Growth twins and deformation twins in metals

IJ Beyerlein, X Zhang, A Misra - Annual Review of Materials …, 2014 - annualreviews.org
This article reviews recent basic research on two classes of twins: growth twins and
deformation twins. We focus primarily on studies that aim to understand, via experiments …

Nanoindentation of silver nanowires

X Li, H Gao, CJ Murphy, KK Caswell - Nano letters, 2003 - ACS Publications
The hardness and elastic modulus of a silver nanowire was measured using a
nanoindenter. It was found that the silver nanowire has comparable hardness and elastic …

High strength, epitaxial nanotwinned Ag films

D Bufford, H Wang, X Zhang - Acta Materialia, 2011 - Elsevier
Epitaxial silver films with (111) and (110) orientations were deposited by magnetron
sputtering onto silicon (111) and (110) substrates, respectively. High density growth twins …

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 …

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 …

Interaction between dislocations and grain boundaries under an indenter–a molecular dynamics simulation

A Hasnaoui, PM Derlet, H Van Swygenhoven - Acta Materialia, 2004 - Elsevier
Large-scale molecular dynamics simulations of nanocrystalline Au are used to investigate
the interaction between dislocations emitted under an indenter and the nearby grain …

Twinning effects on strength and plasticity of metallic materials

J Wang, X Zhang - Mrs Bulletin, 2016 - cambridge.org
Twins are domain crystals inside their parent crystals, where they share some of the same
crystal lattice points in a symmetrical manner. The formation and growth of twins result in …

[HTML][HTML] Nanoindentation of single crystalline Mo: Atomistic defect nucleation and thermomechanical stability

FJ Domínguez-Gutiérrez, S Papanikolaou… - Materials Science and …, 2021 - Elsevier
The mechanical responses of single crystalline Body-Centered Cubic (BCC) metals, such as
molybdenum (Mo), outperform other metals at high temperatures, so much so that they are …

Nanoscratching of iron: a molecular dynamics study of the influence of surface orientation and scratching direction

Y Gao, A Brodyanski, M Kopnarski… - Computational Materials …, 2015 - Elsevier
Using molecular dynamics simulation we study scratching of Fe crystals by a hard repulsive
tip. Three surface orientations–(1 0 0),(1 1 0), and (1 1 1)–are studied with two scratch …

A coupled atomistics and discrete dislocation plasticity simulation of nanoindentation into single crystal thin films

RE Miller, LE Shilkrot, WA Curtin - Acta Materialia, 2004 - Elsevier
The phenomenon of 2D nanoindentation of circular “Brinell” indenter into a single crystal
metal thin film bonded to a rigid substrate is investigated. The simulation method is the …