Firstly it is made of a superalloy which has superior mechanical strength and creep resistance at high temperatures good corrosion and oxidation resistance compared to normal metals and alloys. The metals used for turbine blades are often grown as a single crystal.

The Evolution Of Jet Engine Turbine Blades Youtube

To elaborate it a bit we all know that in the jet engine turbine the blades need to withstand 1500 celsius heat.

Jet engine turbine blade material. Since the turbine blade temperature exceed 1200qc and can reach to 1500qc. As cast polycrystalline a directionally solidified single crystal and in last year s materials which were produced by powder metallurgy. The turbine blades are often the limiting component of gas turbines.

The high pressure turbine is with the combustion chamber very hot more than the exhaust nozzle. The turbine materials in high pressure and temperature section are generally ni based superalloys because of their high creep strength while the materials in low pressure and temperature section can be stainless steels co and ni based superalloys. Nickel inconel and stainless steel alloys.

A turbine blade is the individual component which makes up the turbine section of a gas turbine or steam turbine. Nickel base superalloys were used in various structural modifications. Of course the tet is bounded by the metallurgy of the turbine blade materials.

The blades are responsible for extracting energy from the high temperature high pressure gas produced by the combustor. To survive in this difficult environment turbine blades often use exotic materials like superalloys and many different methods of cooling that can be categorized as internal and external cooling. For the most stressed parts of the jet engine the turbine blades.

Aluminum or polymer matrix materials. The tet has increased from around 800 c in 1940 to 1500 c in the 1994 rolls royce trent engine. So what exactly is a superalloy.

This turbine blade has two distinguishing material features. Due to stress and temperature turbine blades are one of the most demanding components as unlike the combustor turbines are a moving part. This development has in part been due to better materials but more importantly through channelling of cold compressor air to cool the turbine blades.

It can be made into single crystal microstructures which has the best resistant against creep. You may read this wikipedia article which has a short list of materials used for turbine blades with alloys names and cooling techniques. Thinking about what materials are available ceramics look like the answer in this case because they are strong corrosion resistant and perform well at high temperatures beyond what metals can achieve.