Fabrication of Al/A206–Al2O3 nano/micro composite by combining ball milling and stir casting technology

Tahamtan, S.; Halvaee, A.; Emamy, M.; Zabihi, Majed

doi:10.1016/j.matdes.2013.01.032

Cited by 136 publications

(59 citation statements)

References 36 publications

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“…Hence incorporation of TiC in the aluminium matrix is directly proportional to hardness value [8]. These plots reveals that increase in the % of SiC and TiC leads to further increases in the hardness value which brings to a conclusion that increase in the percentage of SiC and TiC is directly proportional to hardness value [9].…”

Section: Ring Compression Testmentioning

confidence: 80%

“…Table 1 shows the design matrix with coded value and actual values of the process parameters selected in this work. Al 7075 rod of 25 mm in diameter was turned in lathe machine and scraps are collected with the ball milling; the scraps are made as the powder [9]. By using the Design Expert software, SiC and TiC were added according to the matrix along with Al 7075 and the mixture was blended well.…”

Section: Fabrication By Powder Metallurgymentioning

confidence: 99%

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On the Mechanical Properties of Hybrid Aluminium 7075 Matrix Composite Material Reinforced with SiC and TiC Produced by Powder Metallurgy Method

Devaneyan

Ganesh²,

Senthilvelan

2017

Indian Journal of Materials Science

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Metal matrix composites are widely used in components of various components of industrial equipment because of their superior material properties like high stiffness to weight ratio and high impact strength and fracture toughness while compared to the conventional material. Due to the concepts of high strength to low weight ratio, Al 7075 was extensively applied in aircraft engine and wings. Even if Al 7075 has higher hardness, higher strength, excellent wear resistance, and high-temperature corrosion protection, it is in need of further enhancement of properties for increasing its applicability. This paper presents the mechanical behavior of aluminium 7075 reinforced with Silicon Carbide (SiC) and Titanium Carbide (TiC) through powder metallurgy route. These specimens were produced by powder metallurgy method. The hybrid composite was made by Al 7075 alloy as the matrix with Silicon Carbide and Titanium Carbide as reinforcement. Silicon Carbide and Titanium Carbide are mixed in different weight ratio based on the design matrix formulated through a statistical tool, namely, Response Surface Methodology (RSM). Enhanced mechanical properties have been obtained with 90% of Al 7075, 4% of TiC, and 8% of SiC composition in the composite. Coefficient of friction appears to be more which has been determined by ring compression test.

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Section: Ring Compression Testmentioning

confidence: 80%

Section: Fabrication By Powder Metallurgymentioning

confidence: 99%

On the Mechanical Properties of Hybrid Aluminium 7075 Matrix Composite Material Reinforced with SiC and TiC Produced by Powder Metallurgy Method

Devaneyan

Ganesh²,

Senthilvelan

2017

Indian Journal of Materials Science

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“…Compared with traditional micron-sized SiC p /Al composites, the higher tensile strength and good ductility of the nano-sized SiC p /Al composites entitle them to have more competitive ability for advanced structural applications such as in automotive and aerospace industries and the military [10]. In the past decades, several processing techniques have been developed for fabricating Al matrix composites reinforced with nano-sized particles such as high-energy milling, powder metallurgy, and nano-sintering, and liquid-state solidification processing (e.g., stir casting) [11][12][13][14][15][16][17][18][19]. In these techniques, the semisolid stirring process has some important advantages such as low cost, capability of producing products with complex shapes, and processing simplicity [14].…”

Section: Introductionmentioning

confidence: 99%

“…Semisolid stirring can suppress the interfacial reaction due to the low stirring temperature [19]. The usage of precursor powders fabricated by the mix of the nano-sized SiC p and alloy powders using mechanical ball milling is of benefit to the dispersion of the nano-sized SiC p in the matrix due to the disruption of the agglomerate nano-sized SiC p clusters in advance.…”

Section: Introductionmentioning

confidence: 99%

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Qiu

Gao

Tang

et al. 2017

Metals

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Abstract:The nano-sized SiC p /Al-Cu composites were successfully fabricated by combining semisolid stirring with ball milling technology. Microstructures were examined by an olympus optical microscope (OM), field emission scanning electron microscope (FESEM) and transmission electron microscope (TEM). Tensile properties were studied at room temperature. The results show that the α-Al dendrites of the composites were strongly refined, especially in the composite with 3 wt. % nano-sized SiC p , of which the morphology of the α-Al changes from 200 µm dendritic crystal to 90 µm much finer equiaxial grain. The strength and ductility of the composites are improved synchronously with the addition of nano-sized SiC p particles. The as-cast 3 wt. % nano-sized SiC p /Al-Cu composite displays the best tensile properties, i.e., the yield strength, ultimate tensile strength (UTS) and fracture strain increase from 175 MPa, 310 MPa and 4.1% of the as-cast Al-Cu alloy to 220 MPa, 410 MPa and 6.3%, respectively. The significant improvement in the tensile properties of the composites is mainly due to the refinement of the α-Al dendrites, nano-sized SiC p strengthening, and good interface combination between the SiC p and Al-Cu alloys.

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“…Ball milling is a very effective way to eliminate the aggregation among particles and has already been successfully used to facilitate the dispersion of nano particles in the metal melt. [29,30] In our study, copper powder was chosen to mix with titanium hydride powder due to the following reasons: (1) The wettability between copper and aluminum is good [31] ; (2) Copper powder is less easy to be contaminated by oxidation compared to aluminum powder; (3) the addition of copper will contribute to the formation of a Al 2 Cu solid solution according to Al-Cu phase diagram, which can act as a strengthening phase to improve the mechanical property of foams.…”

Section: B the Role Of Ball Milling Treatmentmentioning

confidence: 99%

Fabrication of Aluminum Foams with Small Pore Size by Melt Foaming Method

Cheng

Chen

et al. 2017

Metall Mater Trans B

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This article introduces an improvement to the fabrication of aluminum foams with small pore size by melt foaming method. Before added to the melt, the foaming agent (titanium hydride) was pretreated in two steps. It firstly went through the traditional pre-oxidation treatment, which delayed the decomposition of titanium hydride and made sure the dispersion stage was controllable. Then such pre-oxidized titanium hydride powder was mixed with copper powder in a planetary ball mill. This treatment can not only increase the number of foaming agent particles and make them easier to disperse in the melt, which helps to increase the number of pores, but also reduce the amount of hydrogen released in the foaming stage. Therefore, the pore size could be decreased. Using such a ball-milled foaming agent in melt foaming method, aluminum foams with small pore size (average size of 1.6 mm) were successfully fabricated.

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Fabrication of Al/A206–Al2O3 nano/micro composite by combining ball milling and stir casting technology

Cited by 136 publications

References 36 publications

On the Mechanical Properties of Hybrid Aluminium 7075 Matrix Composite Material Reinforced with SiC and TiC Produced by Powder Metallurgy Method

On the Mechanical Properties of Hybrid Aluminium 7075 Matrix Composite Material Reinforced with SiC and TiC Produced by Powder Metallurgy Method

Microstructures and Tensile Properties of Al–Cu Matrix Composites Reinforced with Nano-Sized SiCp Fabricated by Semisolid Stirring Process

Fabrication of Aluminum Foams with Small Pore Size by Melt Foaming Method

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