scholarly journals Freeform Fabrication of Titanium Aluminide via Electron Beam Melting Using Prealloyed and Blended Powders

2007 ◽  
Vol 2007 ◽  
pp. 1-4 ◽  
Author(s):  
Denis Cormier ◽  
Ola Harrysson ◽  
Tushar Mahale ◽  
Harvey West
Keyword(s):  
Electron Beam ◽  
High Temperature ◽  
Intermetallic Compound ◽  
Titanium Aluminide ◽  
Electron Beam Melting ◽  
Processing Parameters ◽  
Reaction Synthesis ◽  
Prealloyed Powder ◽  
Freeform Fabrication ◽  
Temperature Performance

Titanium aluminide (TiAl) is an intermetallic compound possessing excellent high-temperature performance while having significantly lower density than nickel-based superalloys. This paper presents preliminary results of experiments aimed at processing TiAl via the electron beam melting (EBM) process. Two processing routes are explored. The first uses prealloyed powder, whereas the second explores controlled reaction synthesis. Issues such as processing parameters, vaporization of alloying elements, microstructure, and properties are discussed.

E-BRITE 26-1

Alloy Digest ◽  
1972 ◽  
Vol 21 (12) ◽  
Keyword(s):  
Fracture Toughness ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Electron Beam ◽  
High Temperature ◽  
High Purity ◽  
Electron Beam Melting ◽  
Heat Treating ◽  
Good Corrosion Resistance ◽  
Temperature Performance

Abstract E-BRITE 26-1 is a high-purity ferritic stainless steel produced by electron-beam melting. It combines excellent fabrication properties and weld-ability with good corrosion resistance. This datasheet provides information on composition, physical properties, hardness, and tensile properties as well as fracture toughness and fatigue. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SS-285. Producer or source: Licensees of Airco Vacuum Metals.

scholarly journals Nanoscaled eutectic NiAl-(Cr,Mo) composites with exceptional mechanical properties processed by electron beam melting

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Andreas Förner ◽  
S. Giese ◽  
C. Arnold ◽  
P. Felfer ◽  
C. Körner ◽  
...  
Keyword(s):  
Electron Beam ◽  
High Temperature ◽  
Electron Beam Melting ◽  
Lamellar Microstructure ◽  
High Hardness ◽  
Additive Process ◽  
In Situ Composites ◽  
Selective Electron Beam Melting ◽  
Very High

Abstract Eutectic NiAl-(Cr,Mo) composites are promising high temperature materials due to their high melting point, excellent oxidation behavior and low density. To enhance the strength, hardness and fracture toughness, high cooling rates are beneficial to obtain a fine cellular-lamellar microstructure. This can be provided by the additive process of selective electron beam melting. The very high temperature gradient achieved in this process leads to the formation of the finest microstructure that has ever been reported for NiAl-(Cr,Mo) in-situ composites. A very high hardness and fracture toughening mechanisms were observed. This represents a feasibility study towards additive manufacturing of eutectic NiAl-(Cr,Mo) in-situ composites by selective electron beam melting.

scholarly journals Electron Beam Melting of a β‐Solidifying Intermetallic Titanium Aluminide Alloy

2019 ◽  
Vol 21 (12) ◽  
pp. 1900800 ◽  
Author(s):  
Reinhold Wartbichler ◽  
Helmut Clemens ◽  
Svea Mayer
Keyword(s):  
Electron Beam ◽  
Titanium Aluminide ◽  
Electron Beam Melting ◽  
Titanium Aluminide Alloy
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