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The equivalent grain size distributions and average grain sizes of (a,c) PA1 and (b,d) MA1-36h alloys consolidated at different conditions.

The equivalent grain size distributions and average grain sizes of (a,c) PA1 and (b,d) MA1-36h alloys consolidated at different conditions.

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Figure 1. Flow-process diagram of samples preparation.
Figure 3. The microstructural feature and particle size distribution...
Figure 5. The SEM images of failure specimens consolidated at different...
Figure 8. EBSD maps at center region of (a) PA1 and (b) MA1-36h alloys...
+1 Figure 9. The equivalent grain size distributions and average grain...
Optimizing the Thermomechanical Process of Nickel-Based ODS Superalloys by an Efficient Method
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  • Jun 2022
Thermo-mechanical process of nickel-based oxide dispersion strengthened (ODS) superalloys is critical to produce desired components. In this study, an efficient method of consolidating powder is introduced to optimize the preparation process, microstructure and properties of nickel-based ODS superalloys. The influences of consolidation temperature,...
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... temperature increasing, the strain hardening gets relieved, the improved temperature enhances the formation of DRX nucleation via subgrain formation, the initiation of DRX is faster at higher temperature [30,39]. In general, the improved temperature increases the average grain size of samples based on Figure 8 and Figure 9. The improved temperature can also enhance the DRV and grain growth which relief the dislocation accumulation and consume the stored energy, making it less sufficient to trigger sufficient recrystallization. ...