Results 271 to 280 of about 134,655 (313)

Calculation of the γ-TiAl Lattice Resistance

Strength of Materials, 2019
The dislocation width and lattice resistance (Peierls stress) of a γ-TiAl alloy are calculated by the density ratio method. The lattice resistance is shown to decrease with the dislocation width. The relationship between the Peierls stress and dislocation width variation is defined by theoretical derivation.
Feng, R.C., Li, L.L., Li, H.Y., Wang, Z.M., Zhu, Z.X.   +4 more
openaire   +2 more sources

TEM observation of the initial oxidation stages of TiAl and TiAl-O.2Zr

Materials at High Temperatures, 2000
AbstractCoupon specimens of TiAl and TiAl–0.2 mass%Zr (TiAl–Zr) were oxidised at 1273 K in O2 of 0.013 Pa for up to 28.8 ks. The oxidised layers were investigated by SEM and TEM equipped with EDS, and characterised by XRD, XPS, AES and EPMA. The oxidised layers formed on both specimens consist mainly of an outer α-Al2O3 scale and an inner Al-depleted ...
S. Taniguchi, S. Fujimoto, T. Katoh, T. Shibata   +3 more
openaire   +1 more source

?????????????????????????? ?????????????????????? ???????????????????????? ?????????????? ?????????????? ???? ???????????? ???????????????????????????? TiAl

2014
?????????????????????? ?????????????????????????? ?????????????????????? ?????????????????? ?? ???????????????????????? ?????????????? ???? ???????????? ???????????????????????????? TiAl. ?????????????? ?????????????? ????????????, ??????????, ?????????????????? ?? ?????????????????? ?????? ???? ?????????????? ????????????, ?????????????????? ?? ???????
openaire   +3 more sources

Interface Dislocations in TiAl

Materials Science Forum, 1998
The interfaces of lamellar structure in γ-phase TiAl are analysed. The misfit between 120° rotation domains with the ordered L1 0 lattice on the (111) plane, and the arrays of interface intrinsic dislocations observed by transmission electron microscopy are investigated.
Václav Paidar, S. Zghail, Alain Couret
openaire   +1 more source

Oxidation of TiAl intermetallic

Powder Metallurgy and Metal Ceramics, 2007
The oxidation kinetics of TiAl intermetallic at 500–900 °C in air is studied using a gravimetric method, and the phase composition of the scale is studied using an x-ray phase analysis. At t > 600 °C, the kinetics of oxidation is described by a parabolic equation. The oxides TiO2 (rutile), γ-Al2O3, α-Al2O3, Ti2O3 are found in the scale.
V. G. Chuprina, I. M. Shalya
openaire   +1 more source

Machining of γ-TiAl

Advanced Engineering Materials, 1999
Knowledge of the machining parameters for titanium aluminides of the type γ-TiAl is essential for the acceptance and application of this new heat-resistant light-weight material for high performance components in automobile and aircraft engines. This work evaluates drilling, turning, sawing, milling, electroerosion, grinding, and high-pressure water ...
E. Aust, H.-R. Niemann
openaire   +1 more source

???????????????? ?????????? ?????????????????? ???? ???????????????????????????????? ?????????????? TiAl, ???????????????????? ????????????????????-?????????????? ??????????????

2013
The results of investigation of influence of EB melting technology and different types of moulds and methods of casting on quality of cast billets from TiAl intermetallic compound are represented. The possibility of dense and homogeneous cast parts production are shown and conditions of realization of this possibility are formulated.
openaire   +1 more source

?????????????? ???????? ???? ?????????????????? ?? ???????????????????????? ???????????????? ?????????? ??-TiAl ??????????????

2017
Modification with boron of as-cast ??-TiAl alloys in the optimal concentration of O,15??? 0,25% (wt.) can improve their mechanical properties at temperatures up to 700 ??C was established.
openaire   +1 more source

∞tial

2021
openaire   +1 more source

Creep deformation of tial and tial + w alloys

Metallurgical Transactions A, 1983
Patrick L. Martin, Madan G. Mendiratta, Harry A. Lipsitt   +2 more
openaire   +1 more source