Influence of heat treatment on the microstructures and mechanical properties of squeeze cast AlSi9Cu3 alloys

被引：0

作者：

Barhoumi, Henda ^{[1
]}

Souissi, Slim ^{[2
]}

Amar, Mohamed Ben ^{[2
]}

Elhalouani, Foued ^{[2
]}

机构：

[1] Faculty of Sciences of Sfax (FSS), University of Sfax

[2] National Engineering School of Sfax (ENIS), University of Sfax

来源：

International Journal of Microstructure and Materials Properties | 2015年 / 10卷 / 5-6期

关键词：

AlSi[!sub]9[!/sub]Cu[!sub]3[!/sub] alloy; mechanical properties; microstructure; pressure; SDAS; secondary dendrite arm spacing; squeeze casting; T6 heat treatment;

D O I：

10.1504/IJMMP.2015.074999

中图分类号：

学科分类号：

摘要：

The AlSi9Cu3 alloy was prepared by gravity die casting and squeeze casting. This alloy has a good castability, excellent machinability, medium strength and low specific weight. Various test techniques, including optical microscopy, scanning electron microscope, X-ray diffraction, tensile test and hardness were used to examine the effect of pressure levels and T6 heat treatment on the microstructure and mechanical properties of Al9Si3Cu alloy produced by gravity and squeeze casting process. The experimental results showed that this alloy contained α-matrix, eutectic silicon and other Fe-and Cu-rich phases with different morphology. Furthermore, the applied pressure refines the microstructure, improves the tensile properties and increases the hardness Vickers. It was found that a T6 heat treatment was applied, spheroidised eutectic Si particles and fragmented Β-phase particles were formed and the mechanical properties were improved. © Copyright 2015 Inderscience Enterprises Ltd.

引用

页码：472 / 487

页数：15

共 32 条

[1]

Ben Amar M., Souissi S., Souissi N., Bradai C., Pressure and die temperature effects on microstructure and mechanical properties of squeeze casting 2017A wrought Al alloy, Int. J. Microstructure and Materials Properties, 7, 6, pp. 491-501, (2012)

[2]

Bin S., Xing S., Tian L., Zhao N., Li L., Influence of technical parameters on strength and ductility of AlSi9Cu3 alloys in squeeze casting, Transactions Nonferrous Metals Society of China, 23, pp. 977-982, (2013)

[3]

Boschetto A., Costanza G., Quadrini F., Tata M.E., Cooling rate inference in aluminum alloy squeeze casting, Materials Letter, 61, pp. 2969-2972, (2007)

[4]

Brito C.C.D., Magalhaes F.D., De Morais Costa A.L., Microstructural analysis and tensile properties of squeeze cast Al-7%Mg alloy, Materials Science Forum, 643, pp. 119-123, (2010)

[5]

El-Khair A., Microstructure characterization and tensile properties of squeeze-cast AlSiMg alloys, Material Letters, 59, (2005)

[6]

Ghomashchi M.R., Vikhrov A., Squeeze casting: An overview, Journal of MaterialsProcessing Technology, 101, 1-3, pp. 1-9, (2000)

[7]

Ghomashchi M.R., Stafford K.N., Factors influencing the production of high integrity aluminum/silicon alloy components by die and squeeze casting processes, Journal of Materials Processing Technology, 38, (1993)

[8]

Hajjari E., Divandari, An investigation on the microstructure and tensile properties of direct squeeze cast and gravity die cast 2024 wrought Al alloy, Materials and Design, 29, 9, pp. 1685-1689, (2008)

[9]

Hurtalova L., Tillova A., Chalupova M., Cu-rich Intermetallic phases in recycled AlSi9Cu3 72 cast Alloy-A comparison between aging behavior in T4 and T6 Treatments, Electronical Technical Journal of Technology, Engineering and Logistic in Transport, 6, 2, pp. 72-80, (2011)

[10]

Kauffman J.G., Rooy E.L., Aluminum alloy castings, ASM International, (2005)

← 1 2 3 4 →