I had a difficult time acquiring information on commercial superalloys in my own PhD research--often needing to read several books and scientific articles--so I decided to conglomerate this...
Category: High Temperature Materials
Refractory metals are the metallic elements with the highest melting point, high hardness, and high density. Conservative definitions of “refractory” refer to 5 industrially useful metals with a...
What Are Superalloys? (Applications, History, and Metallurgy)
Superalloys are metal alloys that can operate at a high fraction of their melting point. Superalloys must have high strength, high melting points, resistance to corrosion or oxidation, and creep...
The melting point of a material is primarily related to bond strength. Materials with strong bonds between atoms will have a high melting temperature. However, other factors--such as crystal...
Thermal Barrier Coatings (TBCs): Materials, Manufacturing Methods, and Applications
Thermal Barrier Coatings (TBCs) are heat-resistant, ceramic coatings that are applied to superalloys. TBCs have complex chemistry that protects the base superalloy from heat, oxidation, and...
ElementCompositional range (Weight %) Purpose Ni, Fe, Co 50-70% These elements form the base matrix γ phase of the superalloy. Ni is necessary because it also forms γ' (Ni3Al). Fe and Co have...
