High strength and high creep resistant ZrB2/Al nanocomposites fabricated by ultrasonic-chemical in-situ reaction

Kai, Xizhou; Huang, Shuoming; Wu, Lin; Tao, Ran; Peng, Yanjie; Mao, Zemin; Chen, Fei; Li, Gui-Rong; Chen, Gang; Zhao, Yutao

doi:10.1016/j.jmst.2019.04.020

Cited by 42 publications

(6 citation statements)

References 38 publications

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“…Casting techniques such as stir casting, compo casting, squeeze casting and other modern techniques such as Rheo or vacuum die castings are more common techniques involving molten metal as medium [19,20]. However, the incorporation of oxide powders into molten metals lead to non-homogenous distribution, accumulation and cluster formation of the powders onto the surfaces [21]. To circumvent this common problem associated with stir casting techniques many researchers came up with different techniques such as impellers, stirrers and ultrasonication techniques prior to fabrication.…”

Section: Introductionmentioning

confidence: 99%

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Arunkumar

Pavanan²,

Murugesan³

et al. 2021

Met. Mater. Int.

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This study emphasis on a novel fabrication technique to fabricate hybrid cermets using Al 6061 alloy with nano sized SiC, Al2O3 and TiO2 as reinforcements. During the fabrication process, the melted pool was ultrasonicated to disperse nanoparticles at 20 kHz for 5 min and pressure of 50 MPa was applied to eliminate voids. The influence of nanoparticles on physical, thermal and mechanical properties were evaluated by tensile, wear and thermal studies. Cermets with Al2O3 reinforcements showed higher mechanical performance compared to Al alloy. This enhancement could be related to the uniform distribution of Al2O3 with refinement in grain size of Al alloy which was observed via surface analysis. The morphological studies provided justifiable evidence of homogeneous distribution, nominal cluster along with agglomeration and cavities shrinking on the cermets. The agglomeration of nanoparticles along with SiC protected the cermet in corrosion and abrasive wear by ~ 97% and ~ 71%. The study evidenced the novel fabrication method using ultrasonic rheo-squeeze casting led to improvement in mechanical and thermal properties of the hybrid cermets. Graphical abstract

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Section: Introductionmentioning

confidence: 99%

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Arunkumar

Pavanan²,

Murugesan³

et al. 2021

Met. Mater. Int.

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“…However, it should be noted that the composite can still maintain a relatively high UTS, e.g., 154 MPa at 350 °C and 104 MPa at 450 °C. It is also necessary to mention that the (ZrB2 + Al3BC + Al2O3)/Al composite has quite attractive comprehensive properties, when compared with our previous work and other composites [27][28][29][30]. Table 2 has listed the tensile properties of several composites which are reinforced with single particle or two kinds of particles.…”

Section: Resultsmentioning

confidence: 94%

Synthesis of an Al-Based Composite Reinforced by Multi-Phase ZrB2, Al3BC and Al2O3 with Good Mechanical and Thermal Properties at Elevated Temperature

et al. 2020

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To synthesize Al composite with high strength at elevated temperature, high modulus and thermal stability, ZrB2, Al3BC and Al2O3 particles have been chosen as reinforcements simultaneously. A (9.2 wt.% ZrB2 + 5.6 wt.% Al3BC + 5.5 wt.% Al2O3)/Al composite has been prepared, and the in-situ synthesized particles are nano-sized. Mechanical property tests reveal that the nanoparticles exhibit a remarkable synergistic enhancement effect. The elasticity modulus of the composite is 89 GPa, and the ultimate tensile strengths at 25 °C and 350 °C can be as high as 371 MPa and 154 MPa, respectively.

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“…Kai et al (2021) studied the effects of Zr on the microstructure and mechanical properties of B 4 C/Al composites and pointed out that the addition of Zr could promote the wettability of the composite as well as the uniform distribution of the particles. To improve the dispersity of in situ particles in the matrix effectively, some external physical fields, such as electromagnetic and ultrasonic fields, were used during the preparation of the in-situ particle reinforced aluminum composites (Kai et al, 2016;Kai et al, 2019).…”

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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High strength and high creep resistant ZrB2/Al nanocomposites fabricated by ultrasonic-chemical in-situ reaction

Cited by 42 publications

References 38 publications

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Influence of Nanoparticles Reinforcements on Aluminium 6061 Alloys Fabricated via Novel Ultrasonic Aided Rheo-Squeeze Casting Method

Synthesis of an Al-Based Composite Reinforced by Multi-Phase ZrB2, Al3BC and Al2O3 with Good Mechanical and Thermal Properties at Elevated Temperature

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

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