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Master Bond adhesives

Ti-24Al-14Nb Titanium Aluminide
Categories: Metal; Intermetallic; Nonferrous Metal; Titanium Alloy

Material Notes: Alpha-2 Titanium Aluminide Ti3Al based alloy. Ti-24Al-14Nb refers to the atomic percentage composition. The niobium addition improves stress rupture and elevated temperature strength versus Ti3Al. Intermetallic aluminides have good mechanical properties and stability to be used in high temperature environments. A thin protective Al2O3 coating forms to provide oxidative stability.

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Mechanical PropertiesMetricEnglishComments
Tensile Strength, Ultimate 977 MPa142000 psiWidmanstätten microstructure
Tensile Strength, Yield 831 MPa121000 psiWidmanstätten microstructure
Elongation at Break 2.1 %2.1 %Widmanstätten microstructure
Creep Strength 380 MPa
@Temperature 650 °C,
Time 214000 sec
55100 psi
@Temperature 1200 °F,
Time 59.5 hour
Widmanstätten microstructure; Creep Rupture
 
Component Elements PropertiesMetricEnglishComments
Aluminum, Al 13.2 %13.2 %by weight
Niobium, Nb (Columbium, Cb) 26.5 %26.5 %by weight
Titanium, Ti 60.4 %60.4 %by weight

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MIAL026 / 143024

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