Generic Ti-22Al-23Nb Titanium Alloys

Material group: Nonferrous Alloys / Titanium Alloys
Country / Standard: Generic

Data updates

Latest Update: 2019-12
Total number of updates: 2
Update History
2019-11

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Generic Ti-22Al-23Nb Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
Al
VALUE
11.61
UNIT
%
CAS NUMBER
7429-90-5
CRITERIA
C
VALUE
0.0099
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
H
VALUE
0.0032
UNIT
%
CAS NUMBER
1333-74-0
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Nb
VALUE
val1
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UNIT
%
CAS NUMBER
7440-03-1
CRITERIA
O
VALUE
val1
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UNIT
%
CAS NUMBER
7782-44-7; 17778-80-2
CRITERIA
Ti
VALUE
val1
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UNIT
%
CAS NUMBER
7440-32-6

Effects of high temperature air and vacuum exposures on the room temperature tensile behavior of the (O + B2) titanium aluminide Ti-22Al-23Nb, Franqois-Charles Dary, Tresa M. Pollock, Elsevier, 1996

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Generic Ti-22Al-23Nb Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
80 — 135 GPa
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Density
4.3 — 5.1 kg/dm³
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This material has 90 properties — only a subset is shown here.

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Generic Ti-22Al-23Nb Heat Treatments


  • Heat treatment + specimen surface preparation

    AR-P: As received + ground and polished

    P-VAC: Ground and polished + 760°C for 100 h in vacuum

    VAC-P: 760°C for 100 h in vacuum + ground and polished

    P-AIR: Ground and polished + 760°C for 100 h in air

    AIR-P: 760°C for 100 h in air + ground and polished



    Heat treatment 1: Solution treated at 1025°C for 2h + cooling rate 28°C/min + aged at 815°C for 8h, furnace cooled.

    Heat treatment 2: Solution treated at 1050°C for 2h + cooling rate 28°C/min + aged at 815°C for 8h, furnace cooled.

    Heat treatment 3: Solution treated at 1075°C for 2h + cooling rate 28°C/min + aged at 815°C for 8h, furnace cooled.

    Heat treatment 4: Solution treated at 1125°C for 2h + cooling rate 28°C/min + aged at 815°C for 8h, furnace cooled.

    Heat treatment 5: Solution treated at 1075°C for 2h + cooling rate 2.8°C/min + aged at 815°C for 8h, furnace cooled.

    Heat treatment 6: Solution treated at 1075°C for 2h + cooling rate 28°C/min + aged at 760°C for 16h, furnace cooled.

    Heat treatment 7: Solution treated at 1075°C for 2h + cooling rate 28°C/min + aged at 870°C for 4h, furnace cooled.

Generic Ti-22Al-23Nb Mechanical Properties


Temperature

PROPERTY / VALUE
Tensile Strength
508 — 1111 MPa
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Elongation, A
1.14 — 14.8 %
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Yield Strength, Rp0.2
395 — 931 MPa
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Yield Strength, Rp1
val1
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MPa
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  • -Cross References

  • 7Composition
  • 72Mechanical Properties
  • 10Physical Properties
  • 1Heat Treatment
  • -Metallography
  • -Machinability

  • -Stress-Strain
  • -Formability
  • -Fatigue
  • -Fracture
  • -Creep

  • -Joints
  • -Coatings
  • -Dimensions
  • -Tribology

  • -Corrosion
  • -Ageing
  • -Weatherability
  • -Irradiation

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