A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys

Jamieson Brechtl; Shuying Chen; Chanho Lee; Yunzhu Shi; Rui Feng; Xie Xie; David Hamblin; Anne M. Coleman; Bradley Straka; Hugh Shortt; R. Jackson Spurling; Peter K. Liaw

doi:10.3390/met10081101

A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys

Jamieson Brechtl, Shuying Chen, Chanho Lee, Yunzhu Shi, Rui Feng, Xie Xie, David Hamblin, Anne M. Coleman, Bradley Straka, Hugh Shortt, R. Jackson Spurling, Peter K. Liaw

Research output: Contribution to journal › Review article › peer-review

76 Scopus citations

Abstract

High-entropy alloys (HEAs) are a novel class of alloys that have many desirable properties. The serrated flow that occurs in high-entropy alloys during mechanical deformation is an important phenomenon since it can lead to significant changes in the microstructure of the alloy. In this article, we review the recent findings on the serration behavior in a variety of high-entropy alloys. Relationships among the serrated flow behavior, composition, microstructure, and testing condition are explored. Importantly, the mechanical-testing type (compression/tension), testing temperature, applied strain rate, and serration type for certain high-entropy alloys are summarized. The literature reveals that the serrated flow can be affected by experimental conditions such as the strain rate and test temperature. Furthermore, this type of phenomenon has been successfully modeled and analyzed, using several different types of analytical methods, including the meanfield theory formalism and the complexity-analysis technique. Importantly, the results of the analyses show that the serrated flow in HEAs consists of complex dynamical behavior. It is anticipated that this review will provide some useful and clarifying information regarding the serrated-flow mechanisms in this material system. Finally, suggestions for future research directions in this field are proposed, such as the effects of irradiation, additives (such as C and Al), the presence of nanoparticles, and twinning on the serrated flow behavior in HEAs.

Original language	English
Article number	1101
Pages (from-to)	1-72
Number of pages	72
Journal	Metals
Volume	10
Issue number	8
DOIs	https://doi.org/10.3390/met10081101
State	Published - Aug 2020
Externally published	Yes

Funding

S.Y.C., C.L., R.F., X.X., and P.K.L. very much appreciate the supports of (1) the US National Science Foundation (DMR1611180 and 1809640) and (2) the US Army Research Office (W911NF-13-1-0438 and W911NF19-2-0049), with J. Yang, G. Shiflet, D. Farkas, M. P. Bakas, D. M. Stepp, and S. Mathaudhu as program managers. Funding: S.Y.C., C.L., R.F., X.X., and P.K.L. very much appreciate the supports of (1) the US National Science Foundation (DMR1611180 and 1809640) and (2) the US Army Research Office (W911NF-13-1-0438 and W911NF-19-2-0049), with J. Yang, G. Shiflet, D. Farkas, M. P. Bakas, D. M. Stepp, and S. Mathaudhu as program managers.

Funders	Funder number
US Army Research Office
US National Science Foundation
National Science Foundation	DMR1611180, 1809640
Army Research Office	W911NF-19-2-0049, W911NF-13-1-0438

Keywords

Data analysis
High-entropy alloys
Microstructure
Serrated flow

Access to Document

10.3390/met10081101

Cite this

@article{489e97724fc646209e3c859d93cf37af,

title = "A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys",

abstract = "High-entropy alloys (HEAs) are a novel class of alloys that have many desirable properties. The serrated flow that occurs in high-entropy alloys during mechanical deformation is an important phenomenon since it can lead to significant changes in the microstructure of the alloy. In this article, we review the recent findings on the serration behavior in a variety of high-entropy alloys. Relationships among the serrated flow behavior, composition, microstructure, and testing condition are explored. Importantly, the mechanical-testing type (compression/tension), testing temperature, applied strain rate, and serration type for certain high-entropy alloys are summarized. The literature reveals that the serrated flow can be affected by experimental conditions such as the strain rate and test temperature. Furthermore, this type of phenomenon has been successfully modeled and analyzed, using several different types of analytical methods, including the meanfield theory formalism and the complexity-analysis technique. Importantly, the results of the analyses show that the serrated flow in HEAs consists of complex dynamical behavior. It is anticipated that this review will provide some useful and clarifying information regarding the serrated-flow mechanisms in this material system. Finally, suggestions for future research directions in this field are proposed, such as the effects of irradiation, additives (such as C and Al), the presence of nanoparticles, and twinning on the serrated flow behavior in HEAs.",

keywords = "Data analysis, High-entropy alloys, Microstructure, Serrated flow",

author = "Jamieson Brechtl and Shuying Chen and Chanho Lee and Yunzhu Shi and Rui Feng and Xie Xie and David Hamblin and Coleman, {Anne M.} and Bradley Straka and Hugh Shortt and Spurling, {R. Jackson} and Liaw, {Peter K.}",

note = "Publisher Copyright: {\textcopyright} 2020 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2020",

month = aug,

doi = "10.3390/met10081101",

language = "English",

volume = "10",

pages = "1--72",

journal = "Metals",

issn = "2075-4701",

publisher = "MDPI",

number = "8",

}

TY - JOUR

T1 - A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys

AU - Brechtl, Jamieson

AU - Chen, Shuying

AU - Lee, Chanho

AU - Shi, Yunzhu

AU - Feng, Rui

AU - Xie, Xie

AU - Hamblin, David

AU - Coleman, Anne M.

AU - Straka, Bradley

AU - Shortt, Hugh

AU - Spurling, R. Jackson

AU - Liaw, Peter K.

PY - 2020/8

Y1 - 2020/8

N2 - High-entropy alloys (HEAs) are a novel class of alloys that have many desirable properties. The serrated flow that occurs in high-entropy alloys during mechanical deformation is an important phenomenon since it can lead to significant changes in the microstructure of the alloy. In this article, we review the recent findings on the serration behavior in a variety of high-entropy alloys. Relationships among the serrated flow behavior, composition, microstructure, and testing condition are explored. Importantly, the mechanical-testing type (compression/tension), testing temperature, applied strain rate, and serration type for certain high-entropy alloys are summarized. The literature reveals that the serrated flow can be affected by experimental conditions such as the strain rate and test temperature. Furthermore, this type of phenomenon has been successfully modeled and analyzed, using several different types of analytical methods, including the meanfield theory formalism and the complexity-analysis technique. Importantly, the results of the analyses show that the serrated flow in HEAs consists of complex dynamical behavior. It is anticipated that this review will provide some useful and clarifying information regarding the serrated-flow mechanisms in this material system. Finally, suggestions for future research directions in this field are proposed, such as the effects of irradiation, additives (such as C and Al), the presence of nanoparticles, and twinning on the serrated flow behavior in HEAs.

AB - High-entropy alloys (HEAs) are a novel class of alloys that have many desirable properties. The serrated flow that occurs in high-entropy alloys during mechanical deformation is an important phenomenon since it can lead to significant changes in the microstructure of the alloy. In this article, we review the recent findings on the serration behavior in a variety of high-entropy alloys. Relationships among the serrated flow behavior, composition, microstructure, and testing condition are explored. Importantly, the mechanical-testing type (compression/tension), testing temperature, applied strain rate, and serration type for certain high-entropy alloys are summarized. The literature reveals that the serrated flow can be affected by experimental conditions such as the strain rate and test temperature. Furthermore, this type of phenomenon has been successfully modeled and analyzed, using several different types of analytical methods, including the meanfield theory formalism and the complexity-analysis technique. Importantly, the results of the analyses show that the serrated flow in HEAs consists of complex dynamical behavior. It is anticipated that this review will provide some useful and clarifying information regarding the serrated-flow mechanisms in this material system. Finally, suggestions for future research directions in this field are proposed, such as the effects of irradiation, additives (such as C and Al), the presence of nanoparticles, and twinning on the serrated flow behavior in HEAs.

KW - Data analysis

KW - High-entropy alloys

KW - Microstructure

KW - Serrated flow

UR - http://www.scopus.com/inward/record.url?scp=85089558903&partnerID=8YFLogxK

U2 - 10.3390/met10081101

DO - 10.3390/met10081101

M3 - Review article

AN - SCOPUS:85089558903

SN - 2075-4701

VL - 10

SP - 1

EP - 72

JO - Metals

JF - Metals

IS - 8

M1 - 1101

ER -

A review of the serrated-flow phenomenon and its role in the deformation behavior of high-entropy alloys

Abstract

Funding

Keywords

Access to Document

Other files and links

Fingerprint

Cite this