Results 221 to 230 of about 36,806 (247)
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Hot-compression behavior of Al alloy 5182
Journal of Central South University, 2012Hot-compression of aluminum alloy 5182 was carried out on a Gleeble-1500 thermo-simulator at deformation temperature ranging from 350 °C to 500 °C and at strain rate from 0.01 s−1 to 10 s−1 with strain range from 0.7 to 1.9. The microstructures and macro-textures evolution under different conditions were investigated by polarized optical microscopy and
Jian-guo Tang +2 more
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Hot compression behavior of GZ31 magnesium alloy
Journal of Alloys and Compounds, 2015Abstract Hot deformation behavior of Mg–3Gd–1Zn (GZ31) magnesium alloy was studied by hot compression tests over the temperature range of 300–500 °C under strain rates of 0.0001–0.1 s −1 . This material exhibited typical broad single-peak dynamic recrystallization behavior followed by a gradual drop towards the steady state stress.
M. Roostaei +3 more
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Hot-Wire Response in Compressible Subsonic Flow
AIAA Journal, 2020A systematic investigation is carried out in order to determine the response of a constant-temperature hot-wire anemometer in compressible subsonic flow.
Fenella de Souza, Stavros Tavoularis
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Compressive creep of hot pressed silicon carbide
Materials Science and Engineering: A, 2010Abstract Silicon carbide has a good match of chemical, mechanical and thermal properties and therefore is considered an excellent structural ceramic for high temperature applications. The aim of the present work is compressive creep evaluation of liquid phase sintered silicon carbide with aluminum and rare earth oxide as sintering aids.
C.R.M. Silva +3 more
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Strain inhomogeneity in hot axisymmetric compression test
Materials Science and Technology, 2002The patterns of strain which occur in the axisymmetric compression test when it is used for the estimation of the structural changes occurring during hot working are analysed. The analysis is conducted by numerical (finite element viscoplastic) methods.
R. W. Evans, P. J. Scharning
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Compressive creep behavior of hot-pressed Mg1.96Al0.04Si0.97Bi0.03
Scripta Materialia, 2018Abstract The compressive creep behavior of hot-pressed Mg1.96Al0.04Si0.97Bi0.03, a promising thermoelectric material, is investigated at 500 °C. At stress levels between 81 and 212 MPa, dislocation creep with stress exponent n = 7.6 ± 0.3 is observed. No diffusional creep is observed, likely attributable to a dispersion of ~1 μm Bi-, Al-, and O- rich
Richard A. Michi +4 more
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Dynamical instability of hot and compressed nuclei
Nuclear Physics A, 1989Abstract The dynamical evolution of a hot and compressed nucleus is described by means of an extended liquid-drop model. Using only the continuity equation and the energy conservation we show that the system expands after a while. The possible global instabilities of the drop are studied by applying the general conditions of stability of dynamical ...
Ngo, C., Ngo, H., Leray, S., Spina, M.E.
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Biomass Fractionation by Hot Compressed Liquid Water
1993Samples of six woody and four herbaceous biomass species were washed with compressed, liquid water for 0 to 15 minutes at 200°–230°C. Between 40 and 60% of the sample mass was solubilized. In all cases, 100% of the hemicellulose was solubilized, of which 90% (on average) was recoverable as monomeric sugar.
William Shu-Lai Mok, Michael Jerry Antal
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Hot-Hole Streaming in Uniaxially Compressed Germanium
1996The streaming motion of charge carriers occurs in sufficiently strong electric field provided that the threshold scattering mechanism (e.g. optical-phonon emission) exists. It is the cyclic process consisted of scattering-free acceleration of holes up to the optical-phonon energy, emission of an optical phonon and the return to the region of small ...
I. V. Altukhov +3 more
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Temperature Maintenance of Hot Moist Compresses
The American Journal of Nursing, 1973openaire +2 more sources