Journal ArticleDOI
Effects of aluminum content and microstructure on tensile properties of TiAl alloys
T. Kumagai,M. Nakamura +1 more
TLDR
In this paper, the effect of microstructure on the room temperature tensile properties of polycrystalline Ti-49 and 51A1 alloys were investigated in vacuum, where aging in the γ single-and γ + α two-phase fields, followed by air cooling or controlled cooling (5K/min), results in three types of microstructures: type (I), equiaxed γ grain structure, type (II), γgrain structure with α 2 γ laths formed mainly at the ǫ grain boundaries, and type (About:
This article is published in Scripta Materialia.The article was published on 1996-04-01. It has received 16 citations till now. The article focuses on the topics: Grain boundary & Grain size.read more
Citations
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Journal ArticleDOI
Phase transitions and compression properties of Ti2AlC/TiAl composites fabricated by combustion synthesis reaction
TL;DR: In this paper, the phase transitions in the TiAl and the Ti-Al-C/TiAl systems are investigated by the differential thermal analysis (DTA) and X-ray diffraction (XRD).
Journal ArticleDOI
Effect of MoO3 on microstructure and mechanical properties of (Ti,Mo)Al/Al2O3 composites by in situ reactive hot pressing
TL;DR: In this article, the effect of MoO 3 content on the microstructure and mechanical properties of (Ti,Mo)Al/Al 2 O 3 composites was investigated in detail.
Journal ArticleDOI
Study of effect of Mn addition on the mechanical properties of Ti2AlC/TiAl composites through first principles study and experimental investigation
TL;DR: In this article, the effect of Mn atoms on the mechanical properties of the Ti2AlC/TiAl composites was investigated by experiments and first principles calculations, and the results showed that the addition of Mn remarkably improves the ductility of the composites.
Journal ArticleDOI
Compression properties and work-hardening behavior of Ti2AlC/TiAl composites fabricated by combustion synthesis and hot press consolidation in the Ti–Al–Nb–C system
TL;DR: In this article, the effect of the (Nb-C) content on the compression properties and work-hardening behavior of the composites has been investigated and it was shown that the TiAl alloy improved remarkably with the addition of the Nb−C elements due to the formation of Ti 2 AlC particles and the solid solution of Nb in the Ti-Al matrix.
Journal ArticleDOI
Fabrication and characterization of in-situ TiAl matrix composite with controlled microlaminated architecture based on SiC/Al and Ti system
TL;DR: In this paper, the phase transitions and reaction mechanisms at various annealing stages were investigated for microlaminated composite sheets consisting of alternating TiAl and carbide-layers.
References
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Journal ArticleDOI
Effects of third elements on the structures of TiAl-based alloys
Journal ArticleDOI
Environmental effect on mechanical properties of TiAl base alloys
TL;DR: In this article, the mechanical properties of TiAl base alloys were studied with three-point bending tests in vacuum, air, and gaseous hydrogen, and it was shown that plastic deformation plays an important role in environmental embrittlement.
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Microstructural evolution and tensile properties of titanium-rich TiAl alloy
TL;DR: Several different heat treatments using α-Ti/γ-TiAl phase transformation were employed to a polycrystalline Ti48at alloy as mentioned in this paper, which exhibits a nearly lamellar structure and the heat treatments in the α+γ two-phase field result in four types of microstructure.
Journal ArticleDOI
Environmental effect on room- temperature ductility of isothermally forged tial- base alloys
TL;DR: In this article, isothermally forged TiAl-base alloys (Al-rich, Mn-containing, and Cr-containing TiAl) were heat-treated in various conditions, and equiaxed grain structures consisting of γ and α2 or Β phases were obtained.