Introduction
Inconel X-750 (UNS N07750/W.Nr.2.4669) is a precipitation hardenable nickel-chromium alloy used for its corrosion and oxidation resistance and high strength at temperatures up to 1300°F. Inconel X-750 is made from nickel-chromium alloy with titanium and aluminum added to give it superior mechanical and fracture qualities. This alloy is commonly used in the aerospace industry and in other high-temperature applications where strength and corrosion resistance properties are needed. It has good fabrication qualities, weldability and formability, making it ideal for a variety of applications.
Characteristics of Inconel X-750
Inconel X-750 is a nickel-chromium alloy with high strength and good corrosion and oxidation resistance. It has excellent thermal stability and exceptional fatigue strength in high temperature and corrosive environments. Inconel X-750 offers stiffness and low thermal expansion, making it ideal for critical applications where these qualities are needed. This material also offers superior strength when exposed to high temperatures, high oxidation resistance and excellent weldability.
Uses of Inconel X-750
due to its high strength, good corrosion and oxidation resistance, and excellent resistance to thermal cycling, Inconel X-750 is often used for components in high temperature applications, such as aircraft engines, power and energy generation, hot water pipelines and aerospace components. Inconel X-750 is often used for fasteners, fuel lines, heat exchangers, and turbine blades and stators. Inconel X-750 is also used for welding components, such as shields and shields, jet engines and missile engines, and components of gas turbine engines, such as combustion chambers and exhaust components.
Heat Treatment of Inconel X-750
Heat treatment of Inconel X-750 can be used to produce different properties such as increasing the yield strength or making the alloy easier to machine and form. Heat treatment of Inconel X-750 typically involves a solution heat treatment followed by an age hardening heat treatment. During the solution heat treatment process, the material is heated to a temperature high enough to allow the alloys to form a homogeneous structure and then rapidly cooled to remove any stress. The age hardening heat treatment then follows, where the material is heated again to a lower temperature and then held at this temperature for a predetermined amount of time.
Machinability and Weldability of Inconel X-750
The machinability of Inconel X-750 is considered good, with a machinability rating of 80%. This material is resistant to abrasive wear and can be difficult to machine, but with proper tooling and correct cutting speeds and feeds, good results can be achieved. The material is also fairly easy to weld, as long as the correct filler metal is used. Inconel X-750 does have lower tolerance for filler metals with a high silicon content, as it can lead to hot cracking during welding.
Conclusion
Inconel X-750 is an excellent material for high temperature applications and components due to its high strength and good corrosion and oxidation resistance. Its heat treatability and weldability make it well suited for many demanding applications. Inconel X-750 is commonly used in aerospace components, as well as in hot water pipelines, exhaust components, turbines, and other high temperature components. Its machinability is good and it can also be easily welded, as long as the correct filler metal is used.
