Aging temperature role on precipitation hardening in a non-equiatomic AlCoCrFeNiTi high-entropy alloy

Vickey Nandal; K. Hariharan; R. Sarvesha; Sudhanshu S. Singh; E. Wen Huang; Yao Jen Chang; An Chou Yeh; Suresh Neelakantan; Jayant Jain

doi:10.1080/02670836.2021.1996104

Aging temperature role on precipitation hardening in a non-equiatomic AlCoCrFeNiTi high-entropy alloy

Vickey Nandal, K. Hariharan, R. Sarvesha, Sudhanshu S. Singh, E. Wen Huang, Yao Jen Chang, An Chou Yeh, Suresh Neelakantan^*, Jayant Jain^*

^*Corresponding author for this work

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

4 Scopus citations

Abstract

In the present study, the influence of aging temperature on precipitation hardening in a non-equiatomic Al_0.2Co_1.5CrFeNi_1.5Ti_0.3 high-entropy alloy has been evaluated. The aging curves have been deduced for different aging temperatures (650, 750, and 850°C) as a function of time. The aging response was found to be markedly different with varying aging temperatures. A combined FESEM and transmission electron microscope studies have been performed to understand the evolution of precipitates and their characteristics with aging temperature and time. The variation of precipitate morphology, number density and size of precipitates with aging temperature were correlated with the age-hardening response. Additionally, the role of lattice misfit strain on precipitate morphology has been evaluated.

Original language	English
Pages (from-to)	1270-1279
Number of pages	10
Journal	Materials Science and Technology
Volume	37
Issue number	15
DOIs	https://doi.org/10.1080/02670836.2021.1996104
State	Published - 2021

Keywords

Age hardening
Aging temperature
High-entropy alloys
Microscopy
Precipitate morphologies

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10.1080/02670836.2021.1996104

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title = "Aging temperature role on precipitation hardening in a non-equiatomic AlCoCrFeNiTi high-entropy alloy",

abstract = "In the present study, the influence of aging temperature on precipitation hardening in a non-equiatomic Al0.2Co1.5CrFeNi1.5Ti0.3 high-entropy alloy has been evaluated. The aging curves have been deduced for different aging temperatures (650, 750, and 850°C) as a function of time. The aging response was found to be markedly different with varying aging temperatures. A combined FESEM and transmission electron microscope studies have been performed to understand the evolution of precipitates and their characteristics with aging temperature and time. The variation of precipitate morphology, number density and size of precipitates with aging temperature were correlated with the age-hardening response. Additionally, the role of lattice misfit strain on precipitate morphology has been evaluated.",

keywords = "Age hardening, Aging temperature, High-entropy alloys, Microscopy, Precipitate morphologies",

author = "Vickey Nandal and K. Hariharan and R. Sarvesha and Singh, {Sudhanshu S.} and Huang, {E. Wen} and Chang, {Yao Jen} and Yeh, {An Chou} and Suresh Neelakantan and Jayant Jain",

note = "Publisher Copyright: {\textcopyright} 2021 Institute of Materials, Minerals and Mining.",

year = "2021",

doi = "10.1080/02670836.2021.1996104",

language = "English",

volume = "37",

pages = "1270--1279",

journal = "Materials Science and Technology",

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T1 - Aging temperature role on precipitation hardening in a non-equiatomic AlCoCrFeNiTi high-entropy alloy

AU - Nandal, Vickey

AU - Hariharan, K.

AU - Sarvesha, R.

AU - Singh, Sudhanshu S.

AU - Huang, E. Wen

AU - Chang, Yao Jen

AU - Yeh, An Chou

AU - Neelakantan, Suresh

AU - Jain, Jayant

PY - 2021

Y1 - 2021

N2 - In the present study, the influence of aging temperature on precipitation hardening in a non-equiatomic Al0.2Co1.5CrFeNi1.5Ti0.3 high-entropy alloy has been evaluated. The aging curves have been deduced for different aging temperatures (650, 750, and 850°C) as a function of time. The aging response was found to be markedly different with varying aging temperatures. A combined FESEM and transmission electron microscope studies have been performed to understand the evolution of precipitates and their characteristics with aging temperature and time. The variation of precipitate morphology, number density and size of precipitates with aging temperature were correlated with the age-hardening response. Additionally, the role of lattice misfit strain on precipitate morphology has been evaluated.

AB - In the present study, the influence of aging temperature on precipitation hardening in a non-equiatomic Al0.2Co1.5CrFeNi1.5Ti0.3 high-entropy alloy has been evaluated. The aging curves have been deduced for different aging temperatures (650, 750, and 850°C) as a function of time. The aging response was found to be markedly different with varying aging temperatures. A combined FESEM and transmission electron microscope studies have been performed to understand the evolution of precipitates and their characteristics with aging temperature and time. The variation of precipitate morphology, number density and size of precipitates with aging temperature were correlated with the age-hardening response. Additionally, the role of lattice misfit strain on precipitate morphology has been evaluated.

KW - Age hardening

KW - Aging temperature

KW - High-entropy alloys

KW - Microscopy

KW - Precipitate morphologies

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U2 - 10.1080/02670836.2021.1996104

DO - 10.1080/02670836.2021.1996104

M3 - Article

AN - SCOPUS:85118432198

SN - 0267-0836

VL - 37

SP - 1270

EP - 1279

JO - Materials Science and Technology

JF - Materials Science and Technology

IS - 15

ER -

Aging temperature role on precipitation hardening in a non-equiatomic AlCoCrFeNiTi high-entropy alloy

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Keywords

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