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

Hong Sheng Ding; Ge Nie; Yong Zhe Wang; Rui Run Chen; Jing Jie Guo; Heng Zhi Fu

doi:10.4028/www.scientific.net/KEM.551.103

Paper Titles

Effect of Powder Compact Holding Time on the Microstructure and Properties of Ti-6Al-4V Alloy Produced by Powder Compact Extrusion of a Powder Mixture of HDH Titanium and Al-V Master Alloy
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Consolidation of Blended Titanium/Magnesium Powders by Microwave Processing
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The Effects of Lubrication on the Density Gradient of Titanium Powder Compacts
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Parameters Optimization of γ-Ti-46.6Al-1.4Mn-2Mo Alloy by Hot-Pressing Sintering and its Microstructures
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Electromagnetic Cold Crucible Technology Applied for Producing Big-Sized γ-TiAl Based Ingots with Directional Growth Structure
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Economic Surface Treatment of Ti-Alloys to Improve their Resistance against Environmental High Temperature Attack
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Development of Low Cost and Low Elastic Modulus of Ti-Al-Mo-Fe Alloys for Automotive Applications
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The Development of a Ti-6Al-4V Alloy via Oxygen Solid Solution Strengthening for Aerospace & Defense Applications
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Titanium Based Composite Coatings Deposited by High Velocity Oxygen Fuel (HVOF) and Plasma Spraying Methods
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 551Electromagnetic Cold Crucible Technology Applied...

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

Abstract:

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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Periodical:

Key Engineering Materials (Volume 551)

Pages:

103-108

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.551.103

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Online since:

May 2013

Authors:

Hong Sheng Ding, Ge Nie, Yong Zhe Wang, Rui Run Chen, Jing Jie Guo, Heng Zhi Fu

Keywords:

Directional Solidification, Electromagnetic Cold Crucible, Lamellae Orientation, Mechanical Property, Structure, γ-TiAl Alloys

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