Effect of Volume Fraction of Reinforcement and Milling Time on Physical and Mechanical Properties of Al7075–SiC Composites Fabricated by Powder Metallurgy Method

Sattari, Sajjad; Jahani, Mahsa; Atrian, Amir

doi:10.1007/s11106-017-9896-2

Cited by 28 publications

(6 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This indicates that no new phases were formed throughout the milling process. Similar findings were reported in the literature [13,31,40].…”

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powderssupporting

confidence: 93%

“…Due to its good thermodynamic and chemical stability as well as its good wettability, SiC is a widely used reinforcement particle in AMC [12]. Appropriate homogeneous distribution and interfacial bonding between aluminum and SiC reinforcement during the synthesis process lead to an increase in the overall strength of the composites [13,14].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Gasha,

Trautmann,

Wagner

2024

Materials

View full text Add to dashboard Cite

The influence of milling time and volume fraction of reinforcement on the morphology, microstructure, and mechanical behaviors of SiCp-reinforced AA2017 composite powder produced by high-energy ball milling (HEBM) was investigated. AA2017 + SiCp composite powder with different amounts of SiC particles (5, 10, and 15 vol%) was successfully prepared from gas-atomized AA2017 aluminum alloy powder with a particle size of <100 μm and silicon carbide (SiC) powder particles with an average particle size of <1 μm. An optical microscope (OM), X-ray diffraction (XRD), and scanning electron microscope (SEM) were utilized to characterize the microstructure of the milled composite powder at different milling periods. The results indicated that the SiC particles were homogeneously distributed in the AA2017 matrix after 5 h of HEBM time. The morphology of the particles transformed from a laminar to a nearly spherical shape, and the size of the milled powder particles reduced with increasing the content of SiC particles. The XRD analysis was carried out to characterize the phase constituents, crystallite size, and lattice strain of the composite powders at different milling periods. It was found that with increasing milling time and SiC volume fraction, the crystallite size of the aluminum alloy matrix decreased while the lattice strain increased. The average crystallite sizes were reduced from >300 nm to 68 nm, 64 nm, and 64 nm after 5 h of milling, corresponding to SiC contents of 5, 10, and 15 vol%, respectively. As a result, the lattice strain increased from 0.15% to 0.5%, which is due to significant plastic deformation during the ball milling process. XRD results showed a rapid decrease in crystallite size during the early milling phase, and the minimum grain size was achieved at a higher volume fraction of SiC particles. Microhardness tests revealed that the milling time has a greater influence on the hardness than the amount of SiC reinforcements. Therefore, the composite powder milled for 5 h showed an average microhardness three times higher than that of other unmilled powder particles.

show abstract

“…This indicates that no new phases were formed throughout the milling process. Similar findings were reported in the literature [13,31,40].…”

Section: Phase Analysis Of the Aa2017 + Sic P Composite Powderssupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Gasha,

Trautmann,

Wagner

2024

Materials

View full text Add to dashboard Cite

show abstract

“…And the distribution of the TiC particles is more homogenized with increasing the MT, and the size of the reinforced particles is decreased due to the TiC particles and Al matrix being subjected to high-energy ball milling. Sattari et al 34 investigated the effect of SiC concentration (4, 6, and 8 vol.%) and the MT (4 and 8 h) on the properties of the Al7075–SiC composites. They reported that the compressive strength and hardness properties improved with increasing the MT and the SiC content.…”

Section: Resultsmentioning

confidence: 99%

mentioning

confidence: 99%

Experimental investigation and numerical modeling of mechanically alloyed Al-TiC composites

Habba

Barakat

2023

Journal of Composite Materials

View full text Add to dashboard Cite

The present work studies the mechanical alloying, consolidation, evaluation, modeling, and optimization of the Al-TiC composites mixed at different milling times (MTs) of 6, 12, 24, and 48 h and reinforced with three TiC concentrations (3, 6, and 12 vol.%). The Al-TiC composites formed via the powder metallurgy method. The XRD of the mixed powder and the consolidated composites were investigated. Furthermore, density, wear, compressive strength, and hardness have been examined for the consolidated composites. Also, the worn surface of the wear-tested composites was studied utilizing SEM analysis. The response surface methodology (RSM) was involved to clarify the effects of mechanical alloying parameters of MTs and the TiC concentrations and their interaction towards achieving their optimum process factors to produce Al-TiC composites. The RSM results prove the applied factors’ importance in improving the consolidated composites’ properties. The optimization results show the optimum parameters to produce Al-TiC composites are 28.4 MTs and 12 vol.% TiC to produce Al-TiC composites with 304.4 ± 3 MPa compressive strength, 191.21 ± 2 HV hardness, 2.88 ± 0.008 g/cm3 density, and 9.7 ± 0.01 mg weight loss. The ANOVA analysis reveals that the suggested models can virtually expect the tested responses of density, hardness, compressive strength, and weight loss with a confidence level of over 90, 98, 95, and 95%, respectively.

show abstract

“…Such high metal loading has been found to result in more metallic powder particles to be sintered per unit area, i.e. high compaction, thereby leading to generation of more grain boundaries that become effective sites to impede dislocation density [32,33]. However, the HV value of sintered parts for Tn=205°C (relative density: 66.4%) significantly decreases to 160 HV, which suggests that the negative consequence of voids and defects overcome the benefits of using high metal loading for FFF AM 316L SS in this study [28].…”

Section: Hardness Measurementsmentioning

confidence: 99%

High Densification Level and Hardness Values of Additively Manufactured 316L Stainless Steel Fabricated by Fused Filament Fabrication

Nur Hidayah Musa,

Nurainaa Mazlan,

Shahir Mohd Yusuf

et al. 2023

ARASET

View full text Add to dashboard Cite

Laser powder bed fusion (L-PBF) has emerged as the most widely used additive manufacturing (AM) process, also known as 3D printing, to fabricate 316L stainless steel (316L SS) components for various applications. However, the initial setup, operation, and maintenance costs are too expensive due to the complex machinery, high energy-consuming laser beam, and proprietary software required. Therefore, in this paper, fused fiament fabrication (FFF) is proposed as a low-cost AM approach to fabricate 316L SS specimens via a 3-step printing-debinding-and sintering process. The specimens are initially printed on a desktop FFF AM 3D printer by varying nozzle temperatures from 195 – 220°C, followed by debinding up to 427°C for 4 hours, and finally sintering at 1260°C for 4 hours. The results show that nozzle temperature 200°C yielded the highest densification level of 97.6% and highest average hardness value of 292 HV, indicating that 3D printing parameters, particularly nozzle temperature plays an important role in influencing the properties of the sintered specimens. Overall, the results from this study prove that FFF is a viable and cost-effective AM process that has the potential to produce 316L SS parts that meet industrial requirements.

show abstract

Effect of Volume Fraction of Reinforcement and Milling Time on Physical and Mechanical Properties of Al7075–SiC Composites Fabricated by Powder Metallurgy Method

Cited by 28 publications

References 28 publications

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Effect of Milling Time and Reinforcement Volume Fraction on Microstructure and Mechanical Properties of SiCp-Reinforced AA2017 Composite Powder Produced by High-Energy Ball Milling

Experimental investigation and numerical modeling of mechanically alloyed Al-TiC composites

High Densification Level and Hardness Values of Additively Manufactured 316L Stainless Steel Fabricated by Fused Filament Fabrication

Contact Info

Product

Resources

About