Production and Properties of 316<scp>L</scp> Stainless Steel Cellular Materials and Syntactic Foams

Weise, Jörg; Lehmhus, Dirk; Baumeister, Joachim; Kun, Róbert; Bayoumi, Mohamed A.; Busse, Matthias

doi:10.1002/srin.201300131

Cited by 48 publications

(49 citation statements)

References 30 publications

(52 reference statements)

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“…Most processes investigated so far limit the effective range of porosities to an approximate maximum at around 50%. At the same time, several publications point at the fact that properties specifically under tensile load could benefit from improved interface strength between matrix and hollow particle, which is typically not achieved today [4,5]. The present study reverses the usual processing sequence by creating the interface between metal phase and hollow particles first and consolidating the resulting particles to form macroscopic bodies afterwards.…”

Section: Introductionmentioning

confidence: 78%

“…In terms of density-normalized strength values, however, the properties determined are similar to those known from several other types of foams in a matching density range. An example can be drawn from comprehensive comparisons of the latter, such as those by Weise et al [4], which have partially been taken up, focusing on the lower density range, in Figure 4 below: note, however, that the comparison is semi-quantitative at best, since strength definitions vary among the data gathered from the literature.…”

Section: Discussionmentioning

confidence: 99%

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Vibration-Assisted Sputter Coating of Cenospheres: A New Approach for Realizing Cu-Based Metal Matrix Syntactic Foams

Shishkin

Drozdova

Kozlov³

et al. 2017

Metals

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Abstract:The coating of hollow alumino-silicate microspheres or cenospheres with thin layers of Cu by means of vibration-assisted magnetron sputtering yields a starting material with considerable potential for the production of new types of metal matrix syntactic foams as well as optimized variants of conventional materials of this kind. This study introduces the coating process and the production of macroscopic samples from the coated spheres via spark plasma sintering (SPS). The influence of processing parameters on the coating itself, and the syntactic foams are discussed in terms of the obtained density levels as a function of sintering temperature (which was varied between 850 and 1080 • C), time (0.5 to 4 min), and surface appearance before and after SPS treatment. Sintering temperatures of 900 • C and above were found to cause breaking-up of the homogeneous sputter coating into a net-like structure. This effect is attributed to wetting behavior of Cu on the alumino-silicate cenosphere shells. Cylindrical samples were subjected to conductivity measurements and mechanical tests, and the first performance characteristics are reported here. Compressive strengths for Cu-based materials in the density range of 0.90-1.50 g/cm 3 were found to lie between 8.6 and 61.9 MPa, depending on sintering conditions and density. An approximate relationship between strength and density is suggested based on the well-known Gibson-Ashby law. Density-related strength of the new material is contrasted to similar findings for several types of established metal foams gathered from the literature. Besides discussing these first experimental results, this paper outlines the potential of coated microspheres as optimized filler particles in metal matrix syntactic foams, and suggests associated directions of future research.

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Section: Introductionmentioning

confidence: 78%

Section: Discussionmentioning

confidence: 99%

Vibration-Assisted Sputter Coating of Cenospheres: A New Approach for Realizing Cu-Based Metal Matrix Syntactic Foams

Shishkin

Drozdova

Kozlov³

et al. 2017

Metals

Self Cite

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“…In most cases the matrix material is aluminium alloy, but steel [1][2][3][4][5], magnesium [6] and titanium [7][8][9] matrices have also been investigated. The most common filler materials are the ceramic [10][11][12][13][14][15] or metallic [10] hollow spheres but in order to reduce the costs of the MMSFs perlite [16][17][18] or pumice [19] are used as well.…”

Section: Introductionmentioning

confidence: 99%

Structural Damages in Syntactic Metal Foams Caused by Monotone or Cyclic Compression

Katona

Orbulov

2017

Period. Polytech. Mech. Eng.

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“…The mechanical tests of the tubes revealed high energy absorption capacity and improved mechanical stability. Lehmhus and Weise et al [17][18][19][20] and Castro et al [21][22] investigated high strength, steel based syntactic foams under different conditions and found that although the density of the produced foams is higher, it is compensated by their higher strength and energy 4 absorption. Goel et al [23][24][25] focused on the effect of strain rate on the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Global Approach of Tribomechanical Development of Hybrid Aluminium Matrix Syntactic Foams

et al. 2016

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Hybrid syntactic foams with AlSi12 aluminum matrix were produced by pressure infiltration. The volume ratio of iron and ceramic hollow sphere reinforcement (in the same size range) was varied and hybrid syntactic foams were also produced with bimodal size ceramic reinforcement. 2Previously a very detailed analysis of the mechanical properties of the composites was made with quasi-static compression tests and their tribological properties were investigated by pin-on-disc method in dry and lubricated conditions. The present article establishes and clarifies the correlations between mechanical and tribological properties. The coefficient of friction, height loss of the specimens and specific wear showed good correlation to different mechanical parameters e.g. density, structural stiffness and yield strength.The established trends and correlations between mechanical and tribological behavior enables a better understanding for materials design and selection for further applications for mechanically loaded sliding machine parts.

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Production and Properties of 316L Stainless Steel Cellular Materials and Syntactic Foams

Cited by 48 publications

References 30 publications

Vibration-Assisted Sputter Coating of Cenospheres: A New Approach for Realizing Cu-Based Metal Matrix Syntactic Foams

Vibration-Assisted Sputter Coating of Cenospheres: A New Approach for Realizing Cu-Based Metal Matrix Syntactic Foams

Structural Damages in Syntactic Metal Foams Caused by Monotone or Cyclic Compression

Global Approach of Tribomechanical Development of Hybrid Aluminium Matrix Syntactic Foams

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