The effect of annealing on kink band formation in Ag/Fe nanolaminates

Yifan Zhang; Thomas J. Nizolek; Laurent Capolungo; Nan Li; John S. Carpenter; Rodney J. McCabe

doi:10.1016/j.scriptamat.2023.115623

The effect of annealing on kink band formation in Ag/Fe nanolaminates

Yifan Zhang
, Thomas J. Nizolek
, Laurent Capolungo
, Nan Li
, John S. Carpenter
, Rodney J. McCabe

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Kink banding is a common, though not well understood, failure mechanism in anisotropic materials such as nano metallic laminates (NMLs). In this work, we investigate the effect of annealing on kink band (KB) formation in Ag/Fe NMLs prepared by accumulative roll bonding (ARB) using in situ micropillar compression, scanning/transmission electron microscopy (S/TEM), and transmission Kikuchi diffraction (TKD) analyses. Our results show that annealing increases the KB initiation strain, decreases the probability of KB formation, and decreases the load drop magnitude accompanying kink banding in Ag/Fe NMLs. Post-compression analyses reveal that annealing facilitates more uniform deformation of pillars and affects the formation of geometrically necessary grain boundaries (GNBs) near the kink band boundary (KBB). Compared to its as-rolled counterpart, annealed Ag/Fe has wider KBs with blunter KBBs.

Original language	English
Article number	115623
Journal	Scripta Materialia
Volume	235
DOIs	https://doi.org/10.1016/j.scriptamat.2023.115623
State	Published - Oct 2023

Access to Document

10.1016/j.scriptamat.2023.115623

Cite this

@article{4d90bf73dd784c9ea9afdf66c143ff5b,

title = "The effect of annealing on kink band formation in Ag/Fe nanolaminates",

abstract = "Kink banding is a common, though not well understood, failure mechanism in anisotropic materials such as nano metallic laminates (NMLs). In this work, we investigate the effect of annealing on kink band (KB) formation in Ag/Fe NMLs prepared by accumulative roll bonding (ARB) using in situ micropillar compression, scanning/transmission electron microscopy (S/TEM), and transmission Kikuchi diffraction (TKD) analyses. Our results show that annealing increases the KB initiation strain, decreases the probability of KB formation, and decreases the load drop magnitude accompanying kink banding in Ag/Fe NMLs. Post-compression analyses reveal that annealing facilitates more uniform deformation of pillars and affects the formation of geometrically necessary grain boundaries (GNBs) near the kink band boundary (KBB). Compared to its as-rolled counterpart, annealed Ag/Fe has wider KBs with blunter KBBs.",

author = "Yifan Zhang and Nizolek, \{Thomas J.\} and Laurent Capolungo and Nan Li and Carpenter, \{John S.\} and McCabe, \{Rodney J.\}",

year = "2023",

month = oct,

doi = "10.1016/j.scriptamat.2023.115623",

language = "English",

volume = "235",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - The effect of annealing on kink band formation in Ag/Fe nanolaminates

AU - Zhang, Yifan

AU - Nizolek, Thomas J.

AU - Capolungo, Laurent

AU - Li, Nan

AU - Carpenter, John S.

AU - McCabe, Rodney J.

PY - 2023/10

Y1 - 2023/10

N2 - Kink banding is a common, though not well understood, failure mechanism in anisotropic materials such as nano metallic laminates (NMLs). In this work, we investigate the effect of annealing on kink band (KB) formation in Ag/Fe NMLs prepared by accumulative roll bonding (ARB) using in situ micropillar compression, scanning/transmission electron microscopy (S/TEM), and transmission Kikuchi diffraction (TKD) analyses. Our results show that annealing increases the KB initiation strain, decreases the probability of KB formation, and decreases the load drop magnitude accompanying kink banding in Ag/Fe NMLs. Post-compression analyses reveal that annealing facilitates more uniform deformation of pillars and affects the formation of geometrically necessary grain boundaries (GNBs) near the kink band boundary (KBB). Compared to its as-rolled counterpart, annealed Ag/Fe has wider KBs with blunter KBBs.

AB - Kink banding is a common, though not well understood, failure mechanism in anisotropic materials such as nano metallic laminates (NMLs). In this work, we investigate the effect of annealing on kink band (KB) formation in Ag/Fe NMLs prepared by accumulative roll bonding (ARB) using in situ micropillar compression, scanning/transmission electron microscopy (S/TEM), and transmission Kikuchi diffraction (TKD) analyses. Our results show that annealing increases the KB initiation strain, decreases the probability of KB formation, and decreases the load drop magnitude accompanying kink banding in Ag/Fe NMLs. Post-compression analyses reveal that annealing facilitates more uniform deformation of pillars and affects the formation of geometrically necessary grain boundaries (GNBs) near the kink band boundary (KBB). Compared to its as-rolled counterpart, annealed Ag/Fe has wider KBs with blunter KBBs.

UR - https://www.scopus.com/pages/publications/85166732066

U2 - 10.1016/j.scriptamat.2023.115623

DO - 10.1016/j.scriptamat.2023.115623

M3 - Article

SN - 1359-6462

VL - 235

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 115623

ER -

The effect of annealing on kink band formation in Ag/Fe nanolaminates

Abstract

Access to Document

Fingerprint

Cite this