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Introduction
Titanium alloys possess numerous beneficial properties and find applications across various industries including automotive, consumer electronics, military, aerospace, medical, marine, and sports equipment. Among these, Grade 7 Ti-0.15Pd stands out due to its impressive corrosion resistance in environments like reducing acids and hot halide media. The addition of palladium significantly enhances the alloy’s ability to withstand corrosive conditions. Similar to Grade 2 titanium alloys, this material offers moderate strength and excellent ductility, making it a versatile choice for demanding applications.
This article delves deeper into the specifics of Grade 7 Ti-0.15Pd alloy, exploring its chemical composition, physical properties, mechanical characteristics, and thermal behavior.
Chemical Composition
The chemical composition of Grade 7 Ti-0.15Pd alloy is outlined in the table below, showcasing the precise balance of elements that contribute to its unique properties.
| Element | Content (%) |
|---------------|-------------|
| Iron (Fe) | ≤0.3 |
| Oxygen (O) | ≤0.25 |
| Palladium (Pd)| 0.12–0.25 |
| Carbon (C) | ≤0.08 |
| Nitrogen (N) | ≤0.03 |
| Hydrogen (H) | ≤0.015 |
| Other | ≤0.4 |
| Titanium (Ti) | Balance |
Physical Properties
Grade 7 Ti-0.15Pd exhibits distinct physical properties that make it suitable for high-performance applications. Its density, for instance, is measured at 4.51 g/cm³ (0.162 lb/in³), which contributes to its lightweight yet robust nature.
Mechanical Properties
The mechanical properties of Grade 7 Ti-0.15Pd are equally noteworthy. With a tensile strength of 485 MPa (70,343 psi), it demonstrates excellent durability under stress. Its yield strength reaches 350 MPa (50,763 psi), providing reliable performance even under heavy loads. The elastic modulus of 103 GPa (14,938 ksi) indicates its stiffness and resistance to deformation. Furthermore, this alloy boasts an elongation of 28% in 50 mm, reflecting its flexibility and ductility. Its hardness, measured at 150 HV, underscores its resistance to wear and abrasion.
Thermal Properties
In terms of thermal performance, Grade 7 Ti-0.15Pd showcases a thermal conductivity of 20.8 W/mK (144 BTU in/hr.ft².°F) at room temperature. This property makes it ideal for applications where heat dissipation is critical.
Conclusion
Grade 7 Ti-0.15Pd alloy combines exceptional corrosion resistance with balanced mechanical and thermal properties, positioning it as a premier choice for advanced industrial applications. Whether in aerospace, medical devices, or other demanding sectors, this alloy proves its worth through reliability and performance. Further exploration of its capabilities could unlock even more innovative uses in the future.