Nucleation and growth of α phase in hot extruded Ti–46.6Al–2Mo–1.4Mn intermetallic alloy produced by hot extrusion of elemental powders

Pyo, Sung Gyu; Choi, Seunghoe; Yoo, Min Seok; Oh, Jinkeun; Whang, S.K.; Kim, Nack J.

doi:10.1016/j.msea.2004.01.053

Materials Science and Engineering: A

2004

DOI: 10.1016/j.msea.2004.01.053

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Nucleation and growth of α phase in hot extruded Ti–46.6Al–2Mo–1.4Mn intermetallic alloy produced by hot extrusion of elemental powders

Sung Gyu Pyo¹,

Seunghoe Choi

Min Seok Yoo

et al.

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Cited by 5 publications

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“…The average size of the fully lamellar grain was about 90µm. Research showed that the lamellar structure was formed via TiAl 3 →TiAl 3 + TiAl → Ti 3 Al + TiAl during the prepared process [7]. Figure 7 showed SEM-BSD images of three phases with different colors of white, gray and black.…”

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Parameters Optimization of γ-Ti-46.6Al-1.4Mn-2Mo Alloy by Hot-Pressing Sintering and its Microstructures

Wang

2013

KEM

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In order to obtain the maximum relative density of γ-Ti-46.6Al-1.4Mn-2Mo alloy, the effects of the sintering temperature, heating preservation time and compacting force prepared by hot pressing were studied using Back Propagation (BP) Neural Network. The process parameters were optimized by Genetic Algorithm (GA) contributed by the use of Matlab. The results show that the optimum preparation process for Ti-46.6Al-1.4Mn-2Mo alloy are hot-pressing sintering temperature of 1374oC, heating preservation time of 291 min, compacting force of 37Mpa. The relative density of Ti-46.6Al-1.4Mn-2Mo alloy prepared under the condition is 96.11% (predicted value is 96.87%) with the relative error was only 0.78%. The microstructures of Ti-46.6Al-1.4Mn-2Mo alloy are studied by X-ray, optical microscope and SEM.

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Parameters Optimization of γ-Ti-46.6Al-1.4Mn-2Mo Alloy by Hot-Pressing Sintering and its Microstructures

Wang

2013

KEM

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Carbon content driven high temperature γ-α2 interface modifications and stability in Ti–46Al–4Nb intermetallic alloy

Cabibbo

2020

Intermetallics

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Microstructure and mechanical properties of TiAl alloys produced by rapid heating and open die forging of blended elemental powder compacts

Zhang

Kong

et al. 2013

Materials Science and Engineering: A

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Nucleation and growth of α phase in hot extruded Ti–46.6Al–2Mo–1.4Mn intermetallic alloy produced by hot extrusion of elemental powders

Cited by 5 publications

References 19 publications

Parameters Optimization of γ-Ti-46.6Al-1.4Mn-2Mo Alloy by Hot-Pressing Sintering and its Microstructures

Parameters Optimization of γ-Ti-46.6Al-1.4Mn-2Mo Alloy by Hot-Pressing Sintering and its Microstructures

Carbon content driven high temperature γ-α2 interface modifications and stability in Ti–46Al–4Nb intermetallic alloy

Microstructure and mechanical properties of TiAl alloys produced by rapid heating and open die forging of blended elemental powder compacts

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