Platinum-rhenium alloys are commonly used for applications requiring high thermal stability and high temperature strength where pure platinum is unsuitable. The higher rhenium content gives them increased creep resistance and a higher melting point.
Platinum-rhenium alloys are especially useful due to their excellent corrosion resistance. They are highly resistant to corrosion in a wide range of environments, including alkaline, acidic and neutral solutions. In comparison with pure platinum, these alloys exhibit improved corrosion resistance in both hot water and steam.
Platinum-rhenium alloys are also favoured due to their excellent thermal stability and high temperature strength. These alloys have a higher melting point than pure platinum and demonstrate improved resistance to creep and other forming operations at high temperatures. The elevated temperature strength of these alloys makes them suitable for applications in extreme temperatures, such as those in aerospace, energy, and chemical production.
In addition, the thermal stability of these alloys makes them suitable for applications requiring vibration and shock resistant designs. This includes aerospace applications, such as in turbine blades, as well as other industrial and automotive components. As these alloys are lightweight and have an excellent strength to weight ratio, they can be used to create structures that are resistant to wear and fatigue, as well as exposure to extreme temperatures.
Platinum-rhenium alloys are also valued for their excellent electrical conductivity and low thermal expansion rate. The ability to maintain electrical conductivity even at elevated temperatures makes these alloys especially useful in applications such as electric heaters and conductors, reactor vessel liners, and nuclear fuel elements. In comparison with pure platinum, the high electrical conductivity of these alloys allows them to be used in applications where power needs to be conducted over high temperature and long distance.
Putting all these properties together, it is clear to see why platinum-rhenium alloys are widely used in many industries. These alloys possess superior thermal strength, excellent corrosion resistance, excellent electrical conductivity and low thermal expansion rate, making them ideal for a variety of applications. The combination of these properties also makes them a cost-effective solution for many industries. By replacing pure platinum in applications requiring increased performance and durability, platinum-rhenium alloys can significantly reduce the total cost of ownership.
