Magnesium matrix composite reinforced by nanoparticles – A review

Nie, Kai-bo; Wang, X.J.; Deng, Kun-kun; Hu, X.S.; Wu, Kun

doi:10.1016/j.jma.2020.08.018

Cited by 197 publications

(58 citation statements)

References 138 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The issue of weight reduction of mechanical structures has become a popular topic among others in terms of achieving the required CO 2 emission reduction. The performance of lightweight alloys and their composites has fascinated the automobile and aerospace industries and offers a potential way to substitute existing steel [ 1 ]. Thus, scientific research and commercial applications are increasingly focusing on magnesium (Mg) and its alloys due to their low density, which is approximately two-thirds the density of aluminum, high strength-to-weight ratio, and high damping capacity, making them recommended for many engineering applications [ 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers

et al. 2022

View full text Add to dashboard Cite

In this study, AZ91/23 vol.% short carbon fiber composite was produced by a squeeze casting technique using a cylindrical pre-form of treated carbon fibers, in which the fibers are randomly oriented in the horizontal plane. Cylindrical specimens (height = 9 mm and diameter = 6 mm) were machined from the as-cast AZ91 matrix and its composite. The full behavior of the produced composite was studied through the test specimens machined in two directions, namely parallel to the reinforced plane (in the radial direction of the cast cylinder) and normal to the reinforced plane (in the axial direction of the cast composite). The microstructures of the produced composite specimens were investigated using SEM equipped with EDS analysis. Density, hardness, compressive, and wear behavior were also investigated. For comparison, the AZ91 matrix was evaluated as a reference. The microstructure of the produced AZ91 matrix alloy and its composite revealed dense materials without casting defects. Both composite specimens show improvement in hardness, compressive strength, and wear properties over the AZ91 matrix. The compressive and wear properties are more fiber orientation-dependent than the hardness results. The parallel composite specimen depicts the highest compressive properties in terms of yield compressive strength (311 MPa) and ultimate compressive strength (419 MPa), compared to that shown by the AZ91 matrix and the normal composite specimen. This improvement in compressive strength was at the expense of ductility. The parallel composite specimen shows the lowest ductility (R = 3.8%), compared to that given by the normal composite specimen (R = 7.1) and the AZ91 matrix alloy (R = 13.6). The wear testing results showed that at the highest wear load of 5 N, the material weight loss of the parallel composite specimen decreases by 44% and 64% compared to the AZ91 matrix and the normal composite specimen, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers

et al. 2022

View full text Add to dashboard Cite

show abstract

“…A slightly higher modulus of elasticity can be obtained by introducing additional reinforcing phases into the magnesium matrix. The varied particulate-reinforced [2][3][4], fiber-reinforced [5][6][7] and laminated [8][9][10] magnesium composites have been fabricated. It is obvious that improvement of the composites properties depend strongly on the volume fraction, shape and morphology of reinforcing particles.…”

Section: Introductionmentioning

confidence: 99%

MICROSTRUCTURE EVOLUTION OF LAMINATED Magnesium – INTERMETALLICS COMPOSITE

Konieczny

2022

METAL 2022 Conference Proeedings

View full text Add to dashboard Cite

Magnesium-intermetallics laminated composites have been fabricated through reactive bonding at 490 °C in vacuum using magnesium sheets and copper foils. Investigations were concerned with the structural transformations of a Mg-Cu couple boundary. Holding for only a few minutes resulted in the formation of thin layers at the investigated interface. Prolongation of the heating time lead to reactions in the liquid state and completely disappearing of copper layers. Therefore, the final microstructure consisted of alternating layers of unreacted magnesium and intermetallics. The microstructure was revealed in optical and scanning electron microscopy (SEM). The study exhibited the presence of different reaction products in the diffusion zone and their chemical compositions were determined by X-ray microprobe analysis. The occurrence of two different intermetallic compounds Cu2Mg and CuMg2was predicted from the Cu-Mg binary phase diagram. The predominant part of the intermetallic layers was the hypoeutectic mixture of CuMg2and solid solution of copper in magnesium, since a liquid front of reaction was moving into the magnesium sheets. The microhardness of the reaction products and the elemental components was comparatively measured.

show abstract

“…Ceramic hard particles, such as Al 2 O 3 , ZnO, SiC, TiC and Y 2 O 3 , have been widely studied for application in Mg-based composites. However, the difference of thermal expansion coefficient, poor wettability and interfacial reaction have hindered their application [ 6 ]. To solve the issues, metallic glass (MG) phase reinforcement has been studied.…”

Section: Introductionmentioning

confidence: 99%

Al0.5CoCrFeNi2 High Entropy Alloy Particle Reinforced AZ91 Magnesium Alloy-Based Composite Processed by Spark Plasma Sintering

Chiu

Chang

2021

Materials

View full text Add to dashboard Cite

In this study, AZ91 magnesium-alloy-based metal matrix composites (MMCs) reinforced with 10 wt% of Al0.5CoCrFeNi2 high-entropy alloy (HEA) particles and SiC particles were prepared by a spark plasma sintering (SPS) process at 300 °C. The effects of reinforcements on the microstructure and mechanical properties of AZ91-based MMCs were studied. The results showed that AZ91–HEA composite consisted of α-Mg, Mg17Al12 and FCC phases. No interfacial reaction layer was observed between HEA particles and the Mg matrix. After adding HEA into AZ91, the compressive yield strength (C.Y.S) of the AZ91–HEA composite increased by 17% without degradation of failure strain. In addition, the increment in C.Y.S brought by HEA was comparable to that contributed by commonly used SiC reinforcement (15%). A relatively low porosity in the composite and enhanced interfacial bonding between the α-Mg matrix and HEA particles make HEA a potential reinforcement material in MMCs.

show abstract

Magnesium matrix composite reinforced by nanoparticles – A review

Cited by 197 publications

References 138 publications

Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers

Microstructure and Mechanical Properties of AZ91 Rein-Forced with High Volume Fraction of Oriented Short Carbon Fibers

MICROSTRUCTURE EVOLUTION OF LAMINATED Magnesium – INTERMETALLICS COMPOSITE

Al0.5CoCrFeNi2 High Entropy Alloy Particle Reinforced AZ91 Magnesium Alloy-Based Composite Processed by Spark Plasma Sintering

Contact Info

Product

Resources

About