Results 211 to 220 of about 2,793 (264)

Thermomechanical treatment of R18 steel

Metal Science and Heat Treatment, 1968
1. After HTTMT of high-speed steel R18 by the optimum method the bending strength is 440 kg/mm2; after the standard treatment is 250 kg/mm2. 2. Reduction of the deformation temperature leads to impoverishment of the solid solution in carbon and alloying elements, promotes the precipitation and coalescence of carbides, and sharply reduces
V. S. Tomsinskii, V. A. Nekrasov, V. A. Malygin, L. A. Vikhanskii   +3 more
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Anaerobic treatment of hemp thermomechanical pulping wastewater

Water Research, 1998
Abstract Biological treatment is an indispensable instrument for water management of non-wood pulp mills, either as internal measure or end of pipe. In this paper, anaerobic treatment of wastewaters derived from the thermomechanical pulping (TMP) of hemp (Cannabis sativa L.) is described.
Kortekaas, S., Wijngaarde, R., Klomp, J.W., Lettinga, G., Field, J.A.   +4 more
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Thermomechanical treatment of titanium alloys

Metal Science and Heat Treatment of Metals, 1962
1. The best results from TMT on alloy VTZ-1 are attained after deformation at 850° with subsequent tempering. 2. The mechanical properties of titanium alloys subjected to TMT, regardless of the operating conditions, are higher than if these alloys are subjected to heat treatment only, without deformation.
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Thermomechanical treatments of a 1050 pearlite steel

Metallurgical Transactions A, 1983
A study of the microstructures and mechanical properties of thermomechanically treated 1050 steel has been carried out. The materials were first transformed to fine and coarse lamellar pearlite structures. These samples were reduced 75 pct in thickness by cold rolling, then heat treated at 780 °C (up-quenching) or 650 °C (annealing) for different ...
L. J. Chen, T. W. Wu, H. C. Cheng
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Effect of thermomechanical treatment on fine structure

Metal Science and Heat Treatment, 1963
1. Thermomechanical treatment improves the mechanical characteristics because of a) decrease of the size of grains of the original γ-phase in steel and the grains of the β-phase in titanium alloys as well as the size of the martensite platelets; b) the change in the ratio of the phase components (for average values of plastic deformation the ...
A. P. Gulyaev, A. S. Shigarev
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Thermomechanical treatment of boring chisels

Metal Science and Heat Treatment, 1966
1. Thermomechanical treatment increases the working life of chisels by 20–30% in cutting quenched steel. 2. The optimum deformation temperature of the head of the chisel is 500° C. Cooling below 500°C decreases the ductility of the metal and leads to the formation of cracks during deformation. 3.
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Thermomechanical treatment of 2014 aluminium alloy

Materials Science and Technology, 1988
AbstractThe effect of thermomechanical treatment on the flow stress, fracture strain, structure, and precipitation behaviour of commercial grade 2014 aluminium alloy has been investigated. Specimens in the supersaturated and aged conditions were plastically deformed in torsion tests in the temperature range 293–493 k and strain rate range 2·8 ×10−3−2·5
J. Gronostajski, A. Tobota
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Production of isotropic materials by thermomechanical treatment

Soviet Materials Science, 1968
The general principles of thermomechanical treatment for ensuring isotropy of mechanical properties are discussed. The deformation conditions of isotropy are formulated, and an expression is derived for estimating the intensity of plastic deformation during the treatment which may consist of several cycles.
O. N. Romaniv, B. V. Kozak
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Subcritical thermomechanical treatments of eutectoid steel

Metal Science, 1983
AbstractThe kinetics of annealing of eutectoid steel which was 75% cold rolled and then annealed at temperatures of 400, 500, and 600°C have been examined using measurements of microhardness, X-ray textures and line broadening, scanning and transmission electron microscopy, and positron annihilation.
M. H. Chang, J. G. Byrne
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Thermomechanical treatment of starch

2006
Starch is used as a major component in many food and nonfood applications and determines the overall product properties to a large extent. It is therefore important to understand the effect of processing on starch. Many starch-based products are produced using a thermal as well as a mechanical treatment.
van der Goot, A.J., van den Einde, R.M.
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