scholarly journals Designing advanced intermetallic titanium aluminide alloys for additive manufacturing

2021 ◽  
Vol 131 ◽  
pp. 107109
Author(s):  
David Wimler ◽  
Janny Lindemann ◽  
Marcel Reith ◽  
Alexander Kirchner ◽  
Melissa Allen ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Titanium Aluminide ◽  
Titanium Aluminide Alloys

The Dependence of Tensile Ductility on Investment Casting Parameters in Gamma Titanium Aluminides

1998 ◽  
Vol 552 ◽  
Author(s):  
R. Raban ◽  
L. L. ◽  
T. M.
Keyword(s):  
Titanium Aluminide ◽  
Titanium Aluminides ◽  
Tensile Ductility ◽  
Gamma Titanium Aluminide ◽  
Cooling Rates ◽  
Gamma Titanium ◽  
Investment Cast ◽  
Thermal Data ◽  
Titanium Aluminide Alloys ◽  
Simulation Package

ABSTRACTPlates of three gamma titanium aluminide alloys have been investment cast with a wide variety of casting conditions designed to influence cooling rates. These alloys include Ti-48Al-2Cr-2Nb, Ti- 47Al-2Cr-2Nb+0.5at%B and Ti-45Al-2Cr-2Nb+0.9at%B. Cooling rates have been estimated with the use of thermal data from casting experiments, along with the UES ProCAST simulation package. Variations in cooling rate significantly influenced the microstructure and tensile properties of all three alloys.

Hybrid Additive Manufacturing of Gamma Titanium Aluminide Space Hardware

2018 ◽  
Author(s):  
A. Seidel ◽  
T. Maiwald ◽  
T. Finaske ◽  
S. Polenz ◽  
S. Saha ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Titanium Aluminide ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium

Introduction of ternary alloying element in wire arc additive manufacturing of titanium aluminide intermetallic

2019 ◽  
Vol 27 ◽  
pp. 236-245 ◽  
Author(s):  
Jun Wang ◽  
Zengxi Pan ◽  
Liangliang Wei ◽  
Shuai He ◽  
Dominic Cuiuri ◽  
...  
Keyword(s):  
Additive Manufacturing ◽  
Titanium Aluminide ◽  
Alloying Element ◽  
Ternary Alloying ◽  
Wire Arc Additive Manufacturing

Stress Driven Phase Transformations and Recrystallization Processes in Two-Phase Titanium Aluminide Alloys

2000 ◽  
Vol 652 ◽  
Author(s):  
Fritz Appel ◽  
Michael Oehring
Keyword(s):  
Phase Transformation ◽  
Titanium Aluminide ◽  
Electron Microscope Study ◽  
Phase Boundaries ◽  
Two Phase ◽  
Titanium Aluminide Alloy ◽  
Lower Solubility ◽  
Term Creep ◽  
Titanium Aluminide Alloys

ABSTRACTThe paper presents an electron microscope study of phase transformation and recrystallization in an intermetallic α2(Ti3Al) + γ(TiAl) titanium aluminide alloy, after long-term creep. The mechanisms are closely related to the atomic structure of the α2/γ phase boundaries and are probably driven by a non-equilibrium of the phase composition leading to the dissolution of the α2 phase. The α2 /γ transformation is accompanied by the formation of precipitates, because the γ(TiAl)phase has a significantly lower solubility for interstitial impurities than the α2(Ti3Al) phase.

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