Effect of strain rate and temperature on the mechanical behavior of magnesium nanocomposites

Xiao, Jing; Shu, Dong Wei; Wang, X.J

doi:10.1016/j.ijmecsci.2014.10.003

Cited by 27 publications

(8 citation statements)

References 40 publications

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“…The reduction of the weight of vehicles can enhance the fuel efficiency and limit greenhouse gas emissions, ultimately improving environmental protection [4][5][6]. Because of their remarkable properties, including a low density, high specific strength and stiffness, and improved deformability [7][8][9][10][11][12], aluminum and magnesium-based alloys and composites are evolving as potential replacements for conventional materials in the automobile, ship and aerospace industries; electronic products; and industrial equipment [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Shahid

Scudino

2018

Metals

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Lightweight metal matrix composites are synthesized from elemental powder mixtures of aluminum and magnesium using pressure-assisted reactive sintering. The effect of the reaction between aluminum and magnesium on the microstructure and mechanical properties of the composites due to the formation of β-Al3Mg2 and γ-Al12Mg17 intermetallics is investigated. The formation of the intermetallic compounds progressively consumes aluminum and magnesium and induces strengthening of the composites: the yield and compressive strengths increase with the increase of the content of intermetallic reinforcement at the expense of the plastic deformation. The yield strength of the composites follows the iso-stress model when the data are plotted as a function of the intermetallic content.

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Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Shahid

Scudino

2018

Metals

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“…The strain hardening exponent n can be calculated by Eq. (4) [30]: = log log (4) where and represent true stress and true strain, respectively. Comparing the curves shown in Fig.…”

Section: 4-strain Rate Sensitivitymentioning

confidence: 99%

Effect of strain rate on deformation behavior of aluminum matrix composites with Al2O3 nanoparticles

Zaiemyekeh

Liaghat

Ahmadi

et al. 2019

Materials Science and Engineering: A

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This study aims to investigate the quasi-static and high strain rate deformation of an aluminumbased metal matrix composite reinforced with Al2O3 nanoparticles. The addition of Al2O3 nanoparticles with an optimal weight percentage increased the strength and energy absorption capacity of the composite material. The deformation characteristics of the material were found to be strain rate sensitive. It was concluded that the usage of an optimal weight percentage of nanoparticles results in a markedly higher energy absorption capacity in a variety of strain rates of deformation. Moreover, the energy absorption capacity of the present metal matrix composites increased significantly at the higher strain rates of deformation. It was found that the excessive addition of nanoparticles to the metal matrix decreases the energy absorption capacity as well as strain rate sensitivity of the composite material.

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“…But bringing Mg parts to the market requires a several important study of its mechanical behaviour, its anisotropy, and it is also crucial to understand Mg alloys behaviour at high strain rates, especially in the automotive field where the components are often subjected to crash events. Currently in literature there are few information about the tensile properties of Mg alloys at high strain rates, and the studies available are mostly on extruded and cast material, and predominantly in compression [19][20][21][22]. Ulacia et al [19] performed an exhaustive testing campaign on AZ31-O sheet at dynamic (ε ∼ 10 3 S −1 ) and low (ε ∼ 10 3 S −1 ) strain rates, in tension and compression.…”

Section: Magnesium Alloy Characterizationmentioning

confidence: 99%

“…He showed the different microstructural evolution at high strain rates and high temperatures. J. Xiao et al [20] carried out impact test on AZ31 Mg alloy reinforced by 1% vol silicon carbide nanoparticles, showing strong rate dependence, increasing in flow stress as the strain rate increases. Hasenpouth [22] performed tensile test on AZ31B magnesium alloy sheets, at low, medium and high strain rates.…”

Section: Magnesium Alloy Characterizationmentioning

confidence: 99%

Application of the dynamic characterization of metals in automotive industry

D’Aiuto

Federici

et al. 2015

EPJ Web of Conferences

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This paper presents the experimental methodology used by R&D EMEA-Global Materials Labs Department to test metals at high strain rate of 500 s −1. The implementation of dynamic results in commercial FEM Software LS-DYNA for crash simulation are presented. The effects of the strain rate on the tensile properties of metals, used in automotive field, are evaluated using results obtained from a direct tension split Hopkinson bar, built in collaboration with the University of Applied Sciences of Southern Switzerland DynaMat Lab. Finally the complete mechanical characterization of the Magnesium alloy AZ31B is presented, from static up to dynamic tests, showing its applications in FCA (Fiat Chrysler Automobiles), problems and future developments.

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Effect of strain rate and temperature on the mechanical behavior of magnesium nanocomposites

Cited by 27 publications

References 40 publications

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Microstructure and Mechanical Behavior of Al-Mg Composites Synthesized by Reactive Sintering

Effect of strain rate on deformation behavior of aluminum matrix composites with Al2O3 nanoparticles

Application of the dynamic characterization of metals in automotive industry

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