
- Titanium Aluminide Synonyms:
titanium aluminide powder (TiAl, Ti3Al, TiAl3, Ti-48Al-2Nb-2Cr, Ti2 AlNb), titanium aluminide powder, titanium aluminide sheet,TiAl,Ti3Al, TiAl3, Ti-48Al-2Nb-2Cr, Ti2AlNb, titanium aluminide powder, TiAl, Ti3Al, titanium aluminide sheet, titanium aluminide powder, TiAl, Ti3Al, titanium aluminide sheet, gamma-met, Ti-48Al-2Nb-2Cr, TiAl3, TiAl, Ti3Al, titanium aluminide sheet, gamma-met, Ti-48Al-2Nb-2Cr, TiAl3, gamma-met, Ti-48Al-2Nb-2Cr, TiAl3, TiAl= CAS # 12003-96-2, TiAl3= CAS # 12004-78-3, Ti3Al= CAS # 39410-63-4, UN 2878, UN 3178, aluminides, intermetallic chemical compounds,
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Titanium Aluminide Designations:
1) Chemical Name: Titanium aluminide
2) Chemical Formulas: TiAl, Ti3Al, TiAl3, Ti-48Al-2Nb-2Cr, Ti2 AlNb
3) Titanium aluminide has three major intermetallic compounds: gamma TiAl, alpha 2-Ti3Al and TiAl3. Among the three, gamma TiAl has received the most interest and applications.
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Titanium Aluminide General Description:
1) It is lightweight and resistant to oxidation and heat, however it suffers from low ductility. The density of gamma TiAl is about 4.0g/cm³. It finds use in several applications including automobiles and aircraft. The development of TiAl based alloys began about 40 years ago, however the alloys have only been used in these applications since about 2000.
2) Titanium aluminide has three major intermetallic compounds: gamma TiAl, alpha 2-Ti3Al and TiAl3. Among the three, gamma TiAl has received the most interest and applications. Gamma TiAl has excellent mechanical properties and oxidation/corrosion resistance at elevated temperatures (over 600 degrees Celsius), which makes it a possible replacement for traditional Ni based superalloy components in aircraft turbine engines.
3) TiAl based alloys have a strong potential to increase the thrust-to-weight ratio in the aircraft engine. This is especially the case with the engine's low pressure turbine blades and the high pressure compressor blades. These are traditionally made up of Ni based superalloy, which is nearly twice as dense as TiAl based alloys.
4) General Electric has recently announced that gamma TiAl low pressure turbine blades will be used on its GEnx engine, which powers the Boeing 787 and Boeing 747-8 aircraft. This is the first large-scale use of this material on a commercial jet engine. Source: Wikipedia
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Titanium Aluminide Typical Chemical Purities Available:
99.5%
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Titanium Aluminide Typical Granulations Available:
sheet (Gamma-met), foil, targets, tablets, 6 MM pieces, and powder as small as 10 microns average particle size
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Titanium Aluminide Nominal Physical Constants:
Density (g/cm3)- alpha 2
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~4.1- 4.7
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Specific Gravity
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Specific Heat @25°C (cal/g-°C)
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Melting Point (°C)
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~1,460
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Boiling Point (°C)
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Surface Area (m2/g)
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Thermal Conductivity @20°C (cal/s-cm-°C)
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Youngs Modulus @600°C
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~159 giga-pascal
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- Titanium Aluminide Typical Applications:
1) TiAl turbine blades to replace superalloys due to lower density and higher operating temperatures, US national aerospace plane, air frames, investment casting, automotive engine valves, turbocharger rotors, and wire/fiber metal matrix composites
2) General Electric has recently announced that gamma TiAl low pressure turbine blades will be used on its GEnx engine, which powers the Boeing 787 and Boeing 747-8 aircraft. This is the first large-scale use of this material on a commercial jet engine.
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Titanium Aluminide Packaging Options:
Jars and drums
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Titanium Aluminide TSCA (SARA Title III) Status:
Listed. For further information please call the U.S. Environmental Protection Agency at +1.202.554.1404
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Titanium Aluminide Chemical Abstract Service (CAS) Numbers:
1) TiAl= 12003-96-2
2) TiAl3= 12004-78-3
3) Ti3Al= 39410-63-4
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Titanium Aluminide UN Number:
2878, 3178
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