Microstructure evolution and precipitation of Al–12Mg alloy solidified under high pressure

Jie, Jinchuan; Zou, Chaoying; Wang, H.W.; Wei, Zunjie

doi:10.1016/j.jallcom.2010.06.189

Cited by 20 publications

(6 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[8][9][10]. Among them, pressure is one of the basic thermodynamic parameters that affect the solidification process, which greatly affects the solidification process of the alloy [11][12][13]. The diffusion coefficient of solute is significantly decreased under high-pressure solidification conditions and consequently refines the second phase and change its morphology [14,15], which leads to a significant enhancement of the mechanical properties of the alloy [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of aging treatment on properties of Al–Si alloy solidified at high-pressure

Huang

Jiang

et al. 2023

Materials Science and Technology

View full text Add to dashboard Cite

The thermal conductivity and microhardness of the high-pressure solidified Al–Si-Fe-Mg alloys can be significantly improved by a large number of solute atoms precipitated and hence released the lattice distortion after aging for 12 h. And the α-Al lattice constant does not change significantly during the aging treatment from 12 h to 24 h, indicating the alloy released less lattice distortion. The interface between the precipitated phase and the α-Al matrix gradually evolved into an incoherent relationship with the extension of aging time, which has a greater hindering effect on the thermal conductivity of the alloy, and the amount of precipitated phase will be the primary factor in decreasing the thermal conductivity of the alloy at this point.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of aging treatment on properties of Al–Si alloy solidified at high-pressure

Huang

Jiang

et al. 2023

Materials Science and Technology

View full text Add to dashboard Cite

show abstract

“…The melting point of the alloy, the solution redistribution and the undercooling have all been changed under conditions of high-pressure solidification (Ref [10][11][12] so that microstructures have been produced that are much different from those formed during solidification at atmospheric pressure. Furthermore, high-pressure solidification can lead to the formation of new phases or new structures and can influence phase nucleation or grain growth (Ref [13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Solidification of Mg-Zn-Y Alloys at 6 GPa Pressure: Nanostructure, Phases Formed, and Their Stability

Zhou

Liu

Zhang

et al. 2016

J. of Materi Eng and Perform

View full text Add to dashboard Cite

Mg-Zn-Y alloys solidified under high pressure were characterized using XRD, DTA, SEM, and TEM. After solidification at atmospheric pressure, Mg-6Zn-1Y consisted of a-Mg, Mg 7 Zn 3 , and Mg 3 YZn 6 , while Mg6Zn-3Y consisted of a-Mg, Mg 3 Y 2 Zn 3 , and Mg 3 YZn 6 . After solidification at 6 GPa pressure, both alloys consisted of a-Mg, MgZn, and Mg 12 YZn. The size and the shape of the second-phase particles formed for atmospheric solidification were significantly different to those formed for solidification at 6 GPa pressure. In Mg-6Zn-1Y, the second-phase size decreased from 300 to 50 nm, and the shape changed from needle like to blocky. In Mg-6Zn-3Y, the size decreased from 100 to 50 nm and the shape changed from short rod like to small and round. After aging at 200°C for 12 h, the new MgZn phase transformed into the intermediate MgZn 2 phase. Increasing the aging time to 24 h caused the intermediate MgZn 2 phase to transform into Mg 7 Zn 3 with a size of 50 nm, while the Mg 12 YZn phase remained unchanged.

show abstract

“…This question, which is beneficial to prepare alloys with high mechanical properties, may also exist in other solute-strengthened alloys. Recently, our group has successfully prepared supersaturated Al(Mg) solid solutions with high Mg solubility by solidification under high pressure [7,8], which provides condition for us to study this question. In the present study, we demonstrate that the yield stress of supersaturated Al(Mg) solid solutions increases first, and then decreases with increasing Mg solubility.…”

Section: Introductionmentioning

confidence: 99%

“…The peaks of the ␣-Al phase shift to the lower angles, indicating that the lattice parameter and Mg solubility of the solid solution increase with Mg concentration. In addition, the reflections of the ␣-Al phase are asymmetric, which is caused by the inhomogeneous distribution of Mg atoms in the Al(Mg) solid solution[7,8]. The range of Mg solubility in the Al(12.07Mg) and Al(19.63Mg) solid solutions can be estimated to be about 7-16 wt.%[8] and 13-27 wt.%[7], respectively.Fig.…”

mentioning

confidence: 99%

Mechanical properties of Al(Mg) solid solution prepared by solidification under high pressures

Jie

Zou

Wang

et al. 2012

Journal of Alloys and Compounds

Self Cite

View full text Add to dashboard Cite

Microstructure evolution and precipitation of Al–12Mg alloy solidified under high pressure

Cited by 20 publications

References 20 publications

Effect of aging treatment on properties of Al–Si alloy solidified at high-pressure

Effect of aging treatment on properties of Al–Si alloy solidified at high-pressure

Solidification of Mg-Zn-Y Alloys at 6 GPa Pressure: Nanostructure, Phases Formed, and Their Stability

Mechanical properties of Al(Mg) solid solution prepared by solidification under high pressures

Contact Info

Product

Resources

About