Microstructure and compressive properties of aluminum matrix syntactic foams containing Al2O3 hollow particles

Rao, D. W.; Yang, Y. W.; Huang, Y.; Sun, J. B.; Pan, Liwen; Hu, Z. L.

doi:10.4149/km_2020_6_395

Cited by 12 publications

(7 citation statements)

References 54 publications

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“…For instance, Pan et al. 32 utilized gravity-assisted infiltration to produce thin-walled hollow Al 2 O 3 sphere reinforced aluminum syntactic foams and asserted that solution aging treatment affected yield strength and compressive strength values positively. Sahu et al.…”

Section: Introductionmentioning

confidence: 99%

“…Up until now, scientific efforts regarding with AMSFs have been usually focused on mechanical properties, and lately, this trend has been continuing in an increasing manner. For instance, Pan et al 32 utilized gravity-assisted infiltration to produce thinwalled hollow Al 2 O 3 sphere reinforced aluminum syntactic foams and asserted that solution aging treatment affected yield strength and compressive strength values positively. Sahu et al 33 analyzed microstructural and mechanical features of cenosphere filled Al 2014 syntactic foam fabricated by stir casting.…”

Section: Introductionmentioning

confidence: 99%

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Investigating on the machinability assessment of precision machining pumice reinforced AA7075 syntactic foam

Bolat

Ergene

Karakılınç

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

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On the road to real applications, although there are lots of efforts focusing on mechanical and physical features in the literature, their machining abilities were examined in a very limited manner. In this study, machining properties of pumice reinforced AA7075 syntactic foams manufactured via the newly offered sandwich infiltration technique were investigated by performing face turning. Physical and microstructural (optical and SEM works) analyses were conducted on fabricated foams to carry out sample characterization. All machining forces were measured for different cutting speeds (25, 50, and 100 m/min) and feed rates (0.05, 0.10, and 0.15 mm/rev). After the turning operation, areal surface roughness values were measured using a 3D surface profilometer and material removal rate (MRR) values were calculated. Besides, chip mixtures including pumice and metal fragments were collected to probe chip morphology in detail. The results showed that machining forces were affected by the operation parameters differently, and the lowest surface roughness was detected at the cutting speed of 100 m/min and 0.05 mm/rev feed rate. Furthermore, the shape of the metal chips changed from long/continuous characteristic to saw-tooth morphology depending on increasing cutting speed levels while pumice particles exhibited breakaway tendency as the feed rates went up.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating on the machinability assessment of precision machining pumice reinforced AA7075 syntactic foam

Bolat

Ergene

Karakılınç

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

show abstract

“…Apart from these newest researches, some researchers worked on heat treating AMSFs and studied Al alloys as matrix materials due to their large-scale usage in several industrial applications and applicability for heat treatment procedures for matrix strengthening. At this point, Rao et al [43] applied different heat treatments on Al 2 O 3 7055-Al matrix syntactic foam samples and reported that the heat treatment improved plateau strength and absorbed energy of the fabricated syntactic. Movahedi et al [29] investigated the probable effects of the heat treatment on expanded perlite filled Zinc (ZA27) syntactic foam and found that applied heat treatment enhanced the specific energy absorption, plateau stress, and energy absorption efficiency of produced foams.…”

Section: Introductionmentioning

confidence: 99%

Effect of aging heat treatment on mechanical properties of expanded glass reinforced syntactic metal foam

Akgün¹,

Bolat²,

Gökşenli³

2021

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Metal matrix syntactic foams (MMSFs) are advanced engineering materials, and their properties like low density, high compression strength, good ductility, and excellent energy absorption capability make them considerably attractive for many industrial applications nowadays. In this research paper, a new production method named sandwich infiltration casting was used to manufacture metal syntactic foams, including Al 7075 matrix and expanded glass (EG) fillers with 2-4 mm diameter. As a result of the porous structure of EG particles, density values of the fabricated aluminum matrix syntactic foams (AMSFs) changed between 1.39 and 1.47 g cm −3 . Micro observations showed that there was perfect harmony between the matrix and EG particles as a consequence of effective process optimization and adequate wettability of the EG spheres. In addition, T6 heat treatment was applied to specific samples to analyze the possible effect of aging on the mechanical properties. The results indicated that expanded glass had great potential for syntactic foam applications compared to the other filler types utilized in previous efforts. Moreover, it was apparent that there was a favorable relationship between the heat treatment and compressive properties (compression strength, plateau strength, and energy absorption ability) of the fabricated foams.

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“…11 Thin-walled hollow ceramics have been frequently researched, and alumina, silicon carbide, and silicon dioxide spheres have been utilized usually. [12][13][14] In recent years, because of the fact that thin-walled spheres are considerably expensive, cellular/porous alternatives such as expanded perlite, expanded glass, and expanded clay have been preferred by diversified research teams owing to their low cost. [15][16][17] Up to date, to figure out the deformation style of MMSFs, the majority of the analytical, experimental, and numerical endeavors have focused on the effects of different filler/matrix combinations, matrix type, reinforcement size, and bimodality on the physical and mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

“…11 Thin-walled hollow ceramics have been frequently researched, and alumina, silicon carbide, and silicon dioxide spheres have been utilized usually. 12–14 In recent years, because of the fact that thin-walled spheres are considerably expensive, cellular/porous alternatives such as expanded perlite, expanded glass, and expanded clay have been preferred by diversified research teams owing to their low cost. 15–17…”

Section: Introductionmentioning

confidence: 99%

Influences of reinforcement size and artificial aging on the compression features of hybrid ceramic filled aluminum syntactic foams

Bolat

Akgün

Gökşenli

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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Over the past years, the number of scientific efforts on aluminum matrix syntactic foams (AMSFs) has increased in a noteworthy manner, and different investigation teams have tried to figure out the physical, microstructural, and mechanical properties of AMSFs. In this paper, different from the previous valuable efforts, an industrial-focused cold chamber die casting machine was utilized during the fabrication instead of commonly used lab-scale techniques. Also, the effects of the reinforcement diameter on the compressive features were analyzed for pumice and expanded glass-added hybrid AMSFs. To ascertain the mechanical properties, quasi-static compression tests were conducted and stress–strain curves were obtained. During the compression tests, the deformation styles of the hybrid foams were followed to comprehend their damage mechanisms. Moreover, half of the samples were subjected to artificial aging treatment and the results were checked up with as-cast samples. According to experimental outcomes, it was obvious that the artificial aging treatment caused superior mechanical properties and triggered brittle-style deformation.

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Microstructure and compressive properties of aluminum matrix syntactic foams containing Al2O3 hollow particles

Cited by 12 publications

References 54 publications

Investigating on the machinability assessment of precision machining pumice reinforced AA7075 syntactic foam

Investigating on the machinability assessment of precision machining pumice reinforced AA7075 syntactic foam

Effect of aging heat treatment on mechanical properties of expanded glass reinforced syntactic metal foam

Influences of reinforcement size and artificial aging on the compression features of hybrid ceramic filled aluminum syntactic foams

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