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[J]. Mater Sci Eng A, 2002, 329/331: 19-24. [2] FU Heng-zhi, GUO Jing-jie, SU Yan-qing, LIU Lin, XU Da-ming, LI Jin-shan. Directional solidification and lamellar orientation control of TiAl... crystal orientation first and then let the subsequent solidification (usually directional solidification(DS)) of the ingot develop directly from the seed and keep the orientation of the grains in the seed......
mm/min, the quantity of grains reduces, the grain orientation degree becomes small, and the solidification fronts change from concave to plane to convex. The ingot can be directional solidified... solidification is realized. Cold crucible continuous casting and directional solidification can realize high pure melting in rapid speed, control the structure and the shape, shorten times and save energy......
[3-4]. However, it is difficult to control the lamellar orientation by simple casting operations. In order to overcome this difficulty, directional solidification has been developed to produce columnar grain material with the lamellar orientation parallel to the growth direction [4-6]. Recently, several refractory materials have been used as mould in directional solidification to produce TiAl alloys......
between the solid/liquid interface and the crystal orientation for pure magnesium, which grows in fashion of cellular crystal in unidirectional solidification, was investigated. The results show... and crystal orientation was also investigated. 2 Relationship between growth direction and crystal orientation Cellular or dendritic crystal can be obtained through unidirectional solidification. KURZ......
and approaches to [100] gradually during the growth process. Key words: high purity aluminum; competitive growth; directional growth; lattice orientation 1 Introduction The crystal properties are determined by grain morphology and lattice orientation in directional solidification[1]. For the refinement of high purity aluminum by directional solidification, the single crystal is of great advantage......
this preferred orientation. It is found that as directional solidification continues, the crystals with high growth speed remain and those with low growth speed vanish. The crystal preferred orientation tends... Crystal preferential orientation of Al-1.0%Si alloy in continuous unidirectional solidification process ZHANG Hong(张 鸿)1, WANG Zi-dong(王自东)1, XIE Jian-xin(谢建新)1, CHEN Ya-jun(陈亚军)2, WANG Ying-wei......
, GUO Jing-jie, SU Yan-qing, et al. Directional solidification and lamellar orientation control of TiAl intermetallics[J]. The Chinese Journal of Nonferrous Metals, 2003, 13(4): 797-810. [4] Boettinger W...TiAl合金在不同凝固条件下可能形成的相与组织形态. 在所选的合金成分范围内定向实验所得的凝固组织与计算预测的组织选择图有较好的一致性. 关键词: TiAl包晶合金; 定向凝固; 组织选择 中图分类号: TG114. 2 文献标识码: A Directional solidification and microstructure selection for Ti-Al peritectic......
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: Table 3 Angles deviated from preferred orientation [001] of samples 1–6 4 Conclusions Using the directional solidification method and the spiral grain selector, the single crystal ingot and blades... J. Cent. South Univ. (2018) 25: 1-8 DOI: https://doi.org/10.1007/s11771-018-3711-1 Effects of directional solidification parameters and crystal selector on microstructure of single crystal of Ni......