[HTML][HTML] Precision-improving manufacturing produces ordered ultra-fine grained surface layer of tungsten heavy alloy through ultrasonic elliptical vibration cutting

J Bai, Z Xu, L Qian - Materials & Design, 2022 - Elsevier
High-precision and ultra-fine grained surface of tungsten heavy alloy exhibits superior
service performance that is useful for many applications and shows promises for use as key …

Size-dependent yield stress in ultrafine-grained polycrystals: A multiscale discrete dislocation dynamics study

S Lu, Q Kan, M Zaiser, Z Li, G Kang, X Zhang - International Journal of …, 2022 - Elsevier
In this study, the effects of grain size and dislocation source properties on the yield stress of
ultrafine-grained (UFG) polycrystals were examined using three-dimensional multiscale …

Irradiation hardening behavior of high entropy alloys using random field theory informed discrete dislocation dynamics simulation

Y Chen, S Wang, H Feng, W Li, B Liu, J Li, Y Liu… - International Journal of …, 2023 - Elsevier
High entropy alloys (HEAs) exhibit outstanding radiation resistance over traditional alloys
owing to severe lattice distortion, and therefore, would be regarded as candidate materials …

Analytic model of dislocation density evolution in fcc polycrystals accounting for dislocation generation, storage, and dynamic recovery mechanisms

A Hunter, DL Preston - International Journal of Plasticity, 2022 - Elsevier
An analytic model of the evolution of dislocation density in fcc polycrystals is described. The
evolution equations approximately account for most known dislocation storage, dynamic …

Hierarchical multiscale crystal plasticity framework for plasticity and strain hardening of multi-principal element alloys

Q Fang, W Lu, Y Chen, H Feng, PK Liaw, J Li - Journal of the Mechanics …, 2022 - Elsevier
The multi-principal element alloys (MPEAs) exhibit the unprecedented combinations of the
excellent mechanical properties, especially high strength and good ductility. However, the …

Mechanism in scratching of calcium fluoride with magneto-plasticity

Y Guo, J Zhan, WF Lu, H Wang - International Journal of Mechanical …, 2024 - Elsevier
Magnetic field-tuned dislocation plasticity (ie, magneto-plasticity) has attracted growing
attention for assistance to limit the damage evolution of brittle ceramics in the material …

[HTML][HTML] Mechanical response and microstructure evolution of SiC particle-reinforced Al-MMCs under ultrasonic loading

Q Li, S Yuan, Z Li, X Gao, B Chen - Composites Part A: Applied Science and …, 2023 - Elsevier
High volume fraction (≥ 45 vol%) SiC particle-reinforced Al matrix composites are difficult
for forming and manufacture. A simple and efficient method is proposed in this research to …

The interaction mechanisms between dislocations and nano-precipitates in CuFe alloys: A molecular dynamic simulation

H Bao, H Xu, Y Li, H Bai, F Ma - International Journal of Plasticity, 2022 - Elsevier
Molecular dynamics (MD) simulations are employed to study the interaction mechanisms
between dislocations and nano-precipitates in CuFe alloys. On one hand, the critical shear …

Flow behavior and forming characteristics of 2A14 aluminum alloy at cryogenic temperatures

K Huang, S Huang, Y Yi, F Dong, H He - Journal of Alloys and Compounds, 2022 - Elsevier
Cryogenic forming is a promising new method for aluminum alloy manufacturing due to its
improved formability, but the mechanical properties and microstructure evolution of alloys …

Microstructure homogeneity and mechanical property improvement of Inconel 718 alloy fabricated by high-deposition-rate laser directed energy deposition

Z Li, X Ma, C Zhong, S Sui, A Gasser, J Chen - Materials Science and …, 2022 - Elsevier
The nonuniform microstructure of the as-built Inconel 718 superalloy fabricated by high-
deposition-rate laser directed energy deposition (HDR-LDED) brings about heterogeneous …