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20142024
most citedElucidating dislocation core structures in titanium nitride through high-resolution imaging and atomistic simulations

41 citations

Showing cond-mat.mtrl-sciShow all

11 papers · 1 filter

cond-mat.mtrl-sci2024★ 5 cited

Controlled polymorphic competition -- a path to tough and hard ceramics

D. G. Sangiovanni, A. Kjellén, F. Trybel +4

From nanoscale devices including sensors, electronics, or biocompatible coatings to macroscale structural, automotive or aerospace components, fundamental understanding of plastici…

cond-mat.mtrl-sci2022★ 41 cited

Elucidating dislocation core structures in titanium nitride through high-resolution imaging and atomistic simulations

J. Salamania, D. G. Sangiovanni, A. Kraych +11

Although titanium nitride (TiN) is among the most extensively studied and thoroughly characterized thin-film ceramic materials, detailed knowledge of relevant dislocation core stru…

cond-mat.mtrl-sci2021★ 19 cited

Pseudoelastic deformation in Mo-based refractory multi-principal element alloys

Aayush Sharma, Prashant Singh, Tanner Kirk +5

Phase diagrams supported by density functional theory methods can be crucial for designing high-entropy alloys that are subset of multi-principalelement alloys. We present phase…

cond-mat.mtrl-sci2021★ 34 cited

On the martensitic transformation in FeMnCoCr high-entropy alloy

Prashant Singh, Sezer Picak, Aayush Sharma +4

High-entropy alloys (HEAs), and even medium-entropy alloys (MEAs), are an intriguing class of materials in that structure and property relations can be controlled via alloying and…

cond-mat.mtrl-sci2021★ 7 cited

Neural-networks model for force prediction in multi-principal-element alloys

Rahul Singh, Prashant Singh, Aayush Sharma +6

Atomistic simulations can provide useful insights into the physical properties of multi-principal-element alloys. However, classical potentials mostly fail to capture key quantum (…

cond-mat.mtrl-sci2019★ 39 cited

Strength, transformation toughening and fracture dynamics of rocksalt-structure Ti1-xAlxN (0 <= x <= 0.75) alloys

D. G. Sangiovanni, F. Tasnadi, L. J. S. Johnson +2

Ab initio-calculated ideal strength and toughness describe the upper limits for mechanical properties attainable in real systems and can, therefore, be used in selection criteria f…

cond-mat.mtrl-sci2019★ 3 cited

Mechanical properties of VMoNO as a function of oxygen concentration: toward development of hard and tough refractory oxynitrides

Daniel Edström, Davide G. Sangiovanni, Ludvig Landälv +5

Improved toughness is a central goal in the development of wear-resistant refractory ceramic coatings. Extensive theoretical and experimental research has revealed that NaCl struct…

cond-mat.mtrl-sci2019★ 6 cited

Phase composition and transformations in magnetron-sputtered (Al,V)2O3 coatings

L. Landälv, C-F. Carlström, J. Lu +7

Coatings of (Al1-xVx)2O3, with x ranging from 0 to 1, were deposited by pulsed DC reactive sputter deposition on Si(100) at a temperature of 550 °C. XRD showed three different crys…

cond-mat.mtrl-sci2019

Understanding quality control of hard metals in industry -- A quantum mechanics approach

Martina Lattemann, Ruiwen Xie, Raquel Lizárraga +2

For many decades, the magnetic saturation of, e.g. hard metals (HM) such as WC-Co-based cemented carbides, has been used as process and quality control in industry to ensure consis…

cond-mat.mtrl-sci2015★ 39 cited

From solid solution to cluster formation of Fe and Cr in -Zr

P. A. Burr, M. R. Wenman, B. Gault +6

To understand the mechanisms by which Fe and Cr additions increase the corrosion rate of irradiated Zr alloys, a combination of experimental (atom probe tomography, x-ray diffracti…

cond-mat.mtrl-sci2014★ 17 cited

Effect of bombarding steel with Xe ions on the surface nanostructure and on pulsed plasma nitriding process

S. Cucatti, E. A. Ochoa, M. Morales +7

The modification of steel (AISI 316L and AISI 4140) surface morphology and underlying inter-crystalline grains strain due to Xe ion bombardment are reported to affect nitrogen…