Results 211 to 220 of about 5,447 (260)

Mechanically robust eutectogels enabled by precisely engineered crystalline domains. [PDF]

open access: yesNat Commun
Jiang Y   +6 more
europepmc   +1 more source

A Review on Hot Tearing of Steels

International Journal of Metalcasting, 2021
Hot tearing is a common solidification defect in both continuous cast steels and foundry shaped castings, which has a significant impact on the quality of the final products. It is a complex phenomenon that involves both the thermal and mechanical conditions and chemical element segregation that evolves during casting process.
Yanru Lu   +2 more
openaire   +1 more source

Hot Tearing Studies in AA5182

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
openaire   +1 more source

The Hot Tearing of Lead Alloys

Canadian Metallurgical Quarterly, 1984
AbstractHot 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
openaire   +1 more source

Hot tearing in 319 alloy

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
openaire   +1 more source

Hot Tearing in Aluminium — Copper Alloys

2016
For 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
openaire   +4 more sources

Castability—Fluidity and Hot Tearing

2008
AbstractCastability 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
openaire   +1 more source

Assessment of Segregation in Hot Tear Cracks

steel research international, 2008
In 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
openaire   +1 more source

The hot-tearing of copper alloys

1965
A 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
openaire   +1 more source

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