Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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Transactions of Nonferrous Metals Society of China

Vol. 19    No. 2    April 2009

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Feasibility of integrated seed making and directional solidification of TiAl alloy using cold crucible
ZHANG Cheng-jun(张成军)1, 2, FU Heng-zhi(傅恒志)1, XU Da-ming(徐达鸣)1,
GUO Jing-jie(郭景杰)1, BI Wei-sheng(毕维生)1, SU Yan-qing(苏彦庆)<

1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China;
2. College of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China

Abstract: A new seed making method with cold crucible by power off technique was proposed. The cold crucible quenched seed with columnar structure has a similar cross-section shape as that of the cold crucible, and can be directly used for the directional solidification processes. The proposed method can significantly simplify the seeded directional solidification process and avoid the contamination from the seed machining.


Key words: Ti alloy; seed making; crystal growth; cold crucible; directional solidification

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

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