3. Superalloy metallurgy

3.1 Microstructure and phases (Ni and Fe-Ni bases)

The metallographic structure of a superalloy is made up of several phases .

An austenitic γ matrix with a face-centered cubic structure (cfc) in which the elements Co, Cr, Mo, W and, to a lesser extent, Nb, Al, Ti and Ta can be substituted for Ni. These elements provide hardening in solid solution (figure 7 ).

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Superalloy metallurgy

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page Superalloy selection

Elaboration

Bibliography

(1) - KRACKE (A.) - Superalloys, the most successful alloy system of modern times – Past, present and future. - 7 ^th International symposium on superalloys 718 and Derivatives, p. 13, TMS (The minerals, Metals and Materials Society) (2010).
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Events

International Symposium on Superalloys. Seven Springs. USA. International conference on superalloys, held every 4 years. TMS (The minerals, Metals and Materials Society) http://www.tms.org

International Symposium on Superalloys 718 and Derivatives. Pittsburgh, USA. Conference on 718 superalloys and derivatives held every 4 years in the United...