Magnetic field in a near-rectangular cold crucible designed for continuously melting and directionally solidifying TiAl alloys

2012 ◽  
Vol 212 (9) ◽  
pp. 1934-1940 ◽  
Author(s):  
Ruirun Chen ◽  
Jieren Yang ◽  
Hongsheng Ding ◽  
Feng Huang ◽  
Yanqing Su ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Cold Crucible ◽  
Tial Alloys

Efficient Melt Stirring Induced by the Coupled Effects of Alternating Magnetic Field and Configuration of Cold Crucible

2017 ◽  
Vol 49 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yaohua Yang ◽  
Ruirun Chen ◽  
Jingjie Guo ◽  
Yanqing Su ◽  
Hongsheng Ding ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Alternating Magnetic Field ◽  
Cold Crucible

Electromagnetic Cold Crucible Technology Applied for Producing Big-Sized γ-TiAl Based Ingots with Directional Growth Structure

2013 ◽  
Vol 551 ◽  
pp. 103-108
Author(s):  
Hong Sheng Ding ◽  
Ge Nie ◽  
Yong Zhe Wang ◽  
Rui Run Chen ◽  
Jing Jie Guo ◽  
...  
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
High Temperature Strength ◽  
Cold Crucible ◽  
Directional Growth ◽  
Tial Alloys ◽  
Environmental Resistance ◽  
Growth Structure ◽  
Aero Engines ◽  
Solidification Parameters

Developing high performance aero-engines usually depends on the development of new candidate materials with charming properties such as relatively light-weight, good high temperature strength and environmental resistance. Fortunately, γ-TiAl alloys were followed into this catalogue that they offer a significant potentiality for weight savings. Recently, in order to improve their low room temperature plasticity, a motive technology called electromagnetic cold crucible directional solidification technology for preparation γ-TiAl alloy ingots with directional growth structure was put forward by our group. By the approach, TiAl ingots with controllable lamellar structures and less impurity contaminations are obtained. Typically, Ti-46Al-0.5W-0.5Si and Ti-47Al-2Cr-2Nb were performed with respect to compositions and solidification parameters. As a result, Ti-46Al-0.5W-0.5Si DS-samples exhibit good combination of mechanical properties at room temperature in TS of 500MPa and EL of 2% in average. Meanwhile TS of DS Ti-47Al-2Cr-2Nb reaches 650 MPa and EL exceeds 3%.

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