Study on the Effects of Squeeze Pressure on Mechanical Properties and Wear Characteristics of near-Eutectic Al–Si–Cu–Mg–Ni Piston Alloy with Variable Cu Content

Pratheesh, K.; Kanjirathinkal, Allesu; Joseph, M. A.; Ravi, M.

doi:10.1007/s40962-017-0132-0

Cited by 13 publications

(6 citation statements)

References 32 publications

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“…Compared to our alloys, Shivaprasad et al have reported better values of tensile stress of 237.0 MPa as well as a significantly higher elongation of 9.1% for Al-12Si alloy due to the refinement of grains and modification of the eutectic silicon [10]. The values of tensile strength and hardness of our alloys are higher than Al-12Si-xCu-1Mg-1.78Ni (x = 0, 1, 2, 3 and 4) alloys studied by Pratheesh et al [37] as well as Al-Si-Cu-Mg-Ni alloys with 10.5 %, 12 %, 18 % and 24 % of silicon examined by Zeren [44]. Nevertheless, Al-Si-Cu-Mg-Ni alloys with 10.5 %, 12 %, 18 % and 24 % of silicon have exhibited an elongation below 2.4 %, while the lowest value (about 0.5 %) was recorded for the alloy with the highest content of silicon (24 %) [44].…”

Section: Table 3 Mechanical Properties Of As-cast and T6-treated Specimensmentioning

confidence: 44%

“…After the T6-treatment, our alloys had higher values of tensile strength and similar hardness compared to Al-12Si-xCu-1Mg-1.78Ni alloys without copper or containing 1 % and 4 % of copper [37]. However, for Al-12Si-xCu-1Mg-1.78Ni alloy with 3 % of copper, the tensile strength above 250 MPa and hardness above 120 BHN [37] were found, which was better than the values exhibited by our alloys. The values of the hardness of the T6-treated samples of Al-Si-Cu-Mg-Ni alloys with 10.5 % and 12 % of silicon [44] and our Al-11Si and Al-12.5 Si alloys were similar.…”

Section: Table 3 Mechanical Properties Of As-cast and T6-treated Specimensmentioning

confidence: 78%

“…Many parts of automotive engines are subjected to the elevated temperatures during the service. Therefore, numerous examinations have been performed to design chemical composition which enables improvement of mechanical properties and ductility [1,16,24,[26][27][28][29][30][31][32], good deformation resistance [27,[33][34][35] as well as wear behaviour [36][37][38][39]. This research aimed to develop the Al-Si alloys reliable in the service.…”

Section: Introductionmentioning

confidence: 99%

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Effect of chemical composition and T6 heat treatment on the mechanical properties and fracture behaviour of Al-Si alloys for IC engine components

Vuksanović

Asanović

Šćepanović

et al. 2021

J min metall B Metall

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Microstructural examinations of Al-Si alloys intended to manufacture IC engine components revealed a complex phase composition in all samples. Polyhedral crystals of primary silicon were detected in Al-12.5Si alloy, besides the ?-Al phase, eutectic silicon, and several intermetallic phases, identified in the cast samples of both alloys. Better tensile properties were found for samples of Al-11Si. Predominantly intercrystalline fracture with features of ductile failure was observed in both alloys. In as-cast specimens of Al-11Si alloy, the cracks were formed by the decohesion mechanism between the particles of the intermetallic phase AlCuFeNi and ?-Al phase. The microcracks initiated on the interface were spread along the branches of ?-Al15(Fe,Mn,Cu)3Si2 particles. After T6 treatment of Al-11Si alloy, almost half the intermetallics quantity presented Al3Ni phase, while the iron-based phases were observed in a small amount. Spheroidized eutectic silicon, less portion of Al5Cu2Mg8Si6, and a more considerable quantity of Al3(Fe,Mn,Cu,Ni,Co) were detected for T6 specimens of Al-12.5Si alloy. The rounded crystals of eutectic silicon contributed to the improvement of their tensile properties. Larger and deeper dimples of mostly polygonal shapes were observed in the samples of Al-11Si alloy after T6 treatment. The microcracks have occurred at the boundary of the intermetallic phase/?-Al solid solution.

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Section: Table 3 Mechanical Properties Of As-cast and T6-treated Specimensmentioning

confidence: 44%

Section: Table 3 Mechanical Properties Of As-cast and T6-treated Specimensmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of chemical composition and T6 heat treatment on the mechanical properties and fracture behaviour of Al-Si alloys for IC engine components

Vuksanović

Asanović

Šćepanović

et al. 2021

J min metall B Metall

View full text Add to dashboard Cite

show abstract

“…The significant increase in wear rate is a thorny problem for automotive engine pistons at high temperatures. Therefore, it is very important to study the friction and wear behavior of materials at different temperatures [21][22][23][24][25] . Rutie Liu et al [26] discussed the friction and wear mechanism of brushes during current-carrying friction at different ambient temperatures ( 450 °C, 910 °C ).…”

Section: Introductionmentioning

confidence: 99%

Investigation tribological behavior of plasma sprayed Ni-based coating prepared on aluminum alloy under different temperatures

Han

Gao

Chen

et al. 2023

Preprint

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Ni-based alloy is a typical high-temperature alloy material possessing high hardness, good thermal stability, and wear resistance. It is widely used as the surface strengthening and repair materials for aviation, vehicle engines, and industrial parts. In this study, Ni60 alloy coating was prepared on the surface of ZL109 aluminum alloy by plasma spraying technology, and its tribological properties at different temperatures (T = 25 ℃, 100 ℃ and 350 ℃) were evaluated. X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM) with Energy Dispersive X-ray Spectroscopy (EDS) were used to characterize the phase analysis, micromorphology of Ni60 alloy coating fabricated with different spraying distance(D = 100 mm, 110 mm and 120 mm). The result shows that with the increase of spraying distance, the defects such as pores and microcracks decrease gradually. The porosity decreased from 2.2–0.76% and the fractal dimension decreased from 1.83 to 1.57. The element composition (Ni, Fe, Cr, Si, C, B) and phase composition (Ni3Fe, Cr23C6 and Cr7C3) of powder and coating were basically the same. The microhardness of the coating after spraying was about 5 times higher than that of the substrate. When D = 120 mm, the microhardness and bonding strength of the coating were the highest, which were 804 HV0.1 and 26 ± 0.05 MPa, respectively. The friction coefficient of the coating in the stable stage decreased with the increase of temperature, and all change in the range of 0.1 ~ 0.2. With the increase of temperature, the width, depth and volume wear rate of the coating increase gradually.

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“…Al-Si-Mg-Cu-Ni alloy has been widely used in the automotive industry due to its high strength, good wear resistance and low thermal expansion. This alloy is also used to produce hot forged engine parts [1][2][3]. Direct-chill casting is a typical method of producing Al-Si-Mg-Cu-Ni alloy billets for further processing [4].…”

Section: Introductionmentioning

confidence: 99%

Effects of Pulsed Magnetic Field Melt Treatment on Grain Refinement of Al-Si-Mg-Cu-Ni Alloy Direct-Chill Casting Billet

Bao

Xing

et al. 2022

Metals

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Al-Si-Mg-Cu-Ni alloy is widely used in the manufacture of high-performance car engine parts. Coarse, dendritic α-Al and large primary Si are common in Al-Si-Mg-Cu-Ni alloy DC casting billet, which is harmful to the performance of the final product. In this paper, a pulsed magnetic field melt treatment technique was applied to the melt in the launder of a DC casting platform to modify the α-Al and primary Si in the billet. A transient numerical model was established to analyze the electromagnetic field, flow field and temperature field in the melt during the pulsed magnetic field treatment. The effect of the magnetic energy on the clusters in the melt was analyzed. We found that during the pulsed magnetic field melt treatment, the number of clusters close to the critical size was increased due to the cluster formation work being reduced by the magnetic energy, which facilitated nucleation and refined the solidification structure. Furthermore, the flow velocity increased, and temperature homogenized in the melt during the pulsed magnetic field melt treatment, which benefitted the clusters close to the critical size distributed and maintained in the melt uniformly. The experimental results show that the α-Al and primary Si were small and homogeneous following the pulsed magnetic field melt treatment. The size of α-Al and primary Si was reduced by 25.6–44.4% and 32.2–54.1%, respectively, in the billet center compared to the conventional process.

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Study on the Effects of Squeeze Pressure on Mechanical Properties and Wear Characteristics of near-Eutectic Al–Si–Cu–Mg–Ni Piston Alloy with Variable Cu Content

Cited by 13 publications

References 32 publications

Effect of chemical composition and T6 heat treatment on the mechanical properties and fracture behaviour of Al-Si alloys for IC engine components

Effect of chemical composition and T6 heat treatment on the mechanical properties and fracture behaviour of Al-Si alloys for IC engine components

Investigation tribological behavior of plasma sprayed Ni-based coating prepared on aluminum alloy under different temperatures

Effects of Pulsed Magnetic Field Melt Treatment on Grain Refinement of Al-Si-Mg-Cu-Ni Alloy Direct-Chill Casting Billet

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