Piping and valves that are exposed to concentrated chlorine require super austenitic alloys that remain inert to the medium.
Each blade will be cast to form a single crystal of super alloy, making it extremely strong and able to resist the intense heat inside a jet engine.
Smaller amounts of hafnium and zirconium are used in super alloys to improve the properties of those alloys.
Nickel-based super alloys for aerospace applications are usually VAR processed.
Although these super alloys perform well in the final application, this performance comes at a high cost.
Although a super alloy, Hastelloy does experience degradation due to fabricating and handling.
Furthermore, with the increasing demand for turbine blade for power generation, another focus of alloy design is to reduce the cost of super alloys.
It took several years from that point on before the super alloys became widely used.
The Jumo 004 was hampered by poor workmanship and a lack of high-temperature super alloys.
These processes are common to high alloy special steels, super alloys and titanium alloys.