January 2021
Intermediate to advanced
680 pages
24h 48m
English
book
Functional Materials and Advanced Manufacturing
by Chander Prakash, Sunpreet Singh, J. Paulo Davim
Content preview from Functional Materials and Advanced Manufacturing
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
Start your free trial
114 Functional and Smart Materials
6.4.2 FE-NI-BASED SUPERALLOYS
Fe-based superalloys are also known as Fe-Ni-based superalloys. The major change
in this type of material is to replace Ni with Fe. Lower cost of iron compared to
nickel is the only explanation for the existence of such material. Addition of Cr
increases the oxidation resistance. Mo, Cr help in solid solution strengthening while
Ti, Al, Nb help in precipitation hardening by forming various intermetallic inside
the materials. Addition of Cr and Mo reduces the solubility of Al, Ti and Nb in
the matrix which helps in formation of ′ phase. So, Cr and Mo are kno