Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures

Jongun Moon; Elena Tabachnikova; Sergii Shumilin; Tetiana Hryhorova; Yuri Estrin; Jamieson Brechtl; Peter K. Liaw; Wenqing Wang; Karin A. Dahmen; Hyoung Seop Kim

doi:10.1103/PhysRevMaterials.5.083601

Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures

Jongun Moon, Elena Tabachnikova, Sergii Shumilin, Tetiana Hryhorova, Yuri Estrin, Jamieson Brechtl, Peter K. Liaw, Wenqing Wang, Karin A. Dahmen, Hyoung Seop Kim

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

29 Scopus citations

Abstract

We report an analysis of the discontinuous plastic flow of a multiprincipal-element alloy, Co17.5Cr12.5Fe55Ni10Mo5 (atomic percent, at. %), in the temperature range of 0.5-4.2 K showing serrated deformation curves. Using the analytical techniques, we studied the statistics of the stress drops associated with the unstable plastic flow. The analysis showed that the complexity and heterogeneity of a discontinuous plastic flow were reduced when the temperature was lowered. This behavior was associated with the effects of dynamic recovery and adiabatic heating on the dislocation-density evolution.

Original language	English
Article number	083601
Journal	Physical Review Materials
Volume	5
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevMaterials.5.083601
State	Published - Aug 2021
Externally published	Yes

Funding

The present work was supported by the Korea-Ukraine Bilateral Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and Information and Communication Technology (ICT) (Grant NRF–2018K1A3A1A13087775). The research was also supported by the Creative Materials Discovery Program through the NRF funded by the Ministry of Science and ICT (Grant No. 2016M3D1A1023384), and the NRF grant funded by the Ministry of Science, ICT, and Future Planning (MSIP) (Grant No. NRF-2021R1A2C3006662). P.K.L. acknowledges the support from the U.S. Army Office Project (Grants No. W911NF-13-1-0438 and No. W911NF-19-2-0049) with the program managers, Dr. Michael P. Bakas, Dr. David M. Stepp, and Dr. S. Mathaudhu, and the National Science Foundation (Grants No. DMR-1611180 and 1809640) with the program directors, Dr. Judith Yang, Dr. Gary Shiflet, and Dr. Diana Farkas.

Funders	Funder number
Ministry of Science and Information and Communication Technology
National Science Foundation	DMR-1611180
Directorate for Mathematical and Physical Sciences	1809640
U.S. Army	W911NF-19-2-0049, W911NF-13-1-0438
FP7 Information and Communication Technologies	NRF–2018K1A3A1A13087775
Ministry of Science, ICT and Future Planning	2016M3D1A1023384, NRF-2021R1A2C3006662
National Research Foundation of Korea

Access to Document

10.1103/PhysRevMaterials.5.083601

Cite this

@article{d7b5fae31c1d4cf597307d9ff3d3c802,

title = "Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures",

abstract = "We report an analysis of the discontinuous plastic flow of a multiprincipal-element alloy, Co17.5Cr12.5Fe55Ni10Mo5 (atomic percent, at. %), in the temperature range of 0.5-4.2 K showing serrated deformation curves. Using the analytical techniques, we studied the statistics of the stress drops associated with the unstable plastic flow. The analysis showed that the complexity and heterogeneity of a discontinuous plastic flow were reduced when the temperature was lowered. This behavior was associated with the effects of dynamic recovery and adiabatic heating on the dislocation-density evolution.",

author = "Jongun Moon and Elena Tabachnikova and Sergii Shumilin and Tetiana Hryhorova and Yuri Estrin and Jamieson Brechtl and Liaw, {Peter K.} and Wenqing Wang and Dahmen, {Karin A.} and Kim, {Hyoung Seop}",

note = "Publisher Copyright: {\textcopyright} 2021 American Physical Society.",

year = "2021",

month = aug,

doi = "10.1103/PhysRevMaterials.5.083601",

language = "English",

volume = "5",

journal = "Physical Review Materials",

issn = "2475-9953",

publisher = "American Physical Society",

number = "8",

}

TY - JOUR

T1 - Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures

AU - Moon, Jongun

AU - Tabachnikova, Elena

AU - Shumilin, Sergii

AU - Hryhorova, Tetiana

AU - Estrin, Yuri

AU - Brechtl, Jamieson

AU - Liaw, Peter K.

AU - Wang, Wenqing

AU - Dahmen, Karin A.

AU - Kim, Hyoung Seop

PY - 2021/8

Y1 - 2021/8

N2 - We report an analysis of the discontinuous plastic flow of a multiprincipal-element alloy, Co17.5Cr12.5Fe55Ni10Mo5 (atomic percent, at. %), in the temperature range of 0.5-4.2 K showing serrated deformation curves. Using the analytical techniques, we studied the statistics of the stress drops associated with the unstable plastic flow. The analysis showed that the complexity and heterogeneity of a discontinuous plastic flow were reduced when the temperature was lowered. This behavior was associated with the effects of dynamic recovery and adiabatic heating on the dislocation-density evolution.

AB - We report an analysis of the discontinuous plastic flow of a multiprincipal-element alloy, Co17.5Cr12.5Fe55Ni10Mo5 (atomic percent, at. %), in the temperature range of 0.5-4.2 K showing serrated deformation curves. Using the analytical techniques, we studied the statistics of the stress drops associated with the unstable plastic flow. The analysis showed that the complexity and heterogeneity of a discontinuous plastic flow were reduced when the temperature was lowered. This behavior was associated with the effects of dynamic recovery and adiabatic heating on the dislocation-density evolution.

UR - http://www.scopus.com/inward/record.url?scp=85112378665&partnerID=8YFLogxK

U2 - 10.1103/PhysRevMaterials.5.083601

DO - 10.1103/PhysRevMaterials.5.083601

M3 - Article

AN - SCOPUS:85112378665

SN - 2475-9953

VL - 5

JO - Physical Review Materials

JF - Physical Review Materials

IS - 8

M1 - 083601

ER -

Unraveling the discontinuous plastic flow of a Co-Cr-Fe-Ni-Mo multiprincipal-element alloy at deep cryogenic temperatures

Abstract

Funding

Access to Document

Other files and links

Fingerprint

Cite this