A cuboidal B2 nanoprecipitation-enhanced body-centered-cubic alloy Al0.7CoCrFe2Ni with prominent tensile properties

Qing Wang; Yue Ma; Beibei Jiang; Xiaona Li; Yao Shi; Chuang Dong; Peter K. Liaw

doi:10.1016/j.scriptamat.2016.04.014

A cuboidal B2 nanoprecipitation-enhanced body-centered-cubic alloy Al_0.7CoCrFe₂Ni with prominent tensile properties

Qing Wang, Yue Ma, Beibei Jiang, Xiaona Li, Yao Shi, Chuang Dong, Peter K. Liaw

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

156 Scopus citations

Abstract

The present work reports a cuboidal B2-coherently-enhanced body-centered-cubic (BCC) alloy Al_0.7CoCrFe₂Ni with prominent tensile properties at both room (ultimate tensile strength σ_b = 1223 MPa and elongation to fracture δ = 7.9%) and high temperatures. This multi-principal-element alloy is developed out of a cluster formula [Al-M₁₄]Al₁ issued from the cluster-plus-glue-atom model of a BCC structure. Here, the [Al-M₁₄] cluster is centered by Al, surrounded by fourteen average atoms M = Co_1/5Cr_1/5Fe_2/5Ni_1/5, and glued with one Al atom. Its excellent mechanical properties are attributed to a superalloy-like microstructure, characterized by cuboidal B2 nanoprecipitates coherently embedded in the BCC matrix.

Original language	English
Pages (from-to)	85-89
Number of pages	5
Journal	Scripta Materialia
Volume	120
DOIs	https://doi.org/10.1016/j.scriptamat.2016.04.014
State	Published - 15 Jul 2016
Externally published	Yes

Keywords

Alloy design
Cluster-plus-glue-atom model
Coherent precipitation
Mechanical properties
Multi-principal-element alloy

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10.1016/j.scriptamat.2016.04.014

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title = "A cuboidal B2 nanoprecipitation-enhanced body-centered-cubic alloy Al0.7CoCrFe2Ni with prominent tensile properties",

abstract = "The present work reports a cuboidal B2-coherently-enhanced body-centered-cubic (BCC) alloy Al0.7CoCrFe2Ni with prominent tensile properties at both room (ultimate tensile strength σb = 1223 MPa and elongation to fracture δ = 7.9%) and high temperatures. This multi-principal-element alloy is developed out of a cluster formula [Al-M14]Al1 issued from the cluster-plus-glue-atom model of a BCC structure. Here, the [Al-M14] cluster is centered by Al, surrounded by fourteen average atoms M = Co1/5Cr1/5Fe2/5Ni1/5, and glued with one Al atom. Its excellent mechanical properties are attributed to a superalloy-like microstructure, characterized by cuboidal B2 nanoprecipitates coherently embedded in the BCC matrix.",

keywords = "Alloy design, Cluster-plus-glue-atom model, Coherent precipitation, Mechanical properties, Multi-principal-element alloy",

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doi = "10.1016/j.scriptamat.2016.04.014",

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AU - Wang, Qing

AU - Ma, Yue

AU - Jiang, Beibei

AU - Li, Xiaona

AU - Shi, Yao

AU - Dong, Chuang

AU - Liaw, Peter K.

PY - 2016/7/15

Y1 - 2016/7/15

N2 - The present work reports a cuboidal B2-coherently-enhanced body-centered-cubic (BCC) alloy Al0.7CoCrFe2Ni with prominent tensile properties at both room (ultimate tensile strength σb = 1223 MPa and elongation to fracture δ = 7.9%) and high temperatures. This multi-principal-element alloy is developed out of a cluster formula [Al-M14]Al1 issued from the cluster-plus-glue-atom model of a BCC structure. Here, the [Al-M14] cluster is centered by Al, surrounded by fourteen average atoms M = Co1/5Cr1/5Fe2/5Ni1/5, and glued with one Al atom. Its excellent mechanical properties are attributed to a superalloy-like microstructure, characterized by cuboidal B2 nanoprecipitates coherently embedded in the BCC matrix.

AB - The present work reports a cuboidal B2-coherently-enhanced body-centered-cubic (BCC) alloy Al0.7CoCrFe2Ni with prominent tensile properties at both room (ultimate tensile strength σb = 1223 MPa and elongation to fracture δ = 7.9%) and high temperatures. This multi-principal-element alloy is developed out of a cluster formula [Al-M14]Al1 issued from the cluster-plus-glue-atom model of a BCC structure. Here, the [Al-M14] cluster is centered by Al, surrounded by fourteen average atoms M = Co1/5Cr1/5Fe2/5Ni1/5, and glued with one Al atom. Its excellent mechanical properties are attributed to a superalloy-like microstructure, characterized by cuboidal B2 nanoprecipitates coherently embedded in the BCC matrix.

KW - Alloy design

KW - Cluster-plus-glue-atom model

KW - Coherent precipitation

KW - Mechanical properties

KW - Multi-principal-element alloy

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DO - 10.1016/j.scriptamat.2016.04.014

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SN - 1359-6462

VL - 120

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JO - Scripta Materialia

JF - Scripta Materialia

ER -

A cuboidal B2 nanoprecipitation-enhanced body-centered-cubic alloy Al_0.7CoCrFe₂Ni with prominent tensile properties

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Keywords

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