☆ 4.5 Article

First Principles Investigation of the Effects of Chemical Short-Range Ordering Clusters on the Ideal Tensile Strength and Ductility of Aluminum Alloys

METALS (2022)

Related references

Note: Only part of the references are listed.

Article Materials Science, Multidisciplinary

Correlation between precipitates evolution and mechanical properties of Al-Sc-Zr alloy with Er additions

Li Liu et al.

Summary: The study investigates the correlation between precipitates evolution and mechanical properties of Al-Sc-Zr alloy with Er additions during isothermal ageing. Results show that Er additions significantly improve hardness by increasing the nucleation rate of Al-3(Er,Sc,Zr) precipitates, leading to a higher density of fine nanoparticles. First-principles calculations demonstrate energetically favored solute-solute interactions, rationalizing the observed precipitate structure and formation mechanism.

JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY (2022)

Add to Collection

Article Nanoscience & Nanotechnology

Effect of solute clusters on plastic instability in magnesium alloys

Risheng Pei et al.

Summary: The interaction between solute atoms and matrix dislocations during plastic deformation is crucial for understanding the flow behavior of materials. In this study, Luders band formation and dynamic strain aging were investigated in a Mg-1%Mn-1%Nd (wt.%) alloy subjected to uniaxial tension at different temperatures. The microstructure of the alloy was analyzed using three dimensional atom probe tomography, and the role of solute clusters in triggering plastic instability was revealed.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2022)

Add to Collection

Article Nanoscience & Nanotechnology

Room-temperature-deformation-induced chemical short-range ordering in a supersaturated ultrafine-grained Al-Zn alloy

Z. Z. Song et al.

Summary: This study reports chemical short-range ordering in an ultrafine-grained supersaturated Al-Zn alloy introduced by severe plastic deformation at room temperature, resulting in an ordered L1(0)-AlZn structure with dimensions of 1-3 nm. Vacancies introduced by severe plastic deformation are believed to play an important role in the formation of chemical short-range ordering at room temperature.

SCRIPTA MATERIALIA (2022)

Add to Collection

Article Chemistry, Physical

The origins of segregation behaviors of solute atoms and their effect on the strength of α-Al//θ′-Al2Cu interfaces in Al-Cu alloys

Xiangkai Chen et al.

Summary: This study investigates the segregation and strengthening behaviors of solute atoms Cd, Si, Sc, and Zr at different interfaces using first-principles calculations. The results show that the segregation behaviors are primarily determined by chemical contributions, while both chemical and mechanical contributions affect the segregation behaviors at some interfaces. The strengthening effects are mainly dominated by the chemical contribution, with Sc and Zr leading to an increase in strength and Cd causing a weakening effect. The findings provide insights into improving the mechanical properties of Al-Cu alloys.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2022)

Add to Collection

Article Materials Science, Multidisciplinary

Solute cluster evolution during deformation and high strain hardening capability in naturally aged Al-Zn-Mg alloy

Peng Zhang et al.

Summary: The study investigates the effects of solute clusters on the mechanical properties of a commercial Al-Zn-Mg alloy during natural aging (NA). It is found that dense solute clusters enhance the yield strength and strain hardening ability of the alloy without affecting dislocation density evolution. Solute clusters undergo a dissolution-to-coarsening transition during deformation, potentially contributing to the high strain hardening rate observed.

ACTA MATERIALIA (2021)

Add to Collection

Article Materials Science, Multidisciplinary

Design of solute clustering during thermomechanical processing of AA6016 Al-Mg-Si alloy

Suqin Zhu et al.

Summary: The study focuses on solute clustering in Al alloys and demonstrates the effects of pre-ageing treatment on clustering states and alloy properties. Utilizing atom probe tomography and density functional theory simulations, the atomic-scale microstructure arising from the thermomechanical process is revealed.

ACTA MATERIALIA (2021)

Add to Collection

Article Multidisciplinary Sciences

Direct observation of chemical short-range order in a medium-entropy alloy

Xuefei Chen et al.

Summary: The study provides direct experimental evidence of chemical short-range atomic-scale ordering (CSRO) in a VCoNi medium-entropy alloy through diffraction and electron microscopy analysis. The research demonstrates that using specific crystallographic directions can reveal CSRO in face-centred-cubic VCoNi concentrated solution, offering insights into atomic packing configuration and dislocation interactions enhanced by CSROs.

NATURE (2021)

Add to Collection

Article Materials Science, Multidisciplinary

Chemical short range order strengthening in BCC complex concentrated alloys

E. Antillon et al.

Summary: Atomistic methods were used to anneal two BCC chemically complex alloys to evaluate the effect of chemical short-range order on alloy strength. It was found that annealing led to a softening of the BCC quaternary alloy but had minimal effect on solid solution strengthening in the ternary alloy. Results were modeled using an extension of the Suzuki model of substitutional solid solution strengthening, with good agreement between the model results and direct atomistic simulation data.

ACTA MATERIALIA (2021)

Add to Collection

Article Materials Science, Multidisciplinary

Chemical short range order strengthening in a model FCC high entropy alloy

E. Antillon et al.

ACTA MATERIALIA (2020)

Add to Collection

Article Multidisciplinary Sciences

Short-range order and its impact on the CrCoNi medium-entropy alloy

Ruopeng Zhang et al.

NATURE (2020)

Add to Collection

Article Materials Science, Multidisciplinary

(Al, Zn)3Zr dispersoids assisted η′ precipitation in anAl-Zn-Mg-Cu-Zr alloy

Huan Zhao et al.

MATERIALIA (2020)

Add to Collection

Article Materials Science, Multidisciplinary

Influence of fine scale features on room temperature superplastic behaviour of an ultrafine-grained Al-30Zn alloy

Elena Bobruk et al.

MATERIALS LETTERS (2019)

Add to Collection

Article Multidisciplinary Sciences

Direct imaging of short-range order and its impact on deformation in Ti-6Al

Ruopeng Zhang et al.

SCIENCE ADVANCES (2019)

Add to Collection

Article Chemistry, Physical

On the atomic model of Guinier-Preston zones in Al-Mg-Si-Cu alloys

Siliang Liu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2018)

Add to Collection

Article Chemistry, Physical

Optimization of deformation properties in as-cast copper by microstructural engineering. Part I. microstructure

Kaixuan Chen et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2018)

Add to Collection

Article Materials Science, Multidisciplinary

Crystallographic features of iron-rich nanoparticles in cast Cu-10Sn-2Zn-1.5Fe-0.5Co alloy

Kaixuan Chen et al.

MATERIALS CHARACTERIZATION (2016)

Add to Collection

Article Nanoscience & Nanotechnology

Effect of two-step aging on the mechanical properties of AA2219 DC cast alloy

E. M. Elgallad et al.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING (2015)

Add to Collection

Article Physics, Applied

Elemental separation in nanocrystalline Cu-Al alloys

Y. B. Wang et al.

APPLIED PHYSICS LETTERS (2013)

Add to Collection

Article Nanoscience & Nanotechnology

Fabrication of a nanocomposite from in situ iron nanoparticle reinforced copper alloy

Zidong Wang et al.

NANOTECHNOLOGY (2009)

Add to Collection

Article Materials Science, Multidisciplinary

Characterization of an Al-Cu cast alloy

M. A. Talamantes-Silva et al.

MATERIALS CHARACTERIZATION (2008)

Add to Collection

Article Materials Science, Multidisciplinary

First-principles study of ternary fcc solution phases from special quasirandom structures

Dongwon Shin et al.

PHYSICAL REVIEW B (2007)

Add to Collection

Article Materials Science, Multidisciplinary

Thermodynamic properties of binary hcp solution phases from special quasirandom structures

Dongwon Shin et al.

PHYSICAL REVIEW B (2006)

Add to Collection

© Peeref 2019-2024. All rights reserved.