Study on the effect of CeO2 for fabricating in-situ TiB2/A356 composites with improved mechanical properties

Xue, Junqing; Wu, Wenbo; Ma, Jianbo; Huang, Haijun; Zhao, Zhongbin

doi:10.1016/j.msea.2020.139416

Cited by 25 publications

(13 citation statements)

References 34 publications

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“…Xue et al 56 reported the formation of AlSiCe and Al 4 Ce for an Al-6.97Si-0.36Mg alloy reinforced with 1% CeO 2 . AlSiCe had needle-like or block irregular morphologies and bad bonding with the matrix, which decreased the mechanical properties.…”

Section: Ceomentioning

confidence: 99%

“…For MMSF characteristics of the hollow reinforcements such as porosity percentage and wall thickness also affect the mechanical properites 45 . Among the most reported reinforcements for AMC are carbides (SiC, B 4 C, WC, TiC) [46][47][48][49][50][51][52] , oxides (Al 2 O 3 , SiO 2 , TiO 2 , ZrO 2 , Y 2 O 3 , MgO, CeO 2 ) [53][54][55][56][57][58] , nitrides (Si 3 N 4 , BN) [59][60][61] and Carbon Nanotubes (CNTs) [62][63][64][65][66][67] . For the case of syntactic foams there have been mainly reported metallic or ceramics hollow spheres, being Fe, SiC, SiO 2 and Al 2 O 3 the most used [40][41][42][43][44][45][68][69][70][71][72] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

An Overview of the Interactions Between Reinforcements and Al Matrices with Si, Cu And Mg as Alloying Elements in Aluminum Matrix Composites: Case of Oxide Reinforcements

et al. 2022

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Section: Ceomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

An Overview of the Interactions Between Reinforcements and Al Matrices with Si, Cu And Mg as Alloying Elements in Aluminum Matrix Composites: Case of Oxide Reinforcements

et al. 2022

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“…TiB 2 particles could improve the tensile strength and elongation of TiB2/Al-4.5Cu-0.4Mn composite. Xue Jing [32,33] added CeO 2 in the preparation of in situ TiB 2 /2014 aluminum matrix composites. The results show that when 0.5% CeO 2 is added, the dispersion of TiB 2 particles can be significantly improved, and the TiB 2 particles do not agglomerate, so that the TiB 2 particles can be uniformly dispersed in the aluminum matrix.…”

Section: Introductionmentioning

confidence: 99%

Effect of holding time and Ti/B molar ratio on microstructure and mechanical properties of in-situ TiB₂/Al composites fabricated by mixed salt reaction

Xie¹,

Cao²

2023

Mater. Res. Express

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In this study, in-situ TiB 2 /Al composites is fabricated by K 2 TiF 6 and KBF 4systems. The effects of process parameters on the size, distribution and morphologyof in-situ TiB 2 particles, as well as the microstructure and mechanical properties of thecomposite is analyzed. When the mixed salts is added at 750 °C, TiB 2 particles areshort rods. When the temperature is higher than 825 °C, TiB 2 particles are cubiccolumns and hexagonal columns. When the reaction temperature is 825 °C, the grainrefinement of the composite is most obviously. When the holding time is 80 min, TiB 2particles are uniformly distributed in the matrix and the size is less than 2 μm. Theultimate tensile strength, yield strength and elongation of the composite reach themaximum values of 230 MPa, 125 MPa and 9.5%. When the holding time is 110 min,TiB 2 particles agglomerate at the grain boundary, and the mechanical properties of thecomposites decrease. When the Ti/B molar ratio is 1/1, in addition to forming TiB 2particles, large size hard brittle phase TiAl 3 appear in the microstructure. When theTi/B molar ratio is 1/2.2, the formation of hard brittle phase TiAl 3 can be inhibited,TiB 2 particles are uniformly distributed in the matrix and the grain refinement is mostobviously. The ultimate tensile strength, yield strength and elongation of thecomposite reach the maximum values of 225 MPa, 110 MPa and 8.5%. When the Ti/Bmolar ratio is 1/3, the unreacted residual mixed salts appear in the microstructure ofthe composite, and the residual mixed salts impurities exist at the interface betweenTiB 2 particles and the matrix, so reduce the mechanical properties of the composite.

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“…Among various reinforced particles, TiB 2 particles are one of the promising candidates because of their high hardness, high modulus, and exceptional erosion resistance (Chen et al, 2009a;Liang et al, 2019;Fattahi et al, 2020;Senthil Kumar et al, 2020). The mechanical properties and strengthening mechanisms of TiB 2 /A356 composites have been studied by many researchers, and their reports indicate significant improvements in tensile properties (Chen et al, 2009b;Wang et al, 2014;Xue et al, 2020). Mandal et al (2008) investigated the aging response of the alloy when dispersed with TiB 2 particles and observed that different amounts of TiB 2 alter the particle size distribution of Si, which affects the mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Mechanical Properties of Aluminum Matrix Composites Reinforced With In-Situ TiB2 Particles

Zeng

Hao

et al. 2022

Front. Mater.

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The present article investigates the microstructure and mechanical properties of A356 matrix composite reinforced with TiB2 particles synthesized by the salt metal reaction of as-cast and T6 state. Microscopic observations of the prepared composites reveal that in-situ grown TiB2 particles are characterized with regular shapes and nearly uniform distributed in the A356 matrix. A clear interface between the A356 matrix and TiB2 particles was observed. The detailed analysis of mechanical properties of synthesized composites of as-cast and T6 state show that the ultimate tensile strength and Young’s modulus of the synthesized composites increased with the increasing weight percentage (wt%) of in-situ TiB2 particles in the A356 matrix, but the Poisson’s ratio of the synthesized composites decreased with the increase of TiB2 particles wt%. The Young’s modulus of the composites increased by up to 10.8% and the Poisson’s ratio decreased by up to 3.2% with the increase of TiB2 particles wt%, compared to A356 alloy. With the increase of TiB2 particle wt%, the yield strength of the composites decreased at first (when the TiB2 particle wt% is less than 1%) then increased, while elongation and percent reduction in area increased at first and then decreased. Furthermore, T6 heat treatment can refine grain and effectively improve the mechanical properties of composites.

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Study on the effect of CeO2 for fabricating in-situ TiB2/A356 composites with improved mechanical properties

Cited by 25 publications

References 34 publications

An Overview of the Interactions Between Reinforcements and Al Matrices with Si, Cu And Mg as Alloying Elements in Aluminum Matrix Composites: Case of Oxide Reinforcements

An Overview of the Interactions Between Reinforcements and Al Matrices with Si, Cu And Mg as Alloying Elements in Aluminum Matrix Composites: Case of Oxide Reinforcements

Effect of holding time and Ti/B molar ratio on microstructure and mechanical properties of in-situ TiB₂/Al composites fabricated by mixed salt reaction

Microstructure and Mechanical Properties of Aluminum Matrix Composites Reinforced With In-Situ TiB2 Particles

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Study on the effect of CeO2 for fabricating in-situ TiB2/A356 composites with improved mechanical properties

Cited by 25 publications

References 34 publications

An Overview of the Interactions Between Reinforcements and Al Matrices with Si, Cu And Mg as Alloying Elements in Aluminum Matrix Composites: Case of Oxide Reinforcements

An Overview of the Interactions Between Reinforcements and Al Matrices with Si, Cu And Mg as Alloying Elements in Aluminum Matrix Composites: Case of Oxide Reinforcements

Effect of holding time and Ti/B molar ratio on microstructure and mechanical properties of in-situ TiB2/Al composites fabricated by mixed salt reaction

Microstructure and Mechanical Properties of Aluminum Matrix Composites Reinforced With In-Situ TiB2 Particles

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Effect of holding time and Ti/B molar ratio on microstructure and mechanical properties of in-situ TiB₂/Al composites fabricated by mixed salt reaction