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to the inhomogeneous grain sizes.The grain boundary characters are similar,which is not the main factor related to their mechanical properties.When Ti is added,TiN forms above the liquidus,and large TiN particles......
to the shear force breaking down the dendrite arms. The solidus and liquidus temperatures of A356 alloy were 559.2 and 626.3 ℃, respectively, which were measured by differential scanning calorimetry(DSC......
temperature of the alloys and the γ′ solvus temperature decreased, respectively. However, the liquidus temperatures of the alloys had no obvious change. The microstructure of the as-cast alloys......
showed that with the B content increasing from 10 at.% to 15 at.%, the liquidus temperatures TL of the alloys decreased from 1498.5 to 1472.5 K; the solidus temperatures TS of them increased from 1353.2......
. The composition transformation of inclusions mainly occurred at the temperature between the liquidus and solidus of the linepipe steel. Inclusions were mainly Ca S-Al2O3-Mg O-(Ca O) in slab center......
of temperature and liquidus of 300 kA aluminum production cells REN Bi-jun1, 2, LI Jin-hong3, ZHANG Ting-an1 (1. School of Materials and Metallurgy, Northeast University, Shenyang 110004, China; 2... of the fuzzy rule and actor. The bath temperature, liquidus and anode effect were controlled by adjusting the AlF3 additions, aluminum tapping magnitude, cell voltage set-point and the alumina feeding......
of ultrasonic vibration temperature between the liquidus and solidus increases the solid volume fraction and average particle size. Increasing cooling rate increases the solid volume fraction and reduces.... Their results indicated that good semi-solid slurry of aluminum alloy could be obtained in a short time by applying ultrasonic vibration near its liquidus temperature, and a considerable improvement......
respectively to study its corresponding effect on interior energy transfer and the ingot microstructure and its mechanism. The results show that within the solidus-liquidus temperature, resonance effect of crystal caused by ultrasonic leads to effective refinement of solidification microstructure and a significant increase of cooling rate; while above the liquidus temperature, a minor decrease of cooling......
droplets depends on solidification rate, cooling medium and flight distance. When droplets collide with each other at temperatures between solidus and liquidus, the dendrites and grains are refined... function of temperature between the liquidus and solidus temperature and treated as a change of specific heat during solidification. For small droplets (diameter ≤ 1 mm) in flight, the effective heat......
was investigated, which was carried out both above and below the liquidus of the alloy, on the microstructure and properties of a Mg-Al-Ca alloy (AZ91D+2%Ca (mass fraction), named as AZX912). The results show..., and mechanically sheared by the pair of the screws before being transferred to the HPDC machine. The MCAST treatment can be carried out either above or below the liquidus temperature of the alloy. When......
