Journal ArticleDOI
New γ-TiAl alloys containing Ni
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This article is published in Scripta Metallurgica Et Materialia.The article was published on 1992-09-15. It has received 6 citations till now.read more
Citations
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The sintering densification, microstructure and mechanical properties of gamma Ti–48Al–2Cr–2Nb alloy with a small addition of copper
TL;DR: In this paper, the effect of small additions of copper on the sintering densification, microstructure and mechanical properties of gamma Ti-48Al-2Cr-2Nb (in at% throughout).
Journal ArticleDOI
Microstructure evolution and tensile properties of conventional cast TiAl-based alloy with trace Ni addition
TL;DR: The microstructure evolution and tensile properties of Ti-48Al-2Cr-2Nb-0.25Ni alloy fabricated by the induction skull melting (ISM) process were investigated in this paper.
Journal ArticleDOI
The effect of a small addition of nickel on the sintering, sintered microstructure, and mechanical properties of Ti–45Al–5Nb–0.2C–0.2B alloy
Y. Xia,G. B. Schaffer,Ma Qian +2 more
TL;DR: In this article, the effect of a small addition of nickel (Ni) on the sintering, sintered microstructure, and mechanical properties of a Ti-45Al-5Nb-0.2C-1.25Ni alloy, compacted from pre-alloyed powder, was investigated.
Journal ArticleDOI
Effects of aluminum content and microstructure on tensile properties of TiAl alloys
T. Kumagai,M. Nakamura +1 more
TL;DR: 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 (
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Synthesis of Nanograined Ti-Al-Cr-Nb-X [X = Ni-P-Coated Graphite and Carbon] Intermetallic Matrix Composites by Mechanical Alloying
TL;DR: In this paper, the formation of TiAl (γ) and Ti3Al (α 2) phases were confirmed by x-ray diffraction after milling for 75h in case of graphite addition and 100h for carbon addition in the intermetallic matrix.
References
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Positive temperature dependence of the yield stress in TiAl L10 type superlattice intermetallic compound single crystals at 293–1273 K
TL;DR: In this paper, a floating zone method was used to obtain the fundamental knowledge on the plasticity of TiAl single crystals with five orientations and the yield stresses of all orientations tested show a positive temperature dependence similarly to most Ll2 type superlattice intermetallic compounds.
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Deformation of polysynthetically twinned crystals of TiAl with a nearly stoichiometric composition
TL;DR: In this paper, the authors show that the deformation behavior of polysynthetically twinned TiAl with a nearly stoichiometric composition depends strongly on the angle between the twin boundaries and the compression axis.
Journal ArticleDOI
Elastic constants, fault energies, and dislocation reactions in TiAl: A first-principles total-energy investigation
TL;DR: In this article, the elastic constants and shear fault energies of TiAl were analyzed and the anomalous temperature dependence of the flow stress was explained by the cross-slip-pinning and fault-dragging mechanisms.
Journal ArticleDOI
Stoichiometry effects on the deformation of binary TiAl alloys
Ernest L. Hall,Shyh-Chin Huang +1 more
TL;DR: In this article, the room temperature deformation behavior and microstructure of Ti 48 Al 52 and Ti 52 Al 48 alloys are compared and the possible reasons for the differences in micro-structure and mechanical behavior between these two alloys were discussed.
Journal ArticleDOI
Effect of rapid solidification and alloying addition on lattice distortion and atomic ordering in L1 0 tial alloys and their ternary alloys
TL;DR: In this article, the lattice parameters of binary and ternary L10 type titanium alloys were studied by X-ray diffractometer using the foils and their powders.
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