Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

Huang, Wenzhan; Luo, Hongjie; Mu, Yongliang; Lin, Huakuan; Du, Hao

doi:10.1007/s12613-017-1453-y

Cited by 9 publications

(4 citation statements)

References 20 publications

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“…Magnesium, due to its high biocompatibility and lower density than other types of metallic materials, could be one of the most interesting and suitable candidates for the production of metallic foams [7]. Different types of Mg alloy foams (with closed or open cell structures) have been manufactured with different methods, such as casting or powder metallurgy [8,9]. An important subgroup of metal foams is metal matrix syntactic foam, which is composed of porous or hollow particles that are embedded in a metallic matrix [10].…”

Section: Introductionmentioning

confidence: 99%

Mechanical and Microstructural Characterization of an AZ91–Activated Carbon Syntactic Foam

et al. 2018

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In this study, activated carbon (AC) particles were combined with AZ91 alloy to manufacture a magnesium syntactic foam. This novel lightweight foam has a very low density, in the range of 1.12–1.18 gcm−3. The results show that no chemical reaction occurred between the AZ91 matrix and the activated carbon particles. The mechanical properties of the foam were evaluated under quasi-static compression loading conditions, and showed a consistent trend for the energy absorption of the fabricated AZ91–AC syntactic foams. The deformation mechanism of samples was a brittle fracture mode with the formation of shear bands during the fracture of all samples.

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Section: Introductionmentioning

confidence: 99%

Mechanical and Microstructural Characterization of an AZ91–Activated Carbon Syntactic Foam

et al. 2018

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“…However, the alloying process is extremely complicated and time-consuming, and the resultant damping enhancement is rather limited . Another way is to combine metallic foams with high-damping polymeric coatings by using spraying or sinking techniques. ,− However, there exist some critical problems of weak interfacial bonding and low mechanical reinforcement. , In this case, introducing rich interfaces and forming strong interfacial bonding between reinforcing coatings and metallic foams in a simple way are key issues for achieving both high damping and enhanced strength.…”

Section: Introductionmentioning

confidence: 99%

Improved Damping and High Strength of Graphene-Coated Nickel Hybrid Foams

Wang

Zhang

et al. 2019

ACS Appl. Mater. Interfaces

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Direct growth of graphene on the metal surface opens a door for obtaining high-performance composites in a simple way. In order to obtain both high strength and enhanced damping property of the porous metal, we prepared graphene-coated nickel hybrid foams by chemical vapor deposition technique and investigated the static and dynamic mechanical properties using a dynamic mechanical analyzer and vibration testing systems in detail. We found that the presence of graphene layers could greatly improve both mechanical strength and damping properties of nickel foams. The graphene-coated nickel hybrid foams exhibited high yield strength, compressive modulus, and damping ratio, increased by 46, 22, and 53% in comparison with those of nickel foams. Such significant graphene reinforcement in mechanical and damping properties is mainly attributed to the strong interfacial bonding, remarkable confinement effect, and rich interfaces in hybrid foams. By virtue of its high mechanical strength and enhanced damping properties, the graphene/nickel hybrid foams have great potential to be used as multifunctional composite materials in many fields.

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“…Pure magnesium exhibits an excellent damping capacity but cannot be used as a structural material because of its low strength [1]. Materials used as high-damping engineering structural materials must exhibit both good damping capacity and high strength [2][3]. Normally, the characteristics of the material (e.g., alloying elements, secondary phases, and grain size) can improve strength while 2 simultaneously influencing damping capacity.…”

Section: Introductionmentioning

confidence: 99%

Effect of alloying elements on magnesium alloy damping capacities at room temperature

Wan

et al. 2019

Int J Miner Metall Mater

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Alloying is a good approach to increasing its strength but leads to a reduction of damping to pure magnesium. Classifying the alloying characteristics of various alloying elements in magnesium alloys and their combined effects on the damping and mechanical properties of magnesium alloys is important. In this paper, the properties of the Mg-0.6wt%X binary alloys were analyzed through strength measurements and dynamic mechanical analysis. The effects of foreign atoms on solid-solution strengthening and dislocation damping were studied comprehensively. The effect of solid solubility on damping capacity can be considered from two perspectives: the effect of single solid-solution atoms on the damping capacities of the alloy, and the effect of solubility on the damping capacities of the alloy. The results provide significant information that is useful in developing high-strength, high-damping magnesium alloys. This study will provide scientific guidance regarding the development of new types of damping magnesium alloys.

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Low-frequency damping behavior of closed-cell Mg alloy foams reinforced with SiC particles

Cited by 9 publications

References 20 publications

Mechanical and Microstructural Characterization of an AZ91–Activated Carbon Syntactic Foam

Mechanical and Microstructural Characterization of an AZ91–Activated Carbon Syntactic Foam

Improved Damping and High Strength of Graphene-Coated Nickel Hybrid Foams

Effect of alloying elements on magnesium alloy damping capacities at room temperature

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