Effect of volume fraction and particle size on the microstructure and plastic deformation of Mg–Y2O3 composites

Garcés, G.; Rodrı́guez, M. Morales; Pérez, P.; Adeva, P.

doi:10.1016/j.msea.2006.01.026

Cited by 97 publications

(47 citation statements)

References 30 publications

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“…The compressive yield strength generally decreases in the materials which exhibit strong basal texture which favors the activation of twinning in the {10-12} <10-11> system [35][36][37]. However, with texture randomization, an increase in compressive yield strength was observed in Mg/Y 2 O 3 composite in the related study [38]. The current compressive yield strength improvement in AZ51 is in agreement with the reported compressive yielding variation observed in the Mg/Y 2 O 3 composite [38].…”

Section: Compressive Propertiessupporting

confidence: 83%

“…However, with texture randomization, an increase in compressive yield strength was observed in Mg/Y 2 O 3 composite in the related study [38]. The current compressive yield strength improvement in AZ51 is in agreement with the reported compressive yielding variation observed in the Mg/Y 2 O 3 composite [38]. On the other hand, a significant improvement in ultimate compressive strength was observed in AZ51/Y 2 O 3 composite when compared to the rest of the synthesized materials (see Table 3).…”

Section: Compressive Propertiesmentioning

confidence: 74%

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Investigation on the Mechanical Properties of Mg-Al Alloys (AZ41 and AZ51) and Its Composites

Tun

Minh

Nguyen

et al. 2012

Metals

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Abstract:In the present study, AZ41 and AZ51 alloys were fabricated using disintegrated melt deposition technique followed by hot extrusion. AZ41/Yttria and AZ51/Yttria composites were prepared using 0.6 wt% yttria nano particles in the alloys using the same fabrication technique. From the tensile test results, both strengths (yield and tensile) and ductility were improved in AZ51 when compared to AZ41. In comparison with its alloy counterparts, the yield and tensile strengths were enhanced while maintaining the same ductility in AZ41/Yttria composite, but comparable strengths with decreased ductility were observed in AZ51/Yttria composite. Under compressive loading, an improvement in strengths with similar ductility was observed in AZ51 when compared to AZ41. The best combination of strengths and ductility was observed in AZ51/Yttria composites from compression test results. The obtained mechanical properties are correlated with the microstructure observations.

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Section: Compressive Propertiessupporting

confidence: 83%

Section: Compressive Propertiesmentioning

confidence: 74%

Investigation on the Mechanical Properties of Mg-Al Alloys (AZ41 and AZ51) and Its Composites

Tun

Minh

Nguyen

et al. 2012

Metals

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“…Many attempts have been made to improve the mechanical properties of magnesium by developing magnesium-base metal-matrix composites, such as Y 2 O 3 /Mg, Al 2 O 3 /Mg, SiCp/Mg and Ti/Mg, during the past decades. [1][2][3][4][5] Recently, the researchers focused on the lighter reinforcements, such as graphene and carbon nanotube (CNT), to enhance the mechanical properties of Mg alloys. [6][7] Graphene, a single atomic layer of sp 2 hybridized carbon, has extraordinary electrical, thermal, and physical properties.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of graphene nanosheets/magnesium composites processed through powder metallurgy

Du¹,

Zheng²,

Liu³

2017

Mater. Tehnol.

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Magnesium-matrix composites reinforced with graphene nanosheets (Mg-Gr) were fabricated using a combination of powder metallurgy and hot rolling. The effects of the graphene-nanosheet content on the microstructures and density of the composites were investigated. It was found that the graphene nanosheets were gradually dispersed in the magnesium matrix with an increasing ball-milling time and a uniform dispersion was achieved after 72 h for the composite with a graphene content of 1.0 % of mass fraction. In addition, no obvious agglomeration of graphene was observed in the as-sintered and as-rolled composites with the graphene contents of up to 1.0 % of mass fraction. A coordinated deformation of multilayer graphene nanosheets occurs with a deformation of the surface grains during the rolling, which may cause a significant reduction in the number of layers of the graphene nanosheets. When increasing the graphene content, the density of the Mg-Gr composites shows an increase. Keywords: magnesium-matrix composites, graphene nanosheets, powder metallurgy Kompoziti s kovinsko osnovo, ki so bili oja~ani z grafitnimi nanoplastmi (Mg-Gr), so izdelani s kombinacijo postopkov metalurgije prahov in metodami vro~ega valjanja. Raziskani so bili vpliv vsebnosti grafitnih nanosov na mikrostrukturo in gostoto kompozitov. Ugotovljeno je bilo, da se grafenske nanoplasti postopoma razpr{ijo v magnezijevo matriko, s pove~anjem~asa krogli~nega mletja. Pri kompozitu z 1,0 % ute`nih odstotkov vsebnosti grafena so dobili enakomerno disperzijo po 72 h mletja. Pri obeh, sintranih in valjanih kompozitih niso opazili nobene o~itne aglomeracije grafena do vsebnosti 1,0 % ute`nih odstotkov grafena. Med valjanjem je isto~asno z deformacijo povr{inskih zrnpotekala usklajena deformacija grafesnkih nanoplasti, kar lahko povzro~i znatno zmanj{anje {tevila grafenskih nanoplasti. Z zvi{evanjem vsebnosti grafena se je pove~evala gostota Mg-Gr kompozitov. Klju~ne besede: kovinski kompoziti, oja~ani z grafenom; grafitne nanoplasti, metalurgija prahov

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“…This texture results in an additional reinforcement effect when the stress axis is parallel to the basal plane because of the inhibition of the basal slip system (i.e. unique slip system at room temperature) [11,12]. It has been observed that the addition of ceramic particles induces a decrease of the f1 0 1 0g fibre texture and, therefore, a decrease in the yield stress and in the tension/compression asymmetry when the composite is deformed in the extrusion direction [11,12].…”

Section: Introductionmentioning

confidence: 99%

“…The mechanical properties at room temperature of the Mg-Y 2 O 3 composites produce by powder metallurgy has been recently studied [12]. The composite yield stress depends strongly on the intensity of the f1 0 1 0g fibre texture and decreases with the yttria volume fraction.…”

Section: Introductionmentioning

confidence: 99%

High temperature mechanical properties of Mg–Y2O3 composite: Competition between texture and reinforcement contributions

Garcés

Rodrı́guez

Pérez

et al. 2007

Composites Science and Technology

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Effect of volume fraction and particle size on the microstructure and plastic deformation of Mg–Y2O3 composites

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Cited by 97 publications

References 30 publications

Investigation on the Mechanical Properties of Mg-Al Alloys (AZ41 and AZ51) and Its Composites

Investigation on the Mechanical Properties of Mg-Al Alloys (AZ41 and AZ51) and Its Composites

Synthesis and characterization of graphene nanosheets/magnesium composites processed through powder metallurgy

High temperature mechanical properties of Mg–Y2O3 composite: Competition between texture and reinforcement contributions

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