Journal ArticleDOI
Hot pack rolling nearly lamellar Ti-44Al-8Nb-(W, B, Y) alloy with different rolling reductions: Lamellar colonies evolution and tensile properties
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TLDR
In this article, the relationship of the microstructure and tensile properties between the rolling conditions was investigated by fabricating Ti-44Al-8Nb-(W, B, Y) alloy sheets under different rolling conditions.About:
This article is published in Materials & Design.The article was published on 2017-05-05. It has received 58 citations till now. The article focuses on the topics: Lamellar structure & Y alloy.read more
Citations
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Experimental study and numerical simulation of dynamic recrystallization behavior of TiAl-based alloy
TL;DR: In this article, an Avrami-type equation was used to investigate the dynamic recrystallization (DRX) behavior of a TiAl-based alloy during hot compression tests.
Journal ArticleDOI
Evaluation of the hot workability and deformation mechanisms for a metastable beta titanium alloy prepared from powder
TL;DR: In this paper, the hot workability and deformation mechanisms of powder metallurgy (PM) metastable beta titanium alloys are investigated using thermal physical simulation using the Gleeble®-3800 simulator.
Journal ArticleDOI
Dynamic recrystallization and hot processing map of Ti-48Al-2Cr-2Nb alloy during the hot deformation
TL;DR: In this article, the deformed microstructure showed that in addition to the discontinuous dynamic recrystallization (DDRX) with the typical feature of grain nucleation and growth, continuous DRX characterised by the crystal orientation accumulation also appeared in γ grains during the hot compression at 1200°C/0.01 s−1.
Journal ArticleDOI
Dynamic recrystallization mechanism of γ and α phases during the isothermal compression of γ-TiAl alloy with duplex structure
R.R. Xu,H. Li,Mingxing Li +2 more
TL;DR: In this paper, the dynamic recrystallization (DRX) mechanism of Ti-4289Al-459Nb-201Cr-025Cu-01Fe-059Si-007W-0004Se with duplex structure was investigated via electron backscatter diffraction (EBSD) when isothermal compression were conducted at the deformation temperatures of 1100-1250°C, strain rates of 0001-001 s−1 and height reductions of 20%-50%.
Journal ArticleDOI
Design and control of microstructure and texture by thermomechanical processing of a multi-phase TiAl alloy
Petra Erdely,Peter Staron,Emad Maawad,Norbert Schell,Joachim Klose,Helmut Clemens,Svea Mayer +6 more
TL;DR: In this article, the impact of each proposed processing stage on a β-solidifying, multi-phase Ti-43.5Al-4Nb-1Mo-0.1B (in at.-%) alloy was explored.
References
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Polysynthetic twinned TiAl single crystals for high-temperature applications
TL;DR: It is reported that Ti-45Al-8Nb single crystals with controlled lamellar orientations can be fabricated by directional solidification without the use of complex seeding methods, and could provide expanded opportunities for higher-temperature applications, such as in aeronautics and aerospace.
Journal ArticleDOI
Modeling concepts for intermetallic titanium aluminides
TL;DR: In this article, a selection of such models is introduced and explained in a comprehensive way, and several experimental approaches that could characterize the relevant deformation mechanisms are described that could be used to describe thermomechanically controlled processes.
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A newly developed hot worked TiAl alloy for blades and structural components
TL;DR: A new TiAl alloy has been developed, with a composition of Ti-42Al-5Mn (at%). The manufacturing process employs a conventional hot working, in which the cast ingot is heated to the β+α region, subsequently forged or rolled during cooling.
Journal ArticleDOI
Effect of strain rate on microstructure evolution of a nickel-based superalloy during hot deformation
TL;DR: In this paper, the effect of strain rate on the microstructure evolution of a nickel-based superalloy was investigated by means of isothermal compression tests in the strain rate range of 0.001 − 10 − 1 at 1110 −C.
Journal ArticleDOI
Recovery, recrystallization and phase transformations during thermomechanical processing and treatment of TiAl-based alloys
TL;DR: In this article, the conversion of the cast microstructure of a Ti-45Al-10Nb ingot due to extrusion and subsequent heat treatments was investigated using scanning and transmission electron microscopy.
Related Papers (5)
Design, Processing, Microstructure, Properties, and Applications of Advanced Intermetallic TiAl Alloys†
Helmut Clemens,Svea Mayer +1 more