superalloy
Sign in to saveAlso known as HRSA, high-performance alloy, high-temperature alloy, heat-resistant superalloy, SA
thumb|right|Nickel superalloy jet engine (RB199) turbine blade A superalloy, sometimes called a heat-resistant superalloy (HRSA) or a high-performance alloy, is an alloy with the ability to operate at a high fraction of its melting point. Key characteristics of a superalloy include mechanical strength, thermal creep deformation resistance, surface stability, and corrosion and oxidation resistance.
~51 min read
Article
44 sectionsContents
- Chemical development
- Phase formation
- Families of superalloys
- Ni-based
- History
- Phases
- Co-based
- Phases
- Fe-based
- Microstructure
- Microstructure
- Single-crystal superalloys
- Oxidation
- Creep
- Processing
- Casting and forging
- Investment casting
- Directional solidification
- Single crystal growth
- Powder metallurgy
- Sintering and hot isostatic pressing
- Additive manufacturing
- Coatings
- Types
- Thermal barrier coatings
- Bond coat
- Process methods
- Pack cementation
- Thermal spraying
- Plasma spraying
- Gas phase
- Failure mechanisms
- Applications
- Turbines
- Energy production
- Research
- Radiolysis
- Austenitic steel
- AFA superalloys
- Multi-principal-element superalloy (MPES)
- See also
- References
- Bibliography
- External links
thumb|right|Nickel superalloy jet engine (RB199) turbine blade A superalloy, sometimes called a heat-resistant superalloy (HRSA) or a high-performance alloy, is an alloy with the ability to operate at a high fraction of its melting point. Key characteristics of a superalloy include mechanical strength, thermal creep deformation resistance, surface stability, and corrosion and oxidation resistance.
The crystal structure is typically face-centered cubic (FCC) austenitic. Examples of such alloys are Hastelloy, Inconel, Waspaloy, Rene alloys, Incoloy, MP98T, TMS alloys, and CMSX single crystal alloys. They are broadly grouped into three families: nickel-based, cobalt-based, and iron-based.