Effect of finishing temperature of hot rolling on recrystallization and mechanical properties of MA 754 plate
- Korea Advanced Inst. of Science and Technology, Taejon (Korea, Republic of). Dept. of Materials Science and Engineering
- Inco Alloys International, Inc., Huntington, WV (United States)
Nickel-base oxide-dispersion-strengthened (ODS) alloys produced by the mechanical alloying process have been developed for high temperature applications. In particular, INCONEL{trademark} alloy MA 754 has been used as a turbine vane alloy in advanced jet engines. ODS alloys attract great attention as advanced high temperature materials, because they can retain useful strength up to relatively high fractions of their melting points. The elevated temperature strength of ODS alloys is due to the presence of inert, finely dispersed oxide particles which serve to inhibit the motion of dislocations. In addition to this direct strengthening by oxide particles, the most important microstructural feature affecting elevated temperature strength of ODS alloys is a very coarse grain structure. The aim of this study was to investigate the effect of the finishing temperature (FT) of hot rolling on the microstructure and the secondary recrystallization response of hot rolled INCONEL alloy MA 754 plate. Also, this work addressed the relationship between as-hot rolled microstructure and recrystallized grain structure after secondary recrystallization.
- OSTI ID:
- 586051
- Journal Information:
- Scripta Materialia, Vol. 37, Issue 12; Other Information: PBD: 15 Dec 1997
- Country of Publication:
- United States
- Language:
- English
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