Results 261 to 270 of about 317,446 (301)

Crystallization behaviour of Al85Y10Ni5 by isochronal and isothermal annealing

Acta Metallurgica et Materialia, 1991
Abstract Crystallization of Al 85 Y 10 Ni 5 by isochronal annealing showed a strong dependence on scan rate over the range of 0.9–20.7 K/min. At a scan rate of 0.9 K/min, crystallization of Al 85 Y 10 Ni 5 occurred by primary crystallization in a single step.
V. Kwong, Y.C. Koo, S.J. Thorpe, K.T. Aust   +3 more
openaire   +1 more source

Deformation and isothermal annealing behaviour of nickel

British Journal of Applied Physics, 1967
Isothermal annealing of cold-worked nickel produces softening which initially occurs exponentially but which is followed by a sigmoidal stage. A theory of isothermal softening behaviour, based upon polygonization of subgrains, is presented.
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Acceleration of final cooling of forgings in isothermal annealing

Metal Science and Heat Treatment, 1984
1. The temperature differential in a charge in final cooling of forgings is determined by the difference in cross sections of the forgings, the point of their location in the furnace, and the allowable specified rates and method of cooling. In the case of location of forgings with thin sections at the charging door in acceleration of the process of ...
V. S. Sheiko, A. V. Koval'chenko, V. P. Skripka   +2 more
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Isochronal and Isothermal Annealing of Wrought Aluminum Alloy

Defect and Diffusion Forum, 2011
Positron annihilation lifetime (PAL) is one of the most important nuclear techniques used in material science. Electrical measurements are also used in material science. Samples of 25 % deformation have been used for these studies. Both positron annihilation lifetime and electrical measurements were used to determined the activation energy of migration
M.A. Abdel-Rahman, N.A. Kamel, Abdullah A. Refeay, Yahia A. Lotfy, Emad A. Badawi   +4 more
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Isothermal Magnetic-Annealing Experiments on Substitutional Alloys

Journal of Applied Physics, 1967
Isothermal magnetic-annealing experiments were carried out by means of torque measurements on a Ni(Fe) alloy containing 16% Fe and on Fe(Si) alloys with concentrations between 2.7 and 7.9 at. %Si. The measured torques showed an approximate exponential time-dependence in approaching equilibrium.
O. S. Lutes, R. P. Ulmer
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Langmuir Isotherms of Quenched and Annealed Polyelectrolyte Brushes

Langmuir, 2000
We report here Langmuir isotherms of diblock copolymers containing a short neutral hydrophobic sequence (polystyrene) and a long water-soluble polyelectrolyte sequence (polyvinyl-2-pyridine). This study focuses on the polyelectrolyte sequence, which is a weak polyelectrolyte when unmodified and strong polyelectrolyte when quaternized.
C. Prinz, P. Muller, M. Maaloum
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Isothermal annealing of oxygen decorated defects in silver

Hyperfine Interactions, 1983
The dynamics of trapping and detrapping processes of oxygen decorated radiation defects in silver were investigated by the TDPAC technique. Three defect clusters containing In, oxygen and vacancies were studied by isothermal annelaing experiments between 250°C and 450°C.
H. Schröder, P. Wodniecki, W. Bolse, M. Uhrmacher, K. P. Lieb   +4 more
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Short-term isothermal annealing of polyethylene single crystals

Journal of Applied Physics, 1985
Polyethylene single-crystal mats 20 μm thick were heated to the annealing temperatures (120–132 °C) in less than 1 s. The Cornell High Energy Synchrotron Source (CHESS) and a TV detector system were used to obtain wide- and small-angle x-ray scattering patterns from these mats during annealing with a time resolution of 0.3 s.
David T. Grubb, J. Jui-Hsiang Liu
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Crystallization behaviour of metglass 2826A by isochronal and isothermal annealing

Acta Metallurgica, 1988
Abstract Crystallization of Metglass 2826A by isochronal annealing showed a strong dependence on scan rate over the range of 1.4–48.7 K/min. At scan rates less than 9.2 K/min, crystallization of Metglass 2826A occurred by primary crystallization in a two stage process leading to both MS-I and MS-II type phases.
S.J. Thorpe, B. Ramaswami, K.T. Aust
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Isothermal annealing of cold-rolled high-purity nickel

Materials Science and Engineering: A, 2008
Abstract Electron backscattered patterns have been employed to reveal the details of the texture evolution in 90%, 95% and 97.5% cold-rolled, polycrystalline, high-purity nickel specimens after 1 h anneals at a variety of temperatures. The results show that increasing the thickness reduction of cold-rolling both strengthened the cube texture ...
H. Chang, I. Baker
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