[HTML][HTML] Hardening-softening of Al0. 3CoCrFeNi high-entropy alloy under nanoindentation

Q Guo, H Hou, Y Pan, X Pei, Z Song, PK Liaw, Y Zhao - Materials & Design, 2023 - Elsevier
The competition and balance mechanism between work hardening resulting from the surge
in dislocations and material softening caused by plastic deformation during contact loading …

Atomic-scale analysis of mechanical and wear characteristics of AlCoCrFeNi high entropy alloy coating on Ni substrate

DQ Doan, VH Nguyen, TV Tran, MT Hoang - Journal of Manufacturing …, 2023 - Elsevier
High entropy alloys (HEAs) are potential materials for coating due to their high hardness and
wear resistance. This study builds molecular dynamics models to explore the mechanical …

Effects of crystal orientation and twin boundary distance on mechanical properties of FeNiCrCoCu high-entropy alloy under nanoindentation

DQ Doan - Materials Chemistry and Physics, 2022 - Elsevier
The effect of crystal orientation and twinning on the mechanical characteristics and
microstructure development of the equiatomic FeNiCrCoCu high-entropy alloy is explored …

Deformation and machining mechanism of nanocrystalline NiCoCrFe high entropy alloys

TX Bui, TH Fang, CI Lee - Journal of Alloys and Compounds, 2022 - Elsevier
The effect of composition, grain sizes (GSs), and cutting depths on the deformation
behaviors and subsurface damages of scratched NiCoCrFe high entropy alloys are …

Effect of vibration parameters on the material removal characteristics of high-entropy alloy in scratching

DQ Doan, TH Fang - International Journal of Mechanical Sciences, 2022 - Elsevier
Although vibration-assisted scratching achieves higher machining efficiency than
conventional scratching, its microstructural behavior is still unclear. In the present work, the …

Plastic deformation in nanoindentation of Alx (CuCrFeNi) 1− x high entropy alloy

HG Nguyen, TH Fang - Journal of Alloys and Compounds, 2023 - Elsevier
The molecular dynamics approach is utilized to examine the deformation mechanism and
evolutionary patterns of mechanical behavior in the Al x (CuCrFeNi) 1− x high-entropy alloy …

Structural transformation and strain localization at twin boundaries in Al0. 4CoCrFeNi high-entropy alloy

DQ Doan, TH Fang, TH Chen - Applied Surface Science, 2022 - Elsevier
Surface nanotribological properties and subsurface damage of Al 0.4 CoCrFeNi high-
entropy alloy during the nano-scratching processes are investigated using molecular …

Dislocation emission and propagation under a nano-indenter in a model high entropy alloy

CJ Ruestes, D Farkas - Computational Materials Science, 2022 - Elsevier
The nanoindentation response of a FeNiCrCoCu high-entropy alloy is explored by means of
atomistic simulations. In order to study the role of compositional complexity, we compare the …

Assessing strength of phases in a quadruplex high entropy alloy via high-throughput nanoindentation to clarify origins of strain hardening

J Weiss, E Vasilev, M Knezevic - Materials Characterization, 2024 - Elsevier
This paper describes the main findings from an experimental investigation into local and
overall strength and fracture behavior of a microstructurally flexible, quadruplex, high …

Influences of grain size, temperature, and strain rate on mechanical properties of Al0. 3CoCrFeNi high–entropy alloys

TN Vu, VT Pham, TH Fang - Materials Science and Engineering: A, 2022 - Elsevier
This study investigates the mechanical properties and deformation behaviours of Al 0.3
CoCrFeNi high-entropy alloys (HEA) under tension tests by using molecular dynamics (MD) …