An analysis of the factors affecting strengthening in carbon fiber reinforced magnesium composites

Qi, Lehua; Li, Shaolin; Zhang, Ting; Zhou, Jiming; Li, Hejun

doi:10.1016/j.compstruct.2018.10.109

Cited by 33 publications

(14 citation statements)

References 62 publications

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“…Formation of carbidic phase is, however, adverse to the composite. The creation of carbides consumes C atoms of the carbon fibre, thus breaking the original structure of the fibre, which would significantly degenerate the fibre properties [14,15]. The orthorhombic crystal structure was reported for Li 2 C 2 at room temperature that transforms to cubic at about 500 • C [16,17].…”

Section: Bending Testsmentioning

confidence: 99%

Strengthening in MgLi matrix composites reinforced with unidirectional T300 and Granoc carbon fibres

Kúdela¹,

Bajana²,

Orovčík³

et al. 2020

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Mg-2 wt.% Li matrix composites unidirectionally reinforced with T300 and Granoc carbon fibres (∼ 45 vol.%) were prepared by the gas pressure infiltration technique. Lithium alloying stimulates the interfacial bond formation and at the same time causes the damage of carbon fibres by Li2C2 formation. Auger electron spectroscopy was used to detect Li2C2 inside the carbon fibres. The maximum flexural strength (1210 MPa) was achieved in Mg2Li/T300 composites at the shortest infiltration time (5 s) and then decreased monotonously with infiltration time prolongation (up to 60 s). Strengthening in Mg2Li/Granoc composites was much lower when maximum bending strength of 579 MPa was reached.

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Section: Bending Testsmentioning

confidence: 99%

Strengthening in MgLi matrix composites reinforced with unidirectional T300 and Granoc carbon fibres

Kúdela¹,

Bajana²,

Orovčík³

et al. 2020

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“…By substituting the permeability coefficient into Equation (5) the viscous resistance can be calculated is 0.5176 MPa. The external pressure required for infiltration Equation (7) can be obtained from Equations (4) and (5):…”

Section: (2) Dynamic Analysis and Calculation Of Infiltration Pressurementioning

confidence: 99%

“…To prepare 2D-CFRP with excellent properties, the matrix needs be sufficiently and uniformly infiltrated in the 2D carbon fiber preform. Otherwise, there will be pores or local non-infiltration among the carbon fiber bundles, and carbon fibers cannot play the role of reinforcement effectively, which will greatly affect the microstructure and properties of 2D-CFRP [5]. The experimental results show that the infiltration effect of matrix in a 2D carbon fiber preform is partly determined by the infiltration pressure.…”

Section: Introductionmentioning

confidence: 96%

“…At 50 • C, the infiltration pressures in each experiment are 0.5, 0.6, 0.7, 0.8, and 0.9 MPa, respectively, and the pressure is maintained for 3 min. (5) After the heating and pressure stop, the prepared 2D-T300/E44 composite is taken out after the mold is restored to room temperature. The process of preparing 2D-T300/E44 composite by the vacuum infiltration hot pressing molding process is shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

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Influence of Infiltration Pressure on the Microstructure and Properties of 2D-CFRP Prepared by the Vacuum Infiltration Hot Pressing Molding Process

Zhao

Zhang

et al. 2019

Polymers

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The critical infiltration pressures of the matrix in a two-dimensional (2D) carbon fiber preform were calculated theoretically, and the calculated values of the static and dynamic models were 0.115 and 0.478 MPa, respectively. Compared with the dynamic model, there is no viscous resistance or infiltration front gas pressure in the static model, so the static value is obviously lower than the dynamic value. To verify the rationality of theoretical calculation, 2D carbon fiber reinforced plastics (2D-CFRP) with infiltration pressures of 0.5, 0.6, 0.7, 0.8, and 0.9 MPa were prepared by the vacuum infiltration hot pressing molding process. The microstructure of the composite was observed and the bending strength was tested by three-point bending test. The results show that the infiltration pressure has an important influence on the infiltration effect and the bending fracture morphology. When the infiltration pressure is 0.7 MPa, the composite has an excellent infiltration effect. The fibers distribute reasonable in the fracture. Stress can be effectively transferred when the composite material is loaded. And the bending strength of the composite material reaches 627 MPa at this time.

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“…Different geometric types of reinforcing materials are preferred to make the insufficient properties of the metal-based matrix material more acceptable [8]. Forms of silicon [9], carbon [10], boron [11] and other elements [12] such as fiber [10], particle [13], and platelets [14] are used as reinforcement material. The strength, abrasion resistance, corrosion and hardness properties of the new material obtained by combining the metal matrix and reinforcing material in this way are much better than the conventional materials [8].…”

Section: Introductionmentioning

confidence: 99%

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

Çiçek

Aydoğmuş

Sun

2020

Mater. Res. Express

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In this study, research has been made on the aging of metal matrix composite materials produced by the in situ casting system. Mg matrix composite material was produced by the in situ casting system. In this study, 90%Mg+10% Al 12 Si (wt) ingot casting was performed for alloy formation and 1% Pb was added as an alloying element to the melted structure. This study aims to examine the effect of the artificial aging (AA) process on hardness and microstructure after alloying and composite of Mg metal. The in situ casting system was used in the casting of Mg alloy under the Ar gas atmosphere. The material after required casting homogenization process; for the AA process, they were embedded in a powder graphite filled vessel and kept at 350°C for 1 h and then quenched (with 25°C water). Later; after quenching, the materials were kept at 150°C for 2, 4, 12, 16 and 24 h and aged samples were obtained. Microstructure images were obtained from the samples by scanning electron microscope (SEM) and light optical microscope (LOM) and then the hardness values of the micro hardness device were measured. Grain structure because of AA heat treatment; showed changes according to un-aging material. The hardness value is directly proportional to the increasing aging time of the materials applied to the AA process; it was found that the levels increased approximately to 45% (86HV to 125HV) compared to the un-aging material and passed to the fixing phase.

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An analysis of the factors affecting strengthening in carbon fiber reinforced magnesium composites

Cited by 33 publications

References 62 publications

Strengthening in MgLi matrix composites reinforced with unidirectional T300 and Granoc carbon fibres

Strengthening in MgLi matrix composites reinforced with unidirectional T300 and Granoc carbon fibres

Influence of Infiltration Pressure on the Microstructure and Properties of 2D-CFRP Prepared by the Vacuum Infiltration Hot Pressing Molding Process

A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy

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An analysis of the factors affecting strengthening in carbon fiber reinforced magnesium composites

Cited by 33 publications

References 62 publications

Strengthening in MgLi matrix composites reinforced with unidirectional T300 and Granoc carbon fibres

Strengthening in MgLi matrix composites reinforced with unidirectional T300 and Granoc carbon fibres

Influence of Infiltration Pressure on the Microstructure and Properties of 2D-CFRP Prepared by the Vacuum Infiltration Hot Pressing Molding Process

A basic study on artificial aging in Mg-10Al12Si+1Pb alloy

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A basic study on artificial aging in Mg-10Al₁₂Si+1Pb alloy