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Cobalt-based superalloy microstructure aged at 1173 K for 168 h, Co-10Ni-(9 − x)Al-(9 − x) W-2xTi: (a) 2Ti, (b) 4Ti, (c) 6Ti, (d) 8Ti [37].

Cobalt-based superalloy microstructure aged at 1173 K for 168 h, Co-10Ni-(9 − x)Al-(9 − x) W-2xTi: (a) 2Ti, (b) 4Ti, (c) 6Ti, (d) 8Ti [37].

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Figure 1. Multi-scale framework from single crystal to polycrystalline...
Figure 2. Stress anomalies in γ ′ phase of cobalt-based superalloys...
Figure 5. Cobalt-based superalloy microstructures: (a) Co-9Al-9W, (b)...
Figure 6. Comparison of yield stress vs. temperature between...
+8 Figure 7. Cobalt-based superalloy microstructure aged at 1173 K for 168...
Advanced Computational Analysis of Cobalt-Based Superalloys through Crystal Plasticity
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  • May 2024
This study introduces an advanced computational method aimed at accelerating continuum-scale processes using crystal plasticity approaches to predict mechanical responses in cobalt-based superalloys. The framework integrates two levels, namely, sub-grain and homogenized, at the meso-scale through crystal plasticity finite element (CPFE) platforms....
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... base microstructure has a nominal chemical composition (mole fraction × 100) of Co-10Ni-(9 − x)Al-(9 − x)W-2xTi. The flow stress at different temperatures is similar to the ternary case when x is 0. The microstructures for x = 1 to 4 are shown in Figure 7 as 2 Ti, 4 Ti, 6 Ti, and 8 Ti. According to [37], the volume fraction of the precipitates increases from 56% to 68% when the content of titanium in mole fraction × 100 rises from 0 to 8%. ...