ArticleAdvanced science (Weinheim, Baden-Wurttemberg, Germany)2025
Mechanism-Aware Digital Twin for High-Temperature Creep Prediction in Mo-Re Alloys.
Article in Advanced science (Weinheim, Baden-Wurttemberg, Germany), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Mechanism-Aware Digital Twin for High-Temperature Creep Prediction in Mo-Re Alloys.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025Article
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8 authors.
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Abstract
Predicting the long-term deformation of structural materials under extreme conditions remains a grand challenge in materials science, especially for refractory alloys, where high-temperature creep limits performance and service life. Here, a physics-informed digital twin framework is developed that integrates a viscoplastic self-consistent (VPSC) model, real-time high-temperature creep experiments, and a calibration neural network to predict and elucidate the creep behavior of Mo-14Re alloys. The digital twin accurately reproduces creep curves across 1000-1200 °C and 60-150 MPa, achieving <5% deviation from experiments. Crucially, the learned parameter trajectories uncover a previously unrecognized mechanism: Re solute atoms are dragged by gliding dislocations ("solute-drag" effect), leading to rhenium segregation at grain boundaries and compromised creep strength. This is corroborated by post-mortem TEM and molecular dynamics simulations. Furthermore, the model-guided strategy reveals that nanoscale La
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