DIN 17864 TiAl6Zr5Mo0.5Si: Artificially Aged High‑Temperature Alloy
Chemical composition: DIN 17851 TiAl6Zr5Mo0.5Si with the material number 3.7155 (see also TiAl6Zr5Mo0.5Si, 3.7154, according to Werkstoff - Leistungsblatt der Deutschen Luftfahrt WL 3.7154) is an alpha + beta-alloy. Like 3.7l44 or 3.7145, the material was developed for the application at higher temperatures and possesses good strength and creep behaviour up to about 550 degrees C. The material 3.7155 is more susceptible to stress cracking corrosion in NaCl-solution than the materials TiAl6V4 or TiAl4Mo4Sn2Si. Processing properties: Weldability: good (chiefly tungsten inert-gas and electron beam welding) Application: It is applied particularly in the engine manufacturing for construction components like compressor discs and blades that are highly stressed at elevated temperatures (main application range between 300 and 450 °C).
Properties
General
| Property | Temperature | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|---|
Density | 20.0 °C | 4.45 g/cm³ | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging, Rod |
Mechanical
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Elastic modulus | 20.0 °C | 125.0 GPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging, Rod | |
Elongation | 20.0 °C | 6.0 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod | |
Plane-Strain Fracture Toughnes | 20.0 °C | 64.8 - 74.9 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | |
20.0 °C | 64.8 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 64.8 - 67.9 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 64.8 - 68.3 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 67.9 - 74.9 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 67.9 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 67.9 - 68.3 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 68.3 - 74.9 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 68.3 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 74.9 MPa·√m | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
Reduction of area | 20.0 °C | 15.0 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod | |
Shear modulus | 20.0 °C | 47.0 GPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging, Rod | |
Tensile strength | 20.0 °C | 950.0 MPa | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod | |
Yield strength | 20.0 °C | 880.0 MPa | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod | RP02 |
20.0 °C | 940.0 - 962.0 MPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 940.0 MPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 940.0 - 967.0 MPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 962.0 MPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 962.0 - 967.0 MPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging | ||
20.0 °C | 967.0 MPa | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging |
Thermal
| Property | Temperature | Value | Condition | Related Standards | Shape | Comment |
|---|---|---|---|---|---|---|
Coefficient of thermal expansion | 7.099999999999997e-06 - 9.699999999999999e-06 1/K | Typical for Titanium Beta Alloy | ||||
Melting point | 1550.0 - 1815.0 °C | Typical for Titanium Beta Alloy | ||||
Specific heat capacity | 20.0 °C | 540.0 J/(kg·K) | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging, Rod | |
Thermal conductivity | 20.0 °C | 4.2 W/(m·K) | Artificially Aged | WL 3.7154-1, DIN 17851, DIN 17864 | Forging, Rod |
Chemical properties
| Property | Value | Condition | Related Standards | Shape |
|---|---|---|---|---|
Aluminium | 5.7 - 6.3 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Carbon | 0.08 | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging |
Hydrogen | 0.015 | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging |
Iron | 0.2 | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Molybdenum | 0.25 - 0.75 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Nitrogen | 0.05 | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Oxygen | 0.19 | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Silicon | 0.1 - 0.4 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Titanium | 85.6 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Zirconium | 4.0 - 6.0 % | Artificially Aged | DIN 17851, DIN 17864, WL 3.7154-1 | Forging, Rod |
Metal
- DIN 1725-2 Grade G-AlSi7Mg T6 Aluminium Alloy – Specifications & Properties
- DIN 17743 NiCu30Al: High-Temperature, Creep-Resistant Alloy for Corrosion-Resistant Applications
- DIN 17851 TiAl6Sn2Zr4Mo2Si: High-Strength, Artificially Aged Titanium Alloy
- DIN 17851 TiAl6V6Sn2 – Premium High-Strength, Corrosion-Resistant Titanium Alloy
- DIN 1614-1 Grade St 22: Premium Cold-Rolled Steel for Industrial Applications
- DIN 1614-1 Grade St 24: Premium Cold‑Rolled Steel Sheet & Strip
- JIS H4040 Grade 6063 Aluminum – Quick-Cooled & Artificially Aged for Superior Strength
- JIS H4080 Grade 6063 Aluminum: Quick-Cooled, Artificially Aged for Superior Performance
- JIS H4100 Grade 6063: Quick-Cooled, Artificially Aged Aluminum Alloy
- DIN 17851 Grade TiAl6V4: Premium Artificially Aged Titanium Alloy – High Strength & Toughness