MICROSTRUCTURE EVOLUTION OF Ti44Al6Nb ALLOY DIRECTIONALLY SOLIDIFIED WITH COLD CRUCIBLE

2013 ◽  
Vol 49 (11) ◽  
pp. 1356
Author(s):  
Ruirun CHEN ◽  
Jichao WANG ◽  
Tengfei MA ◽  
Jingjie GUO ◽  
Hongsheng DING ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Cold Crucible ◽  
Directionally Solidified

Heat transfer and macrostructure formation of Nb containing TiAl alloy directionally solidified by square cold crucible

2013 ◽  
Vol 42 ◽  
pp. 184-191 ◽  
Author(s):  
Jieren Yang ◽  
Ruirun Chen ◽  
Hongsheng Ding ◽  
Jingjie Guo ◽  
Jiecai Han ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Tial Alloy ◽  
Cold Crucible ◽  
Directionally Solidified

Microstructure and compressive properties of directionally solidified Er-bearing TiAl alloy using cold crucible

2016 ◽  
Vol 99 ◽  
pp. 10-20 ◽  
Author(s):  
Qiang Wang ◽  
Hongsheng Ding ◽  
Hailong Zhang ◽  
Shiqiu Liu ◽  
Ruirun Chen ◽  
...  
Keyword(s):  
Tial Alloy ◽  
Cold Crucible ◽  
Directionally Solidified ◽  
Compressive Properties

Study of Solid/Liquid Interface of Ti46Al0.5W0.5Si Ingot Directionally Solidified by a Near-Rectangular Cold Crucible

2012 ◽  
Vol 472-475 ◽  
pp. 767-770
Author(s):  
Rui Run Chen ◽  
Jie Ren Yang ◽  
Hong Sheng Ding ◽  
Jing Jie Guo ◽  
Yan Qing Su ◽  
...  
Keyword(s):  
Temperature Distribution ◽  
Directional Solidification ◽  
Process Parameters ◽  
Electromagnetic Stirring ◽  
Cold Crucible ◽  
Interface Morphology ◽  
Directionally Solidified ◽  
Solid Liquid Interface ◽  
Solid Liquid ◽  
Future Work

In this study, Ti46Al0.5W0.5Si ingots were directionally solidified by a near-rectangular cold crucible under different process parameters. These process parameters include the electromagnetic stirring, the crucible configuration and the molten drop, all of them have important effect on the S/L interface. The effects of the parameters on the solid/liquid (S/L) interface morphology were investigated, and the mechanisms of the parameters influencing the S/L interface were discussed and revealed. Results showed that the typical S/L interface of the ingots was presented as a curved ‘W-type’ shape. The uneven temperature distribution in the front of the solidified interface is the main reason for a curved S/L interface. Further, the requirements for obtaining a planar S/L interface in the process of cold crucible directional solidification were given, which provided a guide for the future work.

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