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Mishra, Raja K.; Smith, George W.; Baxter, William J.; Sachdev, Anil K.; Franetovic, Vjekoslav

doi:10.1023/a:1004888831537

Cited by 26 publications

(3 citation statements)

References 1 publication

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“…Hwang et al [10] identified h and Q precipitates in the 319-type Al-Si-Cu alloy. Mishra et al [11] found that the ternary S¢ (Al 2 CuMg type) phase strengthens 339-type aluminum castings.…”

Section: Introductionmentioning

confidence: 99%

Effect of Zn Concentration on the Microstructure and Mechanical Properties of Al-Mg-Si-Zn Alloys Processed by Gravity Die Casting

Zhu

et al. 2018

Metall Mater Trans A

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The microstructure and mechanical properties of Al-8.1Mg-2.6Si-(0.08 to 4.62)Zn alloys (in wt pct) have been investigated by the permanent mold casting process. X-ray diffraction analysis shows that the s-Mg 32 (Al, Zn) 49 phase forms when the Zn content is 1.01 wt pct. With higher Zn contents of 2.37 and 3.59 wt pct, the g-MgZn 2 and s-Mg 32 (Al, Zn) 49 phases precipitate in the microstructure, and the g-MgZn 2 phase forms when the Zn content is 4.62 wt pct. Metallurgical analysis shows that the g-MgZn 2 and s-Mg 32 (Al, Zn) 49 phases strengthen the Al-8.1Mg-2.6Si-(0.08 to 4.62)Zn alloys. After solutionizing at 510°C for 180 minutes and aging at 180°C for 90 minutes, the g¢-MgZn 2 phase precipitates in the a-Al matrix, which significantly enhances the mechanical properties. Addition of 3.59 wt pct Zn to the Al-8.1Mg-2.6Si alloy with heat treatment increases the yield strength from 96 to 280 MPa, increases the ultimate tensile strength from 267 to 310 MPa, and decreases the elongation from 9.97 to 1.74 pct.

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Section: Introductionmentioning

confidence: 99%

Effect of Zn Concentration on the Microstructure and Mechanical Properties of Al-Mg-Si-Zn Alloys Processed by Gravity Die Casting

Zhu

et al. 2018

Metall Mater Trans A

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“…The uniqueness of the Al-Si-Cu-Mg system is that it hosts several diverse groups of alloys such as foundry alloys of the 4XXX series and wrought alloys of the 2XXX and 6XXX series. In Al-Cu-Mg-Si alloys system, equilibrium phases which may form include h (Al, Cu), b (Mg, Si), S (Al, Cu, Mg) and Q (Al, Cu, Mg, Si) [4][5][6][7][8][9], depending on the ratios of constituent elements, i.e. Cu, Mg and Si.…”

Section: Introductionmentioning

confidence: 99%

Characterization of precipitates in a hot-deformed hypereutectic Al–Si alloy

Zhao

et al. 2012

Journal of Alloys and Compounds

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“…[3][4][5] Si precipitation is clearly observed in 339 aluminum alloys (nominal composition of Si-12 wt pct) immediately after b¢ precipitation. [5] The compositions of GP zones and b¢¢ needles are still under considerable debate. Andersen et al [3] found that the composition of b¢¢ is Mg 5 Si 6 in a Al-0.2Fe-0.5Mg-0.53Si-0.01Mn (wt pct) alloy.…”

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confidence: 96%

Influence of TiB2 Addition on the Precipitation Kinetics in Al-7Si-0.3Mg In Situ TiB2 Composites

Nandam

Murty

Sankaran

2015

Metall Mater Trans A

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Precipitation behavior of the Al-7Si-0.3Mg/TiB 2 in situ composites was investigated using differential scanning calorimetry and transmission electron microscopy, and it was found that Si precipitation is accelerated with increase in TiB 2 content. Non-isothermal kinetic analysis clearly showed a decrease in the precipitation kinetics of the overaged metastable precipitates in the Mg 2 Si precipitation sequence.

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Cited by 26 publications

References 1 publication

Effect of Zn Concentration on the Microstructure and Mechanical Properties of Al-Mg-Si-Zn Alloys Processed by Gravity Die Casting

Effect of Zn Concentration on the Microstructure and Mechanical Properties of Al-Mg-Si-Zn Alloys Processed by Gravity Die Casting

Characterization of precipitates in a hot-deformed hypereutectic Al–Si alloy

Influence of TiB2 Addition on the Precipitation Kinetics in Al-7Si-0.3Mg In Situ TiB2 Composites

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