Impact Factor:

7.6

DOI number:

10.1016/j.mtnano.2018.09.002

Journal:

Materials Today Nano

Abstract:

Face-centered cubic (fcc) metals exhibit outstanding mechanical properties both in small-sized and bulk nanostructures and are thus promising for applications in micro/nano electromechanical systems (M/NEMS). Uncovering the intrinsic deformation mechanisms of small-sized metals is of critical importance for evaluating their feasibility in M/NEMS applications. Recent advances in in situ transmission electron microscopy (TEM)–based mechanical testing techniques open up opportunities for achieving a mechanistic understanding of the atomic-scale deformation mechanisms. This article reviews recent progresses in in situ TEM studies on the various plastic deformation modes of small-sized fcc metals, including dislocation slip and twinning, phase transformation–mediated plasticity, reversible structure formation, diffusion-mediated plasticity, and void-assisted plasticity and fracture. Promising directions for future in situ TEM investigations on fcc metals are also enumerated.

Co-author:

Li Zhong

First Author:

Xiang Wang

Indexed by:

Journal paper

Correspondence Author:

Scott X Mao

Discipline:

Engineering

Document Type:

J

Volume:

2

Page Number:

58-69

Translation or Not:

no

Date of Publication:

2018-09-26

Included Journals:

SCI

Links to published journals:

https://www.sciencedirect.com/science/article/pii/S2588842018301202