Improving mechanical properties of Al–Si–Cu–Mg alloys by microallying Sc using thermodynamic calculations

Mingshan Zhang; Junsheng Wang; Bing Wang; Chengpeng Xue; Xiaoguang Liu

doi:10.1016/j.calphad.2022.102394

Improving mechanical properties of Al–Si–Cu–Mg alloys by microallying Sc using thermodynamic calculations

Mingshan Zhang, Junsheng Wang^*, Bing Wang, Chengpeng Xue, Xiaoguang Liu

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

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

9 Citations (Scopus)

Abstract

The mechanical properties of Al–Si–Mg alloys are largely related to eutectic Si, intermetallics and pores. In this study, the effects of the Sc addition on the eutectic Si, Sc containing precipitates and pores were investigated, and the mechanical properties of the alloy were improved by adding Sc. The Sc addition leads to the formation of Al₃M (M = Sc, Zr, Ti,V) and reduction of pore size, increasing the yield strength (YTS), ultimate tensile strength (UTS) and elongation (EL) of the alloy after the T6 heat treatment. The formation of thermally stable Al₃M (M = Sc, Zr, Ti,V) after the T6 heat treatment improves the elevated temperature strength.

Original language	English
Article number	102394
Journal	Calphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume	76
DOIs	https://doi.org/10.1016/j.calphad.2022.102394
Publication status	Published - Mar 2022

Keywords

Al-Si-Cu-Mg alloys
AlM (M = Sc, Zr, Ti,V)
Porosity
Thermodynamics

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10.1016/j.calphad.2022.102394

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title = "Improving mechanical properties of Al–Si–Cu–Mg alloys by microallying Sc using thermodynamic calculations",

abstract = "The mechanical properties of Al–Si–Mg alloys are largely related to eutectic Si, intermetallics and pores. In this study, the effects of the Sc addition on the eutectic Si, Sc containing precipitates and pores were investigated, and the mechanical properties of the alloy were improved by adding Sc. The Sc addition leads to the formation of Al3M (M = Sc, Zr, Ti,V) and reduction of pore size, increasing the yield strength (YTS), ultimate tensile strength (UTS) and elongation (EL) of the alloy after the T6 heat treatment. The formation of thermally stable Al3M (M = Sc, Zr, Ti,V) after the T6 heat treatment improves the elevated temperature strength.",

keywords = "Al-Si-Cu-Mg alloys, AlM (M = Sc, Zr, Ti,V), Porosity, Thermodynamics",

author = "Mingshan Zhang and Junsheng Wang and Bing Wang and Chengpeng Xue and Xiaoguang Liu",

note = "Publisher Copyright: {\textcopyright} 2022",

year = "2022",

month = mar,

doi = "10.1016/j.calphad.2022.102394",

language = "English",

volume = "76",

journal = "Calphad: Computer Coupling of Phase Diagrams and Thermochemistry",

issn = "0364-5916",

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TY - JOUR

T1 - Improving mechanical properties of Al–Si–Cu–Mg alloys by microallying Sc using thermodynamic calculations

AU - Zhang, Mingshan

AU - Wang, Junsheng

AU - Wang, Bing

AU - Xue, Chengpeng

AU - Liu, Xiaoguang

PY - 2022/3

Y1 - 2022/3

N2 - The mechanical properties of Al–Si–Mg alloys are largely related to eutectic Si, intermetallics and pores. In this study, the effects of the Sc addition on the eutectic Si, Sc containing precipitates and pores were investigated, and the mechanical properties of the alloy were improved by adding Sc. The Sc addition leads to the formation of Al3M (M = Sc, Zr, Ti,V) and reduction of pore size, increasing the yield strength (YTS), ultimate tensile strength (UTS) and elongation (EL) of the alloy after the T6 heat treatment. The formation of thermally stable Al3M (M = Sc, Zr, Ti,V) after the T6 heat treatment improves the elevated temperature strength.

AB - The mechanical properties of Al–Si–Mg alloys are largely related to eutectic Si, intermetallics and pores. In this study, the effects of the Sc addition on the eutectic Si, Sc containing precipitates and pores were investigated, and the mechanical properties of the alloy were improved by adding Sc. The Sc addition leads to the formation of Al3M (M = Sc, Zr, Ti,V) and reduction of pore size, increasing the yield strength (YTS), ultimate tensile strength (UTS) and elongation (EL) of the alloy after the T6 heat treatment. The formation of thermally stable Al3M (M = Sc, Zr, Ti,V) after the T6 heat treatment improves the elevated temperature strength.

KW - Al-Si-Cu-Mg alloys

KW - AlM (M = Sc, Zr, Ti,V)

KW - Porosity

KW - Thermodynamics

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U2 - 10.1016/j.calphad.2022.102394

DO - 10.1016/j.calphad.2022.102394

M3 - Article

AN - SCOPUS:85122961422

SN - 0364-5916

VL - 76

JO - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

JF - Calphad: Computer Coupling of Phase Diagrams and Thermochemistry

M1 - 102394

ER -

Improving mechanical properties of Al–Si–Cu–Mg alloys by microallying Sc using thermodynamic calculations

Abstract

Keywords

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