Grain growth and the Hall-Petch relationship in a high-entropy FeCrNiCoMn alloy

W. H. Liu; Y. Wu; J. Y. He; T. G. Nieh; Z. P. Lu

doi:10.1016/j.scriptamat.2012.12.002

Grain growth and the Hall-Petch relationship in a high-entropy FeCrNiCoMn alloy

W. H. Liu
, Y. Wu
, J. Y. He
, T. G. Nieh
, Z. P. Lu^*

^*Corresponding author for this work

University of Science and Technology Beijing
University of Tennessee

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

876 Scopus citations

Abstract

A high-entropy FeCoNiCrMn alloy with a single face-centered cubic phase was synthesized and subsequently annealed at different temperatures to systematically investigate the grain growth behavior. It was observed that the growth kinetics could be described by a power law of 3 and the activation energy for growth was about 321.7 kJ mol^-1. The hardness of the alloys was measured as a function of grain size, and the result was found to follow the classical Hall-Petch strengthening, though with a relatively high hardening coefficient.

Original language	English
Pages (from-to)	526-529
Number of pages	4
Journal	Scripta Materialia
Volume	68
Issue number	7
DOIs	https://doi.org/10.1016/j.scriptamat.2012.12.002
State	Published - Apr 2013
Externally published	Yes

Keywords

Grain boundary migration
Grain growth
Hall-Petch effect
High-entropy alloy

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10.1016/j.scriptamat.2012.12.002

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title = "Grain growth and the Hall-Petch relationship in a high-entropy FeCrNiCoMn alloy",

abstract = "A high-entropy FeCoNiCrMn alloy with a single face-centered cubic phase was synthesized and subsequently annealed at different temperatures to systematically investigate the grain growth behavior. It was observed that the growth kinetics could be described by a power law of 3 and the activation energy for growth was about 321.7 kJ mol-1. The hardness of the alloys was measured as a function of grain size, and the result was found to follow the classical Hall-Petch strengthening, though with a relatively high hardening coefficient.",

keywords = "Grain boundary migration, Grain growth, Hall-Petch effect, High-entropy alloy",

author = "Liu, \{W. H.\} and Y. Wu and He, \{J. Y.\} and Nieh, \{T. G.\} and Lu, \{Z. P.\}",

year = "2013",

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doi = "10.1016/j.scriptamat.2012.12.002",

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TY - JOUR

T1 - Grain growth and the Hall-Petch relationship in a high-entropy FeCrNiCoMn alloy

AU - Liu, W. H.

AU - Wu, Y.

AU - He, J. Y.

AU - Nieh, T. G.

AU - Lu, Z. P.

PY - 2013/4

Y1 - 2013/4

N2 - A high-entropy FeCoNiCrMn alloy with a single face-centered cubic phase was synthesized and subsequently annealed at different temperatures to systematically investigate the grain growth behavior. It was observed that the growth kinetics could be described by a power law of 3 and the activation energy for growth was about 321.7 kJ mol-1. The hardness of the alloys was measured as a function of grain size, and the result was found to follow the classical Hall-Petch strengthening, though with a relatively high hardening coefficient.

AB - A high-entropy FeCoNiCrMn alloy with a single face-centered cubic phase was synthesized and subsequently annealed at different temperatures to systematically investigate the grain growth behavior. It was observed that the growth kinetics could be described by a power law of 3 and the activation energy for growth was about 321.7 kJ mol-1. The hardness of the alloys was measured as a function of grain size, and the result was found to follow the classical Hall-Petch strengthening, though with a relatively high hardening coefficient.

KW - Grain boundary migration

KW - Grain growth

KW - Hall-Petch effect

KW - High-entropy alloy

UR - https://www.scopus.com/pages/publications/84872826929

U2 - 10.1016/j.scriptamat.2012.12.002

DO - 10.1016/j.scriptamat.2012.12.002

M3 - 文章

AN - SCOPUS:84872826929

SN - 1359-6462

VL - 68

SP - 526

EP - 529

JO - Scripta Materialia

JF - Scripta Materialia

IS - 7

ER -

Grain growth and the Hall-Petch relationship in a high-entropy FeCrNiCoMn alloy

Abstract

Keywords

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