Results 271 to 280 of about 33,673 (310)

DRILLING OF INTERMETALLIC ALLOYS GAMMA TIAL

AIP Conference Proceedings, 2011
Due to their high strength/weight ratio and resistance to corrosion and wear, superalloys such as gamma TiAl or Inconel 718 appear as the best choice for the high mechanical/thermal demands in the vicinity of the combustion chamber of aircraft engines.
A. Beranoagirre, D. Olvera, L. N. López de Lacalle, G. Urbicain, Francisco Chinesta, Yvan Chastel, Mohamed El Mansori   +6 more
openaire   +1 more source

Twinned Dendrites in Tial Alloys

Materials Characterization, 2023
Fu qiang Zhang, Yi Song, Gengwu Ge, Leming Xu, Xianfei Ding, Jianping He, Yongfeng Liang, Junpin Lin   +7 more
openaire   +2 more sources

Characterization of laser-deposited TiAl alloys

Scripta Materialia, 2001
Microstructure of TiAl produced by Laser Engineered Net Shaping (LENS) has been characterized using optical microscopy, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). It has been shown that the substrate has a significant effect on the microstructure deposited. Depending on operational parameters, either equiaxed {gamma}-
X.D Zhang, C Brice, D.W Mahaffey, H Zhang, K Schwendner, D.J Evans, H.L Fraser   +6 more
openaire   +1 more source

Carbide precipitation in γ-TiAl alloys

Scripta Metallurgica et Materialia, 1992
Carbide precipitation in gamma-TiAl is observed and found to involve the formation of coherent, rod-shaped perovskite precipitates as a metastable transition phase. At temperatures above 750 deg C, the formation of plate-shaped H-phase particles on dislocations and grain boundaries is accompanied by dissolution of the perovskite precipitate dispersions.
S. Chen, P.A. Beaven, R. Wagner
openaire   +1 more source

8.5Nb–TiAl alloy with fine grains

Journal of Alloys and Compounds, 2003
Abstract One 8.5Nb–TiAl-based alloy, whose nominal chemical composition is Ti–45Al–8.5Nb–0.3W–0.3B–0.05Y at% (TAWBY) was presented, including various annealing treatments after cladding insulting forged with homogeneous microstructures. This alloy was developed as cast grains with the size of 25 μm whereas the β (B2) phase exists in TAWBY alloy.
Y.Q Yan, L Zhou, W.S Wang, Y.N Zhang
openaire   +1 more source

Plasticity of γ-TiAl alloys

2018
Gamma titanium aluminide alloys are emerging as a lightweight replacement to nickel superalloys, with current application in turbine stages of aero-engines, as well as in high performance automobiles and potentially the nuclear industry. The lack of toughness of its two constitutive intermetallic phases, γ-TiAl and α2-Ti3Al, prevents a conventional ...
openaire   +1 more source

Fatigue deformation of TiAl base alloys

Metallurgical Transactions A, 1977
The fatigue behavior of Ti-36.3 wt pct Al and Ti-36.2 wt pct Al-4.65 wt pct Nb alloys was studied in the temperature range room temperature to 900°C. The microstructures of the alloys tested consisted predominantly of γ phase (TiAl) with a small volume fraction of γ phase (Ti3Al) distributed in lamellar form.
S. M. L. Sastry, H. A. Lipsitt
openaire   +1 more source

Phase transformations in TiAl based alloys

Acta Materialia, 2005
Microstructural characteristics of a fully lamellar Ti49Al47Cr2Nb2 alloy have been investigated in different annealed conditions by quantitative transmission electron microscopy. Statistical analyses have yielded clear information about the γ–γ interfaces, the respective orientation groups of the γ phase, and the distribution of orientational variants.
Slim Zghal, Marc Thomas, Shigehisa Naka, Alphonse Finel, Alain Couret   +4 more
openaire   +1 more source

Mechanical behavior of TiAl alloys

Science China Technological Sciences, 2023
HengGao Xiang, Yang Chen, ZhiXiang Qi, Gong Zheng, FengRui Chen, YueDe Cao, Xu Liu, Bing Zhou, Guang Chen   +8 more
openaire   +1 more source

Strengthening in gradient TiAl alloys

Journal of Materials Science & Technology, 2023
P. Li, Y. Chen, X. Liu, X.H. Wang, F.R. Chen, Z.X. Qi, G. Zheng, H.G. Xiang, G. Chen   +8 more
openaire   +1 more source