High-temperature microstructure stability and fracture toughness of TiAl alloy prepared via electron beam smelting and selective electron beam melting

2021 ◽  
Vol 136 ◽  
pp. 107259
Author(s):  
Hangyu Yue ◽  
Hui Peng ◽  
Ruifeng Li ◽  
Runqi Gao ◽  
Xiaopeng Wang ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Electron Beam ◽  
High Temperature ◽  
Electron Beam Melting ◽  
Tial Alloy ◽  
Microstructure Stability ◽  
Selective Electron Beam Melting

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.

FANSTEEL 80 METAL

Alloy Digest ◽  
1981 ◽  
Vol 30 (11) ◽  
Keyword(s):  
Fracture Toughness ◽  
Corrosion Resistance ◽  
Electron Beam ◽  
High Temperature ◽  
Elevated Temperature ◽  
Electron Beam Melting ◽  
Room Temperature ◽  
Base Alloy ◽  
Heat Treating ◽  
High Quality

Abstract FANSTEEL 80 METAL is a columbium-base alloy containing nominally 1% zirconium. It is produced by electron-beam melting which gives it exceptionally high interstitial purity. It is several times stronger than pure columbium at elevated temperature; and this is without sacrificing the ease of fabrication associated with columbium. Fansteel 80 Metal can be fabricated easily at room temperature and high-quality ductile welds are possible. Its applications include nuclear, liquid metal loops and structures for high-temperature environments. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: Cb-10. Producer or source: Fansteel Metallurgical Corporation. Originally published August 1966, revised November 1981.

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.

Creep Properties of Ti-48Al-2Cr-2Nb Produced by Selective Electron Beam Melting

2016 ◽  
Vol 704 ◽  
pp. 190-196 ◽  
Author(s):  
Vera Juechter ◽  
Carolin Körner
Keyword(s):  
Electron Beam ◽  
High Temperature ◽  
Electron Beam Melting ◽  
Titanium Aluminides ◽  
Turbine Blades ◽  
Weight Ratio ◽  
Cast Material ◽  
Creep Properties ◽  
Selective Electron Beam Melting ◽  
Temperature Applications

Titanium aluminides are highly attractive for high temperature applications involving dynamic components, e.g. turbine blades or turbocharger wheels, due to their high strength-to-weight ratio. The drawback is the difficult manufacturing of this material class due to the low toughness and high sensitivity to oxygen. Selective electron beam melting SEBM shows a new approach of producing complex titanium aluminide parts without a major oxygen pick up and avoiding problems with brittleness. The high cooling rates of this process lead to a very fine microstructure, which is not fully understood up to now. The microstructure determines the creep properties and therefore defines the performance of this material in high temperature applications. In this contribution, the creep properties of Ti-48Al-2Cr-2Nb fabricated by SEBM are investigated. The influence of the processing parameters and the building direction on the microstructure and the creep properties are discussed and compared to cast material.

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