Effect of surface characteristics on electrical resistivity of shot peened SiCP/AA6061 composite by 4PCPs method

Venumurali, J.; Reddy, G. Bhanodaya; Kumar, B. Prasad; Ramakotaiah, M.

doi:10.1016/j.matpr.2019.07.632

Cited by 4 publications

(2 citation statements)

References 13 publications

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“…The mechanical properties of composites depend on the weight percentage of reinforcement materials, sintering temperature, and microstructure [32]. Different weight percentages of nanofiller are added into the aluminium matrix to find an optimal amount of Fe 3 O 4 powder and its properties, such as hardness, for composite modification.…”

Section: Hardness Assessmentmentioning

confidence: 99%

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Ashrafi

Hanim²,

Jung³

et al. 2022

Materials

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An investigation into the addition of different weight percentages of Fe3O4 nanoparticles to find the optimum wt.% and its effect on the microstructure, thermal, magnetic, and electrical properties of aluminum matrix composite was conducted using the powder metallurgy method. The purpose of this research was to develop magnetic properties in aluminum. Based on the obtained results, the value of density, hardness, and saturation magnetization (Ms) from 2.33 g/cm3, 43 HV and 2.49 emu/g for Al-10 Fe3O4 reached a maximum value of 3.29 g/cm3, 47 HV and 13.06 emu/g for the Al-35 Fe3O4 which showed an improvement of 41.2%, 9.3%, and 424.5%, respectively. The maximum and minimum coercivity (Hc) was 231.87 G for Al-10 Fe3O4 and 142.34 G for Al-35 Fe3O4. Moreover, the thermal conductivity and electrical resistivity at a high weight percentage (35wt%) were 159 w/mK, 9.9 × 10−4 Ω.m, and the highest compressive strength was 133 Mpa.

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Section: Hardness Assessmentmentioning

confidence: 99%

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Ashrafi

Hanim²,

Jung³

et al. 2022

Materials

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“…The diameter of shots used in this work ranging from 0.45 to 0.6 mm and having hardness 45 -52 HRC [24]. The other SP parameters selected in this work such as air pressure, nozzle distance, and impact angle are similar to the earlier work [25]. The phases formed on the surface of specimens were characterized using a Bruker D8 Advance X-ray Diffractometer with Cu-Kα radiation and wave length of 1.54 Å.…”

Section: Shot Peening (Sp) and Surface Characterizationmentioning

confidence: 99%

Influence of Nanocrystalline Structure on Wear and Corrosion Behavior of Al-SiC<sub>P</sub> Composite

Venumurali¹,

Reddy²

2020

JMMCE

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Functionally graded (FG) Al-SiC P composites fabricated via centrifugal casting are widely used in automobile components particularly a brake rotor disc because of its high SiC fraction at the outer periphery. However, when operated in corrosive environment like road deicing salts the disc is highly sensitive to the corrosion due to high SiC fraction. But, the nanocrystalline (NC) structured surfaces synthesized by severe plastic deformation (SPD) method have excellent wear and corrosion resistance at the surface. Therefore, shot peening (SP) as a SPD method conducted on one side of the stir casted FG Al composite having 10 wt% SiC P constant reinforcement in order to create NC structured surface. The SP treatment continued for 70 s and 140 s durations. Thereafter, the surface characteristics of the composite before and after SP were estimated by XRD and then the composites were tested by wear and corrosion tests. The results revealed that the SP for 140 s duration favors the induction of hardened layer, higher grain refinement (NC structure) and dislocation density which promotes the occurrence of high surface hardness, thus significantly improving its wear properties. However, higher dislocation density resulted from longer duration shown deterioration to the corrosion resistance. Whereas, the attained degree of NC structure is more pronounced over dislocation density resulted after 70 s SP duration, thereby composite showed excellent corrosion resistance. Thus, the composite with 70 s duration possessed excellent corrosion and relatively good wear properties too.

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The Effect of Recrystallization on Electrical Resistivity of Stir Casted SiCP/AA6061 Composite After Shot Peening

Venumurali

Gaddam

2020

Intelligent Manufacturing and Energy Sustainability

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Effect of surface characteristics on electrical resistivity of shot peened SiCP/AA6061 composite by 4PCPs method

Cited by 4 publications

References 13 publications

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Influence of Nanocrystalline Structure on Wear and Corrosion Behavior of Al-SiC<sub>P</sub> Composite

The Effect of Recrystallization on Electrical Resistivity of Stir Casted SiCP/AA6061 Composite After Shot Peening

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Effect of surface characteristics on electrical resistivity of shot peened SiCP/AA6061 composite by 4PCPs method

Cited by 4 publications

References 13 publications

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Magnetic, Electrical, and Physical Properties Evolution in Fe3O4 Nanofiller Reinforced Aluminium Matrix Composite Produced by Powder Metallurgy Method

Influence of Nanocrystalline Structure on Wear and Corrosion Behavior of Al-SiC&lt;sub&gt;P&lt;/sub&gt; Composite

The Effect of Recrystallization on Electrical Resistivity of Stir Casted SiCP/AA6061 Composite After Shot Peening

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Influence of Nanocrystalline Structure on Wear and Corrosion Behavior of Al-SiC<sub>P</sub> Composite