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- W2386075175 abstract "Thermal analysis and micro/macro-structure observation were employed to investigate the effect of addition of misch metal(MM)on eutectic solidification of Al-13%Si alloy modified with strontium. It was found that small amount of MM addition(0.2%)would result in a considerable decrease in characteristic temperatures, TN(noticeable eutectic-nucleation temperature), TM(the lowest temperature prior to recalescence)and TG(the eutectic growth temperature), during cooling of alloy melt, and with further increase in addition amount of MM, these temperatures on the contrary would increase, closed to that of only Sr-modified alloy. When addition amount of MM was 0.2%, the remarkable decrease of TG caused a further refinement of eutectic Si, while, with more addition of MM(0.5%, 1.0%), the rise in TG led to coarsening of eutectic Si. Thermal analysis and macrostructure observation indicated that small amount of MM addition in Sr-modified Al-13%Si alloy further removed the heterogeneous sites for eutectic nucleation, and hence resulted in the considerable reduction of TN, therefore the eutectic solidification mode was not altered. However, more addition of MM was thought to introduce some new heterogeneous nucleation sites, and thus TN was raised up again and independent eutectic nucleation behavior was observed in the inner part of castings, so the eutectic solidification mode was obviously changed." @default.
- W2386075175 created "2016-06-24" @default.
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- W2386075175 date "2009-01-01" @default.
- W2386075175 modified "2023-09-22" @default.
- W2386075175 title "Effect of Misch Metal Addition on Eutectic Solidification of Al-13%Si Alloy Modified With Strontium" @default.
- W2386075175 hasPublicationYear "2009" @default.
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