Achieving nanoscale Al2Cu dispersoids in wrought Al-4.5wt.%Cu alloy by semi-solid isothermal treatment and post room-temperature ECAP

Hu, Yunfeng; Zhang, Yingbo; Zeng, Qinghua; Zhuang, Ye; Li, Mojia; Zhang, Pu

doi:10.1016/j.matlet.2021.130787

Cited by 5 publications

(1 citation statement)

References 16 publications

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“…The intergranular phases of as-cast 0Y alloy is almost Mg(Zn, Cu, Al) 2 lamellar phases, the increased Y element forms bulk-like (Al, Zn) 8 Cu 4 Y phases at interdendrites. Adding Y element to Al-7.9Zn-3Mg-2.4Cu-0.13Zr alloy can refine the grain, but some coarse (Al, Zn) 8 Cu 4 Y phases are also introduced, which will affect the mechanical properties of the alloy [13]. The second phase particles are smaller, or even reaches the nanometer level, and more disperse distribute in matrix, have better effect of hindering dislocation movement, this is beneficial to improving the final properties of the alloy [14].…”

Section: Microstructurementioning

confidence: 99%

Effect of yttrium content on microstructure and tensile properties of as-cast and as-solutionized Al-Zn-Mg-Cu alloys

Hu²,

Zhang³

et al. 2023

Mater. Res. Express

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Four kinds of 7xxx series aluminum alloys with different Y contents were obtained by ordinary gravity casting. The effect of Y content on the microstructure and mechanical properties of as-cast and as-solutionized Al-7.9Zn-3Mg-2.4Cu-0.13Zr (wt.%) alloys were investigated by means of X-ray diffraction (XRD), electron backscattering diffraction (EBSD), scanning electron microscopy (SEM), energy dispersive spectrometer (EDS) and room-temperature tensile tests. The results shows that, in as-cast condition, Y element can refine the grain and reduce the content of Mg(Zn, Cu, Al)2 lamellar phases at the interdendritic. (Al, Zn)8Cu4Y block-shaped phases form in interdendritic regions. After solution treatment, the undissolved Mg(Zn, Cu, Al)2 phases evolved from lamellar to bulk-like which distribution in interdendritic, but no obvious change in (Al, Zn)8Cu4Y phase. The tensile testing results shows that the optimal Y content is 0.45 wt.%. At 0.45 wt.% Y, the ultimate tensile strength and elongation are 267 MPa and 2.4% in as-cast condition and 420 MPa and 3.6% in as-solutionized condition.

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Section: Microstructurementioning

confidence: 99%

Effect of yttrium content on microstructure and tensile properties of as-cast and as-solutionized Al-Zn-Mg-Cu alloys

Hu²,

Zhang³

et al. 2023

Mater. Res. Express

Self Cite

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show abstract

等径角挤压结合形变热处理实现时效强化铜合金获得超高强度及导电率提升

Wang,

Li,

Meng

et al. 2024

J. Cent. South Univ.

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Achieving strength-ductility synergy in Al-4.5 wt%Cu binary alloy through semisolid isothermal treatment coupled with ECAP

Zhang,

Hu,

et al. 2024

Journal of Alloys and Compounds

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Achieving nanoscale Al2Cu dispersoids in wrought Al-4.5wt.%Cu alloy by semi-solid isothermal treatment and post room-temperature ECAP

Cited by 5 publications

References 16 publications

Effect of yttrium content on microstructure and tensile properties of as-cast and as-solutionized Al-Zn-Mg-Cu alloys

Effect of yttrium content on microstructure and tensile properties of as-cast and as-solutionized Al-Zn-Mg-Cu alloys

等径角挤压结合形变热处理实现时效强化铜合金获得超高强度及导电率提升

Achieving strength-ductility synergy in Al-4.5 wt%Cu binary alloy through semisolid isothermal treatment coupled with ECAP

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Achieving nanoscale Al2Cu dispersoids in wrought Al-4.5wt.%Cu alloy by semi-solid isothermal treatment and post room-temperature ECAP

Cited by 5 publications

References 16 publications

Effect of yttrium content on microstructure and tensile properties of as-cast and as-solutionized Al-Zn-Mg-Cu alloys

Effect of yttrium content on microstructure and tensile properties of as-cast and as-solutionized Al-Zn-Mg-Cu alloys

等径角挤压结合形变热处理实现时效强化铜合金获得超高强度及导电率提升

Achieving strength-ductility synergy in Al-4.5 wt%Cu binary alloy through semisolid isothermal treatment coupled with ECAP

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Achieving strength-ductility synergy in Al-4.5 wt%Cu binary alloy through semisolid isothermal treatment coupled with ECAP