Single Crystal Nickel

QuesTek's single crystal nickel superalloy (QTSX) exhibits superior castability compared to incumbent single crystal alloys such as PWA 1484, Rene N5, and CMSX-8. At the same time, it provides similar or better high-temperature mechanical properties. QTSX, which contains ~1 wt.% rhenium, is designed for turbine blades in industrial gas turbines. It exhibits the following benefits:

• Defect-free (e.g. freckle, hot tearing) castability of rhenium-free single crystal alloys
• Similar or better creep resistance compared to high-rhenium (≥3 wt.%) single-crystal alloys
• Lower cost due to low rhenium content and high casting yield in manufacturing