Results 241 to 250 of about 650,474 (282)
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Journal of Materials Engineering and Performance, 2002
One of the major problems during direct chill (DC) casting is hot tearing. These tears initiate during solidification of the alloy and may run through the entire ingot. To study the hot tearing mechanism, tensile tests were carried out in semisolid state and at low strain rates, and crack propagation was studied in situ by scanning electron microscopy (
W.M. Van Haaften +2 more
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One of the major problems during direct chill (DC) casting is hot tearing. These tears initiate during solidification of the alloy and may run through the entire ingot. To study the hot tearing mechanism, tensile tests were carried out in semisolid state and at low strain rates, and crack propagation was studied in situ by scanning electron microscopy (
W.M. Van Haaften +2 more
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The Hot Tearing of Lead Alloys
Canadian Metallurgical Quarterly, 1984AbstractHot tearing during solidification occurs when grains separate along residual liquid at a grain boundary due to local strains. Separation can occur at temperatures below the solidus due to solute segregation, the minimum temperature being related to T DB, the ductile-brittle transition temperature.
P. Ari-Gur, F. Weinberg
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Hot Tearing in Aluminium — Copper Alloys
2016For many aluminium alloys, hot tearing susceptibility follows a lambda curve relationship when hot tearing severity is plotted as a function of solute content. In the past, there has been some difficulty quantifying hot tearing. Traditional methods rely upon measuring electrical resistivity or the number and/or length of cracks in tests such as the ...
Viano, David +3 more
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International Journal of Cast Metals Research, 2000
To study the effect of strontium on hot tearing in 319 alloy, a special cast iron mould was made to produce a casting with “built-in” restraints that act to create tensile stresses along the length...
F. Paray, B. Kulunk, J. E. Gruzleski
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To study the effect of strontium on hot tearing in 319 alloy, a special cast iron mould was made to produce a casting with “built-in” restraints that act to create tensile stresses along the length...
F. Paray, B. Kulunk, J. E. Gruzleski
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Castability—Fluidity and Hot Tearing
2008AbstractCastability of alloys is a measure of their ability to be cast to a given shape with a given process without the formation of casting defects. This article describes the factors that limit fluidity as well as experimental methods for measuring fluidity of various alloys.
Lars Arnberg, Asbjørn Mo
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Assessment of Segregation in Hot Tear Cracks
steel research international, 2008In solidified slabs different types of segregations such as crystal segregation (micro segregation), centre segregation (macro segregation) and hot tear segregation (HTS) may occur. The present paper examines the segregation behaviour of different elements in hot tear cracks depending on the carbon content.
Hubert Preßlinger +3 more
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Cast Metals, 1990
SynopsisThe experimental results of the hot tearing of Al-Cu alloys carried out by several different investigators using different tests are summarised.
J. Campbell, T. W. Clyne
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SynopsisThe experimental results of the hot tearing of Al-Cu alloys carried out by several different investigators using different tests are summarised.
J. Campbell, T. W. Clyne
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The hot-tearing of copper alloys
1965A test and a rating method have been developed to assess the hot-tearing susceptibility of cast copper alloys. Thirteen alloys were rated, and, while the limitations of individual hot-tear tests are well known, it is considered that such a rating should serve as a general guide to enable foundrymen to select alloys with the best hot-tear resistance ...
A Couture, J O Edwards
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JOM, 1956
shows that the hot tearing tendency exists in a narrow temperature range and is primarily effected by the heterogeneous freezing point of the metal.
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shows that the hot tearing tendency exists in a narrow temperature range and is primarily effected by the heterogeneous freezing point of the metal.
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International Journal of Cast Metals Research, 2014
In this work, a new criterion for estimating hot tear susceptibility called overall hot tearing susceptibility (OHTS) is proposed to determine hot tearing tendency in the mould region during continuous casting. The OHTS criterion takes into account the cooling rate, brittle temperature range, strain rate and thickness of the brittle region.
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In this work, a new criterion for estimating hot tear susceptibility called overall hot tearing susceptibility (OHTS) is proposed to determine hot tearing tendency in the mould region during continuous casting. The OHTS criterion takes into account the cooling rate, brittle temperature range, strain rate and thickness of the brittle region.
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