Results 251 to 260 of about 10,967 (293)
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Canadian Metallurgical Quarterly, 2001
AbstractFour tool steels (A2, D2, M2 and W1) representing a wide variety of compositions (and carbide content) were hot deformed in torsion between 900 and 1200 °C at strain rates of 0.1, 1 and 4 s−1. Carbides contribute to an increase in strength but to a lower ductility.
C.A.C. Imbert, H.J. McQueen
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AbstractFour tool steels (A2, D2, M2 and W1) representing a wide variety of compositions (and carbide content) were hot deformed in torsion between 900 and 1200 °C at strain rates of 0.1, 1 and 4 s−1. Carbides contribute to an increase in strength but to a lower ductility.
C.A.C. Imbert, H.J. McQueen
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Ductility of Microalloyed Steels during Hot Deformation
Materials Science Forum, 2010The ductility behaviour experienced by steels for linepipe (LP) applications in a temperature range generally from 700°C to 1200°C is a widely studied subject in steel research, especially for its implication on cracking during continuous casting and rolling.
A. Mannucci +3 more
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Improving hot-ductility of 310 stainless
JOM, 1957Under some conditions of manufacture, austenitic stainless steels exhibit a tendency to hot-crack during fabrication. Hot-cracking has been observed in casting, heating for working, ingot breakdown, hot-rolling, tube-piercing, and other hot-forming operations. It has been particularly troublesome in both the weld and heat-affected zones of welded heavy
R. A. Perkins, W. O. Binder
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Fracture and ductility in hot torsion of Nickel
Metallurgical Transactions, 1971Fracture of Nickel 270 under conditions of warm working and hot working was studied using a hot torsion testing device. Under all conditions, fracture initiates as wedge-type cracks at the peak on the torque-twist curve. A hot fracture initiation criterion is proposed based on the initial deformation conditions.
E. Shapiro, G. E. Dieter
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Influence of carbon on hot ductility of steels
Materials Science and Technology, 1986AbstractHot ductility, measured by reduction in area, has been determined over the temperature range 550–950°C for a series of plain C–Mn steels having the same base composition except for the carbon content, which was in the range 0·04–0·65 wt-%. A ductility trough was obtained for all the steels and minimum ductility values were similar.
D. N. Crowther, B. Mintz
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Boring a Hot Trend with Ductile‐Iron
Opflow, 2003This article reports that the Orlando Utilities Commission (OUC) has found success using conventional bell‐spigot and “bell‐less” ductile‐iron pipe joints for installation by trenchless methods. Due to a proactive pipeline renewal and replacement program, OUC has investigated various trenchless methods to install new transmission and distribution lines,
Kathleen Carnes +2 more
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Causes of the hot ductility drops of steels
Russian Metallurgy (Metally), 2014The effect of conditions of continuous casting and hot rolling of steel on the high-temperature ductility of a microalloyed pipe steel of strength class Kh42 and 17G1S-U steel is studied. A Gleeble-3800 thermomechanical facility is used to perform physical modeling of the hot ductility of steel.
N. G. Kolbasnikov +4 more
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Metal Science and Heat Treatment, 2009
Hot ductility of steel 09G2S is studied in a temperature range of 600 – 1000°C on the branch of cooling after heating to a high (1150°C) temperature. The causes of the nonmonotonic variation of the hot ductility are determined, and ways for removing the ductility dip are suggested.
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Hot ductility of steel 09G2S is studied in a temperature range of 600 – 1000°C on the branch of cooling after heating to a high (1150°C) temperature. The causes of the nonmonotonic variation of the hot ductility are determined, and ways for removing the ductility dip are suggested.
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Influence of calcium on hot ductility of steels
Materials Science and Technology, 1989AbstractThe hot ductility of C–Mn–Al and C–Mn–Nb–Al steels with and without calcium additions have been examined over the temperature range 700–1000°C both after solution treating at 1330°C followed by cooling to the test temperature and directly after casting. Calcium additions invariably improved hot ductility. For hot rolled plate reheated to 1330°C
B. Mintz, Z. Mohamed, R. Abu-shosha
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Hot Ductility of DSS and Its Microstructure Observation During Hot Deformation
Journal of Iron and Steel Research International, 2013Abstract By selecting several typical duplex stainless steels (DSS), i. e., 00Cr22Ni5Mo3N, 00Cr21Ni2Mn5N and 00Cr25Ni7Mo4N, as research materials, hot ductility characteristic of DSS was studied by thermal simulation method and microstructure evolution during hot compression was observed through TEM.
Zhi-gang Song +5 more
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