On macrosegregation
Web1 de jul. de 2024 · Macrosegregation behaviour of the remelted product is now numerically investigated. Particular attention is paid to the influence of the thermophysical properties … WebMacrosegregation. C. Beckermann, in Encyclopedia of Materials: Science and Technology, 2001 4 Conclusions. Modeling of macrosegregation in castings and ingots has made …
On macrosegregation
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Web1 de dez. de 2008 · Macrosegregation in direct chill (DC) continuous casting of an Al-4.5 wt pct Cu round ingot is numerically simulated. The model incorporates descriptions of heat … Web21 de fev. de 2024 · Macrosegregation is one of the most significant defects which exert a determining effect on the properties of heavy ingots. The objective of this work is to study the influence of segregated ...
Web1 de jul. de 2003 · Request PDF The effect of grain refining on macrosegregation and dendrite arm spacing of direct chill cast AA5182 The effect of titanium and titanium diboride inoculation on the spatial ... WebNumerical simulation of effect of thermo-solutal flow on macrosegregation in continuously cast slabs. / Oikawa, Katsunari; Hirata, Naoya; Anzai, Koichi. In: Tetsu-To-Hagane/Journal of the Iron and Steel Institute of Japan, Vol. 103, No. 12, 2024, p. 747-754. Research output: Contribution to journal › Article › peer-review
Webmacrosegregation (uncountable) A variation in the composition of a metal casting caused by irregular movement during solidification; Translations Web1 de mar. de 2000 · Macrosegregation in DC cast ingots produces non-uniform mechanical properties [1], significantly impacts structural homogeneity in the finished product [2], and seriously constrains the size, alloy composition, and rate at …
WebThis is possible because the distances involved (typically on the order of 10 to 100 μm) are sufficiently small for diffusion to be a significant mechanism. This is not the case in macrosegregation. Therefore, …
Webobtain the predicted maximum carbon content and represent the macrosegregation degree along the cast-ing direction in continuous casting billets (represented by 82B cord steel). … husked coconutThe most economical way to produce bronze alloys is vertical, semi-continuous casting: The melt is poured from a tundish directly into a cylindrical or rectangular mold via several inlet gates, and then pulled downward. After the strong heat extraction by the water-cooled mold (primary cooling) further … Ver mais DC-casting of aluminum-based alloys is comparable with the DC-casting of bronze (Figure 7(a)). The two main differences are as follows: First, aluminum-based alloys are usually cast … Ver mais Industrial practice has shown that macrosegregation can also be found in continuously cast steel strands. A typical segregation profile … Ver mais Most of the empirical knowledge on macrosegregation in steel ingots was built early in the last century.[38–44] As full-scale trials were (and still are) extremely costly, the first … Ver mais maryland sb nationWeb1 de jun. de 2014 · Macrosegregation. Macrosegregation is the redistribution of solute elements on a larger scale. In net-shaped castings this is caused by the motion of fluid inside the casting and usually is related to feeding. Macrosegregation is most easily seen in copper-containing alloys. An example is shown in Fig. 4. maryland sb890maryland sbdc frederick countyWebphenomena. Segregation also is subdivided into macrosegregation and microsegregation . The topic has been r eviewed in books dealing with solidification, and in this work some of them have been used extensively (Flemings 1974; Ghosh 1990). Some review papers are also available (Moore 1984; Ohnaka 1988; Flemings 1990; Roy et al 1992; Ghosh 1997). husk downtown charleston scWeb1 de fev. de 2024 · The experiment–simulation comparison of macrosegregation is presented in Fig. 5. The macrosegregation is characterized by its index (c index = (c … maryland sbr applicationWeb1 de mar. de 2000 · Macrosegregation now depends on the transport of copper-depleted, free-floating dendrites, as well as copper-rich liquid. Solid fraction contours, mixture streamlines, and temperature contours for Cases 2 and 3 are shown in Fig. 5, Fig. 6, Fig. 7, respectively, 600 s after the simulations have reached their quasi-steady state. marylands best sheds photos