Aerospace Materials Specification 5819, commonly known as AMS 5819, is a high-performance nickel alloy used in many applications. This alloy can withstand high temperatures, high pressure, and corrosive environments. In this blog post, we will explore what AMS 5819 is, its composition, physical and mechanical properties, uses hardness, and heat treatment.
AMS 5819 Composition
AMS 5819 is a nickel-based alloy containing chromium, cobalt, molybdenum, tungsten, titanium, and aluminium. Adding these elements gives the alloy excellent corrosion resistance, high-temperature strength, and oxidation resistance.
AMS 5819 Physical Properties
AMS 5819 has a high melting point of 1343°C (2450°F), and it retains its strength at high temperatures up to 980°C (1800°F). The density of AMS 5819 is 8.22 g/cm³, and it has a thermal conductivity of 13.9 W/m-K. Additionally, it has a low coefficient of thermal expansion, making it an ideal material for use in high-temperature environments.
AMS 5819 Mechanical Properties
AMS 5819 has superior mechanical properties, making it an excellent choice for critical applications. It has a yield strength of 880 MPa, tensile strength of 1200 MPa, and high flexibility of 25%. The alloy can be easily formed and welded, making it versatile for numerous applications.
AMS 5819 Uses
AMS 5819 is widely used in the aerospace industry, where it is used for high-temperature applications such as turbine blades, exhaust nozzles, and combustion liners. It is also used in the chemical and petrochemical industries, where it is used for heat exchangers, furnace parts, and heat-treating fixtures.
AMS 5819 Hardness
AMS 5819 has excellent hardness and wear resistance, making it an ideal material for critical applications. Its HRC ranges from 35 to 45, with a Vickers hardness 318.
AMS 5819 Heat Treatment
Heat treatment is crucial to achieve the desired properties of AMS 5819. The alloy can be heat-treated by annealing, quenching, and ageing. Annealing improves flexibility while quenching and ageing increase tensile strength and hardness.
Conclusion
AMS 5819 is a high-performance nickel-based alloy capable of withstanding high temperatures, high pressure, and corrosive environments. Its excellent physical and mechanical properties make it an ideal material for critical applications in various industries, including aerospace, chemical, and petrochemical. Proper heat treatment is crucial to achieving the desired properties of AMS 5819, making it a versatile material for numerous applications across various sectors.
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