Comparative Study on Morphological, Physical and Mechanical Characteristics of L-PBF Based AlSi10Mg Parts with Conventional Stir Casted Al-10 %SiC Composites

Kumar, M. Saravana; Mohan, E.; Robinson, S.; Prasad, D. Thivya

doi:10.1007/s12633-021-01065-9

Cited by 21 publications

(6 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The stir casting method was used to manufacture AMMCs because of its superior bonding of the reinforcements into the matrix, low cost, simplicity, and high controllability. 1,3,21,22…”

Section: Methodsmentioning

confidence: 99%

Effect of ceramic particle reinforcement type and process parameters on abrasive water jet processing of aluminum metal matrix composites fabricated by stir casting and hot rolling

Bilgin

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

In the present study, three AA6061 composites reinforced with 8% SiC, B4C, and Al2O3 were produced using the stir casting method. The composite specimens were molded in the thickness of 20 mm, and then the thicknesses of the samples were reduced to 7 mm by employing a hot rolling process at 450 °C. The effect of abrasive water jet cutting parameters such as nozzle speed (NS) and stand-off distance (SOD) on the kerf taper angle (KTA) and surface roughness (SR) were studied. The experiments were conducted based on the Taguchi L9 orthogonal array and the experimental results were analyzed by using the analysis of variance (ANOVA). The test results revealed that the most effective cutting variable on the KTA and SR was the type of reinforcement ceramic particle. The lowest KTA and the best SR values were recorded in the cutting of the Al2O3-reinforced composite specimen. The influence of the ceramic particle reinforcements on the SR and KTA was 60.6% and 65.1%, respectively. The effect ratio of the SOD, the second most effective process variable, to the SR is 28.1%, while the effect ratio to the KTA is 22.0%. Predictive models were developed for the KTA ( R2 = 93.29%) and SR ( R2 = 91.84) by the regression analysis. A close correlation with the ratio of 95.43% was achieved between the KTA and SR.

show abstract

“…The stir casting method was used to manufacture AMMCs because of its superior bonding of the reinforcements into the matrix, low cost, simplicity, and high controllability. 1,3,21,22…”

Section: Methodsmentioning

confidence: 99%

Effect of ceramic particle reinforcement type and process parameters on abrasive water jet processing of aluminum metal matrix composites fabricated by stir casting and hot rolling

Bilgin

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

show abstract

“… Overview of room temperature properties of AlSi10Mg produced via the LPBF process as reported in the scientific literature [ 16 , 18 , 21 , 22 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]: ( a ) ultimate tensile strength (UTS) plotted vs. yield strength (YS), and ( b ) elongation at failure plotted vs. UTS. The data cover different printing directions, process parameters and heat treatment states, namely as-built (AB), stress-relieved (SR), solution heat-treated (SHT) and warm-aged (WA), plus combinations of these.…”

Section: Figurementioning

confidence: 99%

“… 379.67 226.63 8.18 [ 39 ] PA not specified, P Laser 200 W, Concept Laser M2, N 2 atm. 383.67 247.67 9.833 [ 30 ] PA 90°, P Laser 370 W, v S = 1.3 m/s, tested as-built, EOS M280. 386 (2.6) 248 (1.7) 8.6 (1.4) [ 35 ] BP @ 160 °C, PA 90°, tested as-built.…”

Section: Table A1mentioning

confidence: 99%

See 1 more Smart Citation

High-Temperature Mechanical Properties of Stress-Relieved AlSi10Mg Produced via Laser Powder Bed Fusion Additive Manufacturing

et al. 2022

View full text Add to dashboard Cite

The present study is dedicated to the evaluation of the mechanical properties of an additively manufactured (AM) aluminum alloy and their dependence on temperature and build orientation. Tensile test samples were produced from a standard AlSi10Mg alloy by means of the Laser Powder Bed Fusion (LPBF) or Laser Beam Melting (LBM) process at polar angles of 0°, 45° and 90°. Prior to testing, samples were stress-relieved on the build platform for 2 h at 350 °C. Tensile tests were performed at four temperature levels (room temperature (RT), 125, 250 and 450 °C). Results are compared to previously published data on AM materials with and without comparable heat treatment. To foster a deeper understanding of the obtained results, fracture surfaces were analyzed, and metallographic sections were prepared for microstructural evaluation and for additional hardness measurements. The study confirms the expected significant reduction of strength at elevated temperatures and specifically above 250 °C: Ultimate tensile strength (UTS) was found to be 280.2 MPa at RT, 162.8 MPa at 250 °C and 34.4 MPa at 450 °C for a polar angle of 0°. In parallel, elongation at failure increased from 6.4% via 15.6% to 26.5%. The influence of building orientation is clearly dominated by the temperature effect, with UTS values at RT for polar angles of 0° (vertical), 45° and 90° (horizontal) reaching 280.2, 272.0 and 265.9 MPa, respectively, which corresponds to a 5.1% deviation. The comparatively low room temperature strength of roughly 280 MPa is associated with stress relieving and agrees well with data from the literature. However, the complete breakdown of the cellular microstructure reported in other studies for treatments at similar or slightly lower temperatures is not fully confirmed by the metallographic investigations. The data provide a basis for the prediction of AM component response under the thermal and mechanical loads associated with high-pressure die casting (HPDC) and thus facilitate optimizing HPDC-based compound casting processes involving AM inserts.

show abstract

“…AMCs are now made using various traditional and innovative technologies. [7][8][9][10] The processing procedure determines the characteristics of AMCs. The liquid state technique of processing is often used due to its simplicity, ease of adoption and adaptability for mass production.…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical behaviour and grain characteristics of aluminium matrix composites by cold rolling and reinforcement addition (Rice husk ash and Coal fly ash)

Olorunyolemi

Ogunsanya

Akinwande

et al. 2022

Proceedings of the Institution of Mechanical Engineers, Part E:

View full text Add to dashboard Cite

Aluminium matrix composites significantly benefit the manufacturing sector due to the high strength-to-weight ratio. However, grain refinement was one of the major problems faced by the research community and also as-cast AA6063 contained eutectic silicon with sharp, long elongated laths that consequently reduces strength and limit their applications. So, the prime novelty of this research work is to refine the grains by performing the cold rolling operation in AA6063 and incorporating rice husk ash and coal fly ash in the AA6063 matrix to break those eutectic laths which attributes to the enhancement of the mechanical properties. Rice husk ash and coal fly ash were chosen because they are economical, possess low density and are available in enormous quantities as solid waste by-products. They contain a substantial concentration of SiO2 and serve as a viable reinforcement for improving the mechanical properties of aluminium composites. In this research, the grain characteristics along with the mechanical properties of aluminium composites reinforced with rice husk ash and coal fly ash, produced by the stir casting technique were investigated. The reinforcements were added in varying concentrations (1.5 and 3.0 wt.%). Six specimens were fabricated of which five were cold rolled. Image J and Origin software was used in evaluating the average grain size of the fabricated alloys and their composites. The results were discussed with the help of grain size distribution and profile plots. Structural and composition studies were done using scanning electron microscopy, energy-dispersive X-ray spectroscopy and X-ray diffraction spectroscopy. Hardness and tensile tests were performed on the fabricated composites. The outcome of this research reveals, AA6063-3 wt.% rice husk ash composite has improved hardness (84HV) and tensile strength (156 MPa). Moreover, the average grain size of 10.52 µm was the main reason for the attainment of enhanced mechanical properties.

show abstract

Comparative Study on Morphological, Physical and Mechanical Characteristics of L-PBF Based AlSi10Mg Parts with Conventional Stir Casted Al-10 %SiC Composites

Cited by 21 publications

References 42 publications

Effect of ceramic particle reinforcement type and process parameters on abrasive water jet processing of aluminum metal matrix composites fabricated by stir casting and hot rolling

Effect of ceramic particle reinforcement type and process parameters on abrasive water jet processing of aluminum metal matrix composites fabricated by stir casting and hot rolling

High-Temperature Mechanical Properties of Stress-Relieved AlSi10Mg Produced via Laser Powder Bed Fusion Additive Manufacturing

Enhanced mechanical behaviour and grain characteristics of aluminium matrix composites by cold rolling and reinforcement addition (Rice husk ash and Coal fly ash)

Contact Info

Product

Resources

About