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
N1 - Publisher Copyright:
© 2022
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
UR - http://www.scopus.com/inward/record.url?scp=85122961422&partnerID=8YFLogxK
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 -