Search Results - "Mushongera, Leslie T."
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Influence of Grain Boundary Character on Dopants Segregation in Nanocrystalline Aluminum
Published in Metals and materials international (2023)“…This work focuses on understanding the influence of grain boundary (GB) character on magnesium (Mg) dopants segregation in nanocrystalline (NC) aluminum (Al)…”
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2
Unraveling the effects of interface orientation and crystallography on the deformation mechanisms of accumulative roll-bonded Cu-Nb–multilayered nanocomposites using molecular dynamics
Published in Journal of molecular modeling (01-06-2022)“…This work elucidates the effect of interface orientation, loading mode, and crystallography on the deformation mechanisms of Cu-Nb–multilayered nanocomposites…”
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3
Assessment of thermodynamic stability of sapphire in eutectic molten chloride environment
Published in Journal of the American Ceramic Society (01-05-2022)“…The continued development of molten salt reactors and concentrated solar power plants requires highly efficient and stable instruments that can efficiently…”
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4
Thermodynamic stabilization of nanocrystalline aluminum
Published in Journal of materials science (01-09-2021)“…Nanocrystalline metals are generally unstable due to a large volume fraction of high-energy grain boundaries associated with a small grain size. Preferential…”
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5
Local damage in grain boundary stabilized nanocrystalline aluminum
Published in Materials letters (01-10-2021)“…•Grain boundary segregation.•Plastic deformation.•Nanocrystalline aluminum. The excess free volume in grain boundaries of pure nanocrystalline aluminum leads…”
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Prediction of cyclic damage in metallic alloys with crystal plasticity modeling enhanced by machine learning
Published in Materialia (01-05-2022)“…A computational approach consisting of two frameworks is introduced to construct a fatigue model for the Inconel 718 superalloy. Due to the extreme nature of…”
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Icosahedral cluster formation in Ni-based hydrogen separation amorphous membranes and the effect of hydrogenation—a first principles structural study
Published in Journal of molecular modeling (01-01-2022)“…The demand for hydrogen is increasing due to commercialization of fuel cells. Palladium (Pd)-based crystalline membranes have been used for separation of…”
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8
Effect of Interface Orientation and Loading Direction on the Mechanical Response of Cu-Nb Multilayered Nanocomposites
Published in Journal of materials engineering and performance (01-04-2023)“…This work elucidates the effect of interface orientation, loading mode, and crystallography on the deformation mechanisms of Cu-Nb multilayered nanocomposites…”
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9
Multiscale Experimentation and Modeling of Localized Damage in Diffusion‐Bonded 316L Stainless Steel Structures
Published in Advanced engineering materials (01-11-2023)“…Herein, experimental and modeling tools are employed to understand the joint area for a diffusion‐bonded 316L stainless steel. Detailed microstructure…”
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10
Fatigue Behavior of Additively Manufactured IN718 with Columnar Grains
Published in Advanced engineering materials (01-03-2021)“…Fatigue failure of polycrystalline materials is often dominated by crack initiation processes, which are strongly influenced by salient features existing in…”
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Interfacial Interactions in Particle‐Induced Abnormal Grain Growth
Published in Advanced engineering materials (01-10-2023)“…The presence of secondary particles to polycrystalline alloys results in kinetic stabilization of the grain boundaries, which maintains desirable fine…”
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Multiphysics approaches for modeling nanostructural evolution during physical vapor deposition of phase-separating alloy films
Published in Computational materials science (01-11-2021)“…Physical vapor deposition of phase-separating alloy films yields a rich variety of distinct self-assembled nanostructures depending on the deposition rate and…”
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13
Interaction of Grain Boundaries and Particles in Uncooperative Migration
Published in Advanced engineering materials (01-03-2022)“…The ubiquitous motion of grain boundaries is responsible for determining the unique microstructural patterns and stability of polycrystalline materials. By…”
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14
Local damage in grain boundary stabilized nanocrystalline aluminum
Published in Materials letters (01-06-2021)“…The excess free volume in grain boundaries of pure nanocrystalline aluminum leads to the grain coarsening, which degrades their desirable mechanical…”
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15
The Interaction of Point Defects with Stress Fields Generated by Persistent Slip Bands in Face‐Centered Cubic Nickel
Published in Advanced engineering materials (01-12-2020)“…Using the phase‐field modeling approach, the evolution of persistent slip bands (PSBs) in nominally defect‐free pure nickel (Ni) single crystals is described…”
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16
Life Prediction for Directed Energy Deposition‐Manufactured 316L Stainless Steel using a Coupled Crystal Plasticity–Machine Learning Framework
Published in Advanced engineering materials (01-05-2023)“…Additively manufactured stainless steels have become increasingly popular due to their desirable properties, but their mechanical behavior in structural parts…”
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17
Influence of Grain Boundary Character on Dopants Segregation in Nanocrystalline Aluminum
Published in Metals and materials international (29-05-2022)“…Not provided…”
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18
Crystallization and hydrogen absorption in a Ni32Nb28Zr30Fe10 melt spun alloy and correlation with icosahedral clusters
Published in International journal of hydrogen energy (28-02-2022)“…The crystallization and the hydrogen absorption properties of a Ni32Nb28Zr30Fe10 melt spun ribbon were investigated. X-ray diffraction measurements reveal that…”
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19
Grain boundary relaxation in doped nano-grained aluminum
Published in Materials today communications (01-12-2021)“…Simulation studies are done to understand the role of dopants that segregate preferentially to grain boundaries on the stability of nanocrystalline aluminum. A…”
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20
Strain-Induced γ'-Coarsening During Aging of Ni-Base Superalloys Under Uniaxial Load: Modeling and Analysis
Published 01-01-2016“…Turbine blades which are used in the hot paths of aerospace or industrial gas turbines are usually manufactured as casted single crystalline parts. However,…”
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