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pro vyhledávání: '"Rupert, Timothy"'
The discovery of complex concentrated alloys has unveiled materials with diverse atomic environments, prompting the exploration of solute segregation beyond dilute alloys. Data-driven methods offer promising for modeling segregation in such chemicall
Externí odkaz:
http://arxiv.org/abs/2404.06499
Grain boundary structural transitions can lead to significant changes in the properties and performance of materials. In multi-principal element alloys, understanding these transitions becomes complex due to phenomena such as local chemical ordering
Externí odkaz:
http://arxiv.org/abs/2312.14344
Accurate segmentation of interconnected line networks, such as grain boundaries in polycrystalline material microstructures, poses a significant challenge due to the fragmented masks produced by conventional computer vision algorithms, including conv
Externí odkaz:
http://arxiv.org/abs/2312.09968
Amorphous interfacial complexions are particularly resistant to radiation damage and have been primarily studied in alloys with good glass-forming ability, yet recent reports suggest that these features can form even in immiscible alloys such as Cu-T
Externí odkaz:
http://arxiv.org/abs/2309.13474
Segregation engineering has emerged as a promising pathway towards designing thermally stable nanocrystalline alloys with enhanced mechanical properties. However, the compositional and processing space for solute stabilized microstructures is vast, t
Externí odkaz:
http://arxiv.org/abs/2308.16174
Stress-driven segregation at dislocations can lead to structural transitions between different linear complexion states. In this work, we examine how platelet array linear complexions influence dislocation motion and quantify the associated strengthe
Externí odkaz:
http://arxiv.org/abs/2308.16117
Linear complexions are stable defect states, where the stress field associated with a dislocation induces a local phase transformation that remains restricted to nanoscale dimensions. As these complexions are born at the defects which control plastic
Externí odkaz:
http://arxiv.org/abs/2308.15744
Stabilization of grain structure is important for nanocrystalline alloys, and grain boundary segregation is a common approach to restrict coarsening. Doping can alter grain boundary structure, with high temperature states such as amorphous complexion
Externí odkaz:
http://arxiv.org/abs/2306.07410
Autor:
Garg, Pulkit, Rupert, Timothy J.
Amorphous grain boundary complexions act as toughening features within a microstructure because they can absorb dislocations more efficiently than traditional grain boundaries. This toughening effect should be a strong function of the local internal
Externí odkaz:
http://arxiv.org/abs/2305.03805
Publikováno v:
Nat Commun 15, 3879 (2024)
Diffusion involving atom transport from one location to another governs many important processes and behaviors such as precipitation and phase nucleation. Local chemical complexity in compositionally complex alloys poses challenges for modeling atomi
Externí odkaz:
http://arxiv.org/abs/2304.02957