sheet Material. MRS Proceedings 460.
Crossref
F. Appel, U. Christoph, U. Lorenz & D R. Wagner. (2011) Effect of Coherency Stresses on the Stability of Lamellar (α 2 +γ) Titanium Aluminides . MRS Proceedings 404.
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