Results 231 to 240 of about 7,886 (260)

Influence of titanium on hot ductility of as cast steels

Materials Science and Technology, 1991
The influence on hot ductility of a small addition (0·02%) of titanium to C–Mn–Al–Nb steel and 0·05/0·15%C–Mn–Al steels has been examined over the temperature range 700–1100°C and at a strain rate ...
R. Abushosha, R. Vipond, B. Mintz
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HOT DUCTILITY OF MICROALLOYED STEELS

2008
The loss in ductility experienced by microalloyed steels at temperatures generally ranging from 700 to 1100°C is a widely studied subject in steel research. The hot ductility behaviour of steels is usually measured through the reduction of area of the samples after hot tensile tests performed up to fracture.
VEDANI, MAURIZIO, D. Ripamonti, A. Mannucci, DELLASEGA, DAVID   +3 more
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Hot ductility of wrought 90Cu–10Ni alloy

Materials Science and Technology, 1988
AbstractThe ductility of a wrought 90Cu–10Ni alloy was investigated by tensile testing over a range of temperatures and for materials of different initial grain sizes. Ductilities were found to vary in a complex manner with temperature and grain size, but at all temperatures above 650 K failure occurred by grain boundary cavitation; good ductilities ...
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Effect of Al2O3 inclusions on the hot ductility of nickel

Metal Science and Heat Treatment, 1973
1. Inclusions of Al2O3 in amounts up to 0.2%, evenly distributed in nickel, have a negligible effect on the hot ductility of nickel in torsion tests. 2. With 0.5% Al2O3 the ductility decreases greatly due to the formation of clusters of Al2O3.
Z. V. Barantseva, M. I. Vinograd, G. P. Gromova, I. A. Pavperova   +3 more
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Hot Working of Ductile Iron Alloyed With Molybdenum

Canadian Metallurgical Quarterly, 2000
On a forme a chaud, a 1050 °C, des moulages de fonte nodulaire contenant jusqu'a 0,5% de Mo, provenant de moules en sable et de moules permanents (SMC & PMC), avec reduction totale allant jusqu'a 90%. On a pu laminer la plupart des moulages avec une grande reduction par passe (36% en moyenne), jusqu'a une reduction totale de 75%, sans fissure serieuse,
H. Nasr El-Din, A. Nofal, A. Ismail
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Influence of phosphorus on the hot ductility of 2.25Cr1Mo steel

Materials Science and Technology, 2003
AbstractThe effect of phosphorus at two levels (0.01 and 0.06 wt-%) on the hot ductility of 2.25Cr1Mo steel has been investigated over the temperature range 700-1200 °C using a Gleeble machine. Auger electron spectroscopy indicated that phosphorus segregation to austenite grain boundaries had occurred in the higher phosphorus steel.
A.-M. Guo, Y.-H. Wang, D.-D. Shen, Z.-X. Yuan, S.-H. Song   +4 more
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Hot ductility behavior of vanadium containing steels

Materials Science and Engineering: A, 2002
Abstract The hot ductility of four plain carbon steels containing different levels of V have been obtained after solution treating at 1330 °C, cooling to test temperatures in the range 700–1000 °C, and testing at a strain rate of 3×10−3 s−1. The obtained ductility troughs were compared with that obtained from Nb containing steel.
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Influence of test direction on hot ductility of austenite

Materials Science and Technology, 1988
Abstract The influence of test direction on the hot ductility of a hot worked high S steel (0·15%S) has been examined over the temperature range 700–1100°C and for strain rates 3·3 × 10−4 and 1·3 %times; 10−2 s−1. As with room temperature tensile testing, ductility was lowest in the short transverse direction and greatest in the longitudinal direction.
B. Mintz, Z. Mohamed
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Influence of inclusions on hot ductility of Fe-25Ni

Metals Technology, 1976
AbstractHot-workability tests have been conducted on an Fe-25Ni alloy, which dynamically recrystallizes during testing, to determine the effect of hard oxide inclusions on the ductility. Four different inclusion distributions have been studied and it has been established that for all these distributions ductility increases as strain rate increases and ...
M. D. Coward, G. J. Richardson, C. M. Sellars   +2 more
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Hot ductility of austenitic Fe-Ni alloys

Metals Technology, 1976
AbstractThe hot ductility of a range of Fe-Ni alloys was investigated by hot tensile testing the materials in the austenitic condition. The ductility of the alloys varied in a complex manner with composition, temperature, and strain rate. The mechanism of failure was studied in a 36% Ni alloy by metallographic examination.
R. W. Evans, F. L. Jones
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