Solidification of Al-xCu alloy under high pressures

X. Liu; P. Ma; Y. D. Ji; Z. J. Wei; C. J. Suo; P. C. Ji; X. R. Shi; Z. S. Yu; K. G. Prashanth

doi:10.1016/j.jmrt.2020.01.049

Solidification of Al-xCu alloy under high pressures

X. Liu
, P. Ma^*
, Y. D. Ji^*
, Z. J. Wei
, C. J. Suo
, P. C. Ji
, X. R. Shi
, Z. S. Yu
, K. G. Prashanth

^*Corresponding author for this work

Shanghai University of Engineering Science
Shanghai University
Harbin Institute of Technology
Tallinn University of Technology
Austrian Academy of Sciences
Vellore Institute of Technology

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

43 Scopus citations

Abstract

In this study, Al-xCu alloy containing x = 15, 33, and 40 wt.% Cu was solidified under differentpressures (atmospheric pressure, 1 GPa, 2 GPa, and 3 GPa). The effects of the solidificationpressure and aging treatment on the microstructural evolution and mechanical property ofthese alloys were investigated. The eutectic Al2Cu phase varied between dendritic to spher-ical morphology in Al-15Cu alloy with the application of pressure. Both the secondary armspacing in Al-33Cu alloy and the size of primary Al2Cu in Al-40Cu alloy had decreased underthe influence of high pressure during solidification. As a result of solid solution strength-ening, the Vickers hardness increases significantly for the Al-xCu alloys with high-pressuresolidification. The microstructure variation was further explained based on undercoolingtheory.

Original language	English
Pages (from-to)	2983-2991
Number of pages	9
Journal	Journal of Materials Research and Technology
Volume	9
Issue number	3
DOIs	https://doi.org/10.1016/j.jmrt.2020.01.049
State	Published - 2020
Externally published	Yes

Keywords

Aging treatment
Al-Cu alloy
High-pressure solidifi
Microstructure
cation

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10.1016/j.jmrt.2020.01.049

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title = "Solidification of Al-xCu alloy under high pressures",

abstract = "In this study, Al-xCu alloy containing x = 15, 33, and 40 wt.\% Cu was solidified under differentpressures (atmospheric pressure, 1 GPa, 2 GPa, and 3 GPa). The effects of the solidificationpressure and aging treatment on the microstructural evolution and mechanical property ofthese alloys were investigated. The eutectic Al2Cu phase varied between dendritic to spher-ical morphology in Al-15Cu alloy with the application of pressure. Both the secondary armspacing in Al-33Cu alloy and the size of primary Al2Cu in Al-40Cu alloy had decreased underthe influence of high pressure during solidification. As a result of solid solution strength-ening, the Vickers hardness increases significantly for the Al-xCu alloys with high-pressuresolidification. The microstructure variation was further explained based on undercoolingtheory.",

keywords = "Aging treatment, Al-Cu alloy, High-pressure solidifi, Microstructure, cation",

author = "X. Liu and P. Ma and Ji, \{Y. D.\} and Wei, \{Z. J.\} and Suo, \{C. J.\} and Ji, \{P. C.\} and Shi, \{X. R.\} and Yu, \{Z. S.\} and Prashanth, \{K. G.\}",

note = "Publisher Copyright: {\textcopyright} 2020 The Authors.",

year = "2020",

doi = "10.1016/j.jmrt.2020.01.049",

language = "英语",

volume = "9",

pages = "2983--2991",

journal = "Journal of Materials Research and Technology",

issn = "2238-7854",

publisher = "Elsevier Editora Ltda",

number = "3",

}

TY - JOUR

T1 - Solidification of Al-xCu alloy under high pressures

AU - Liu, X.

AU - Ma, P.

AU - Ji, Y. D.

AU - Wei, Z. J.

AU - Suo, C. J.

AU - Ji, P. C.

AU - Shi, X. R.

AU - Yu, Z. S.

AU - Prashanth, K. G.

PY - 2020

Y1 - 2020

N2 - In this study, Al-xCu alloy containing x = 15, 33, and 40 wt.% Cu was solidified under differentpressures (atmospheric pressure, 1 GPa, 2 GPa, and 3 GPa). The effects of the solidificationpressure and aging treatment on the microstructural evolution and mechanical property ofthese alloys were investigated. The eutectic Al2Cu phase varied between dendritic to spher-ical morphology in Al-15Cu alloy with the application of pressure. Both the secondary armspacing in Al-33Cu alloy and the size of primary Al2Cu in Al-40Cu alloy had decreased underthe influence of high pressure during solidification. As a result of solid solution strength-ening, the Vickers hardness increases significantly for the Al-xCu alloys with high-pressuresolidification. The microstructure variation was further explained based on undercoolingtheory.

AB - In this study, Al-xCu alloy containing x = 15, 33, and 40 wt.% Cu was solidified under differentpressures (atmospheric pressure, 1 GPa, 2 GPa, and 3 GPa). The effects of the solidificationpressure and aging treatment on the microstructural evolution and mechanical property ofthese alloys were investigated. The eutectic Al2Cu phase varied between dendritic to spher-ical morphology in Al-15Cu alloy with the application of pressure. Both the secondary armspacing in Al-33Cu alloy and the size of primary Al2Cu in Al-40Cu alloy had decreased underthe influence of high pressure during solidification. As a result of solid solution strength-ening, the Vickers hardness increases significantly for the Al-xCu alloys with high-pressuresolidification. The microstructure variation was further explained based on undercoolingtheory.

KW - Aging treatment

KW - Al-Cu alloy

KW - High-pressure solidifi

KW - Microstructure

KW - cation

UR - https://www.scopus.com/pages/publications/85081649078

U2 - 10.1016/j.jmrt.2020.01.049

DO - 10.1016/j.jmrt.2020.01.049

M3 - 文章

AN - SCOPUS:85081649078

SN - 2238-7854

VL - 9

SP - 2983

EP - 2991

JO - Journal of Materials Research and Technology

JF - Journal of Materials Research and Technology

IS - 3

ER -

Solidification of Al-xCu alloy under high pressures

Abstract

Keywords

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