Fcc nanostructured TiFeCoNi alloy with multi-scale grains and enhanced plasticity

Zhiqiang Fu; Benjamin E. MacDonald; Dalong Zhang; Bingyong Wu; Weiping Chen; Julia Ivanisenko; Horst Hahn; Enrique J. Lavernia

doi:10.1016/j.scriptamat.2017.09.023

Fcc nanostructured TiFeCoNi alloy with multi-scale grains and enhanced plasticity

Zhiqiang Fu
, Benjamin E. MacDonald
, Dalong Zhang
, Bingyong Wu
, Weiping Chen
, Julia Ivanisenko
, Horst Hahn
, Enrique J. Lavernia

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

73 Scopus citations

Abstract

Face-centered cubic (fcc) nanostructured high entropy alloys (HEAs) are characterized by high strength and low plasticity. The objective of the present study was to investigate the question of whether it is possible to increase plasticity while retaining strength in a medium-entropy TiFeCoNi alloy by promoting the formation of a multi-scale microstructure. To accomplish this objective we synthesized a bulk Ti₁₀Fe₃₀Co₃₀Ni₃₀ medium-entropy alloy (MEA) via mechanical alloying (MA) and spark plasma sintering (SPS). This synthesis approach yielded a multi-scale microstructure consisting of distinctly coarse grains (> 1 μm) and nanosized grains. The mechanisms responsible for the associated mechanical behavior are discussed.

Original language	English (US)
Pages (from-to)	108-112
Number of pages	5
Journal	Scripta Materialia
Volume	143
DOIs	https://doi.org/10.1016/j.scriptamat.2017.09.023
State	Published - Jan 15 2018
Externally published	Yes

Keywords

High-entropy alloys
Mechanical properties
Multi-scale grains

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2017.09.023

Cite this

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title = "Fcc nanostructured TiFeCoNi alloy with multi-scale grains and enhanced plasticity",

abstract = "Face-centered cubic (fcc) nanostructured high entropy alloys (HEAs) are characterized by high strength and low plasticity. The objective of the present study was to investigate the question of whether it is possible to increase plasticity while retaining strength in a medium-entropy TiFeCoNi alloy by promoting the formation of a multi-scale microstructure. To accomplish this objective we synthesized a bulk Ti10Fe30Co30Ni30 medium-entropy alloy (MEA) via mechanical alloying (MA) and spark plasma sintering (SPS). This synthesis approach yielded a multi-scale microstructure consisting of distinctly coarse grains (> 1 μm) and nanosized grains. The mechanisms responsible for the associated mechanical behavior are discussed.",

keywords = "High-entropy alloys, Mechanical properties, Multi-scale grains",

author = "Zhiqiang Fu and MacDonald, \{Benjamin E.\} and Dalong Zhang and Bingyong Wu and Weiping Chen and Julia Ivanisenko and Horst Hahn and Lavernia, \{Enrique J.\}",

note = "Publisher Copyright: {\textcopyright} 2017 Acta Materialia Inc.",

year = "2018",

month = jan,

day = "15",

doi = "10.1016/j.scriptamat.2017.09.023",

language = "English (US)",

volume = "143",

pages = "108--112",

journal = "Scripta Materialia",

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publisher = "Acta Materialia Inc",

}

TY - JOUR

T1 - Fcc nanostructured TiFeCoNi alloy with multi-scale grains and enhanced plasticity

AU - Fu, Zhiqiang

AU - MacDonald, Benjamin E.

AU - Zhang, Dalong

AU - Wu, Bingyong

AU - Chen, Weiping

AU - Ivanisenko, Julia

AU - Hahn, Horst

AU - Lavernia, Enrique J.

PY - 2018/1/15

Y1 - 2018/1/15

N2 - Face-centered cubic (fcc) nanostructured high entropy alloys (HEAs) are characterized by high strength and low plasticity. The objective of the present study was to investigate the question of whether it is possible to increase plasticity while retaining strength in a medium-entropy TiFeCoNi alloy by promoting the formation of a multi-scale microstructure. To accomplish this objective we synthesized a bulk Ti10Fe30Co30Ni30 medium-entropy alloy (MEA) via mechanical alloying (MA) and spark plasma sintering (SPS). This synthesis approach yielded a multi-scale microstructure consisting of distinctly coarse grains (> 1 μm) and nanosized grains. The mechanisms responsible for the associated mechanical behavior are discussed.

AB - Face-centered cubic (fcc) nanostructured high entropy alloys (HEAs) are characterized by high strength and low plasticity. The objective of the present study was to investigate the question of whether it is possible to increase plasticity while retaining strength in a medium-entropy TiFeCoNi alloy by promoting the formation of a multi-scale microstructure. To accomplish this objective we synthesized a bulk Ti10Fe30Co30Ni30 medium-entropy alloy (MEA) via mechanical alloying (MA) and spark plasma sintering (SPS). This synthesis approach yielded a multi-scale microstructure consisting of distinctly coarse grains (> 1 μm) and nanosized grains. The mechanisms responsible for the associated mechanical behavior are discussed.

KW - High-entropy alloys

KW - Mechanical properties

KW - Multi-scale grains

UR - https://www.scopus.com/pages/publications/85029817704

UR - https://www.scopus.com/pages/publications/85029817704#tab=citedBy

U2 - 10.1016/j.scriptamat.2017.09.023

DO - 10.1016/j.scriptamat.2017.09.023

M3 - Article

AN - SCOPUS:85029817704

SN - 1359-6462

VL - 143

SP - 108

EP - 112

JO - Scripta Materialia

JF - Scripta Materialia

ER -

Fcc nanostructured TiFeCoNi alloy with multi-scale grains and enhanced plasticity

Abstract

Keywords

ASJC Scopus subject areas

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