Effect of heat treatment on the diffusion coefficient of hydrogen absorption in gamma-titanium aluminide

2007 ◽  
Vol 185 (1-3) ◽  
pp. 106-112 ◽  
Author(s):  
K. Suardi ◽  
E. Hamzah ◽  
A. Ourdjini ◽  
V.C. Venkatesh
Keyword(s):  
Heat Treatment ◽  
Diffusion Coefficient ◽  
Titanium Aluminide ◽  
Hydrogen Absorption ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium

Intrinsic Heat Treatment Within Additive Manufacturing of Gamma Titanium Aluminide Space Hardware

JOM ◽  
2019 ◽  
Vol 71 (4) ◽  
pp. 1513-1519 ◽  
Author(s):  
André Seidel ◽  
Shuvra Saha ◽  
Tim Maiwald ◽  
Juliane Moritz ◽  
Stefan Polenz ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Additive Manufacturing ◽  
Titanium Aluminide ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium

Diffusion coefficient of hydrogen in a cast gamma titanium aluminide

1999 ◽  
Vol 41 (1) ◽  
pp. 75-80 ◽  
Author(s):  
P.A. Sundaram ◽  
E. Wessel ◽  
P.J. Ennis ◽  
W.J. Quadakkers ◽  
L. Singheiser
Keyword(s):  
Diffusion Coefficient ◽  
Titanium Aluminide ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium

Limitations of an Indentation Model for Grinding Gamma Titanium Aluminide

2002 ◽  
Author(s):  
H. Ali Razavi ◽  
Steven Danyluk ◽  
Thomas R. Kurfess
Keyword(s):  
Force Control ◽  
Titanium Aluminide ◽  
Normal Force ◽  
Removal Rate ◽  
Cubic Boron Nitride ◽  
Normal Component ◽  
Grinding Force ◽  
Cutting Depth ◽  
Gamma Titanium Aluminide ◽  
Gamma Titanium

This paper explores the limitations of a previously reported indentation model that correlated the depth of plastic deformation and the normal component of the grinding force. The indentation model for grinding is studied using force control grinding of gamma titanium aluminide (TiAl-γ). Reciprocating surface grinding is carried out for a range of normal force 15–90 N, a cutting depth of 20–40 μm and removal rate of 1–9 mm3/sec using diamond, cubic boron nitride (CBN) and aluminum oxide (Al2O3) abrasives. The experimental data show that the indentation model for grinding is a valid approximation when the normal component of grinding force exceeds some value that is abrasive dependent.

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.

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