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In this study, a Ti-45Al-2Cr-2Nb alloy was directionally solidified by electromagnetic cold crucible zone melting technology with Y2O3 moulds, and the effects of growth rate and heating power on microstructural evolution and tensile properties were investigated. In the directionally solidified regions, microstructures were mainly composed of well-aligned α2/γ lamellae and B2 phases as well as Y2O3...
Hot melt splashes often take place during electromagnetic casting silicon, which break the stable pulling process and endanger the safety of equipments in the vacuum chamber. Investigations are carried out to analyze the causes of melt splashes and put forward measures to prevent the happening of them. Pores with different sizes are observed in perpendicular sections of the left ingots, their surface...
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