Effects of Ni on the microstructure, mechanical and tribological properties of AA2024-Al3NiCu composite fabricated by stir casting process

Farajollahi, Ramezanali; Aval, Hamed Jamshidi; Jamaati, Roohollah

doi:10.1016/j.jallcom.2021.161433

Cited by 33 publications

(9 citation statements)

References 43 publications

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“…Among various grades of aluminium AA6063-T6 has strong mechanical attributes, heat treatable and corrosion resistant. They are widely used in aerospace, automobile sector, window frames, roofing, construction items, pipes, electrical instruments, marine, storage tanks door frames, Railing, truck frames [21,22]. Table 1 and table 2 shows the mechanical and chemical properties of AA6063-T6.…”

Section: Methodsmentioning

confidence: 99%

“…They mainly contribute in the aerospace and automobile industries, piston, connecting rods, aviation, drive shafts, space craft, passenger planes, electronic boards, cycles, vehicles and for variety of many other applications [4][5][6][7]. The MMC have more qualities than alloy because they have more creep resistance, high strength and corrosion resistance etc [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Fabrication And Characterisation of AA6063-T6/SiC/Waste Bone Powder Using Electromagnetic Stir Casting

Sharma

Gupta

Kumar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Electromagnetic stir casting (EMSC) is a highly effective process to produce the metal matrix composite (MMC) because of the uniform mixing of reinforcement with the matrix. The current research is to investigate AA6063-T6/2wt%SiC/5wt%WBP hybrid composite using Microstructure analysis, Field emission scanning electron microscopy (FESEM), X-ray diffraction analysis (XRD), Energy dispersive X-ray spectroscopy (EDS), Tensile strength and Hardness. Stirring time and speed is kept as constant parameter. Microstructure analysis reveals that there is uniform distribution of reinforcement in AA6063-T6 hybrid composite and no voids were observed. FESEM analysis shows that reinforcement have a good bonding with a small porosity. XRD analysis indicates that there are no unwanted contaminants found and Al3Ca shows the highest peak followed by Al2(CO3)3 and CaSiO3. It was concluded that mechanical properties are improved on adding the reinforcement, tensile strength by 22.4% and hardness by 31%.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fabrication And Characterisation of AA6063-T6/SiC/Waste Bone Powder Using Electromagnetic Stir Casting

Sharma

Gupta

Kumar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…Stir casting is used for the preparation of such composites due to its flexibility and cost effectiveness. Metal matrix composites and hybrid composites are widely produced by the stir casting process and significant improvement in the characteristics was noticed [1], [2]. Ramezenali et al [1] studied the effect on the microstructural and mechanical characteristics of the addition of Nickel in Aluminium 2024 melt which formed nickel aluminides as intermetallics.…”

Section: Introductionmentioning

confidence: 99%

“…Metal matrix composites and hybrid composites are widely produced by the stir casting process and significant improvement in the characteristics was noticed [1], [2]. Ramezenali et al [1] studied the effect on the microstructural and mechanical characteristics of the addition of Nickel in Aluminium 2024 melt which formed nickel aluminides as intermetallics. Idrisi et al [3] found the presence of SiC micro particles which were added in aluminum alloy during an ultrasonic-assisted stir casting technique reveals the reasons for better physical and mechanical characteristics which were a result of proper stirring and mixing, thereby reducing the possibility of voids.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the effect of strontium and tungsten carbide on the microstructure evolution, tribological and mechanical behaviour of Al-Zn-Mg-Cu-5Sr-WC metal matrix composite

JOHNSON,

RAJA

2024

J Met Mater Miner

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The present study focused on the experimental investigation of the metallurgical, tribological, and mechanical behavior of the developed Al-Zn-Mg-Cu-Sr-WC (Al7075-Sr-WC) metal matrix composite. The effect of the reinforcements such as strontium and tungsten carbide (WC) along with a 2 wt% magnesium as the wetting agent during the stir casting of the synthesized aluminum metal matrix composite (MMC) was investigated by varying the weight percentages. The microstructure examination was characterized using field emission scanning electron microscopy (FE-SEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy dispersive spectroscopy (EDS) techniques. Wear analysis and mechanical testing were conducted to study the effect of WC particles in the matrix phase by examining their wear rate, tensile strength, proof strength, and hardness values. From the mechanical and tribological tests, it was observed that there was an increase of 55% in hardness and 43% in tensile strength, along with a 31% reduction in wear rate. The secondary phases revealed from XRD analysis lead to more hardness along the refined grain boundaries. The tensile strength of the composite initially increased with a 3 wt% of WC and 5 wt% strontium due to hindrance to the dislocation movement but decreased with more reinforcement particles caused by brittleness. The hard WC particles presence has reduced the wear rate significantly due to its resistance towards abrasive wear and lubricating effect. The unique combination of a grain refiner and a binder helped develop a novel composite with superior characteristics that could replace many aerospace components made up of Al7075 alloy.

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“…The 2xxx series of aluminum wrought alloys and related alloys, having copper as the principal alloying element followed by magnesium, are especially important in the aeronautic industry and are nowadays subjected to extensive research [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. These are heat-treatable alloys that can be hardened under certain conditions of heating and cooling and are primarily used for aircraft structures, fuselages, and the lower part of wings under tension [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Solid Solutions on the Al2024 High-Temperature Deformation Behavior

Ruano,

Orozco-Caballero,

Álvarez-Leal

et al. 2023

Materials

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The mechanical properties of 2024 aluminum alloy were studied after two different tempers. The T351 temper (solution heat treatment, stress relief, and natural aging) leads to high hardness and toughness. A thermal treatment consisting of heat-treating at 280 °C for 48 h and slow cooling in a furnace, named TT temper, was performed to increase the precipitate size and their separation while minimizing the amount of solutes in solid solution, which produced the minimum hardness for an overaged Al2024 alloy and a lower tensile flow stress than for the T351 temper. The flow stress strongly decreases and the elongation to failure strongly increases for both materials above 300 °C. Differences in strain rate at a given stress in the power law regime at all temperatures for both tempers and compared with pure aluminum are attributed to the influence of solutes in solid solutions, affecting both the glide and climb of dislocations. However, the stacking fault energy, SFE, alone does not account for the hot deformation behavior. Thus, it is the synergistic effect of various solutes that affects the entire deformation process, causing a decrease of three or four orders of magnitude in strain rate for a given stress with respect to the pure aluminum matrix values.

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Effects of Ni on the microstructure, mechanical and tribological properties of AA2024-Al3NiCu composite fabricated by stir casting process

Cited by 33 publications

References 43 publications

Fabrication And Characterisation of AA6063-T6/SiC/Waste Bone Powder Using Electromagnetic Stir Casting

Fabrication And Characterisation of AA6063-T6/SiC/Waste Bone Powder Using Electromagnetic Stir Casting

Evaluation of the effect of strontium and tungsten carbide on the microstructure evolution, tribological and mechanical behaviour of Al-Zn-Mg-Cu-5Sr-WC metal matrix composite

Influence of Solid Solutions on the Al2024 High-Temperature Deformation Behavior

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