Atomistic insights into the deformation mechanism of a CoCrNi medium entropy alloy under nanoindentation

D Hua, Q Xia, W Wang, Q Zhou, S Li, D Qian… - International Journal of …, 2021 - Elsevier
Understanding the fundamental of contact-induced behavior in metals is critical for the
studies of associated mechanical properties. Although nanocontact plasticity in the …

Atomistic studies of nanoindentation—A review of recent advances

CJ Ruestes, IA Alhafez, HM Urbassek - Crystals, 2017 - mdpi.com
This review covers areas where our understanding of the mechanisms underlying
nanoindentation has been increased by atomistic studies of the nanoindentation process …

Molecular dynamics simulation of nanoindentation in Al and Fe: On the influence of system characteristics

HT Luu, SL Dang, TV Hoang, N Gunkelmann - Applied Surface Science, 2021 - Elsevier
Indentation is one of the most widely used methods to determine the characteristics of
metallic materials. Molecular dynamics (MD) simulations are a powerful tool to investigate …

Nanoindentation into a high-entropy alloy–An atomistic study

IA Alhafez, CJ Ruestes, EM Bringa… - Journal of Alloys and …, 2019 - Elsevier
The plastic response of a high-entropy alloy is explored by means of simulated
nanoindentation tests. We compare nanoindentation into the Cantor alloy–an equi-atomic …

Effects of high entropy and twin boundary on the nanoindentation of CoCrNiFeMn high-entropy alloy: A molecular dynamics study

S Shuang, S Lu, B Zhang, C Bao, Q Kan, G Kang… - Computational Materials …, 2021 - Elsevier
To study the effects of twin boundary and high-entropy on elastic–plastic behavior of high-
entropy alloys (HEAs), molecular dynamics (MD) was employed to simulate the …

Comparative simulation study of the structure of the plastic zone produced by nanoindentation

Y Gao, CJ Ruestes, DR Tramontina… - Journal of the Mechanics …, 2015 - Elsevier
Using molecular-dynamics simulation, we study nanoindentation in fcc (Cu and Al) and bcc
(Fe and Ta) metals by a spherical indenter and investigate the size of the plastic zone …

The effect of grain orientation on nanoindentation behavior of model austenitic alloy Fe-20Cr-25Ni

T Chen, L Tan, Z Lu, H Xu - Acta Materialia, 2017 - Elsevier
Instrumented nanoindentation was used to investigate the hardness, elastic modulus, and
creep behavior of an austenitic Fe-20Cr-25Ni model alloy at room temperature, with the …

Nanoindentation and nanoscratching of iron: Atomistic simulation of dislocation generation and reactions

Y Gao, CJ Ruestes, HM Urbassek - Computational Materials Science, 2014 - Elsevier
Using molecular-dynamics simulation, we study nanoindentation and scratching in an Fe (1
0 0) surface. We find an indentation hardness of 20 GPa in good agreement with experiment …

Atomistic processes of dislocation generation and plastic deformation during nanoindentation

C Begau, A Hartmaier, EP George, GM Pharr - Acta Materialia, 2011 - Elsevier
To enable plastic deformation during nanoindentation of an initially defect-free crystal, it is
necessary first to produce dislocations. While it is now widely accepted that the nucleation of …

Formation of prismatic loops in AlN and GaN under nanoindentation

H Xiang, H Li, T Fu, C Huang, X Peng - Acta Materialia, 2017 - Elsevier
The formation of prismatic loops in metals has been studied extensively, but the
corresponding research related to ceramics can rarely be found in the literature. In this …