Effect of ageing temperature on the corrosion behaviour of UHTC particulates reinforced magnesium composites fabricated through ultrasonic assisted squeeze casting process

Gnanavelbabu, A.; Surendran, K.; Loganathan, P.; Vinothkumar, E.

doi:10.1016/j.jallcom.2020.158173

Cited by 33 publications

(15 citation statements)

References 32 publications

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“…On the other hand, the hardness of 21 GPa and the modulus of 251 GPa of TiN particles caused relatively less hardness of ATN. 7 This is also consistent with ATN's lower porosity. The hardness of ATC was moderate.…”

Section: Resultssupporting

confidence: 74%

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Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Surendran

Gnanavelbabu

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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In this research work, the tribological behaviour of an AZ91D alloy and its composites reinforced with different titanium-based ultra-high-temperature ceramic particulates was investigated. Titanium-based ultra-high-temperature ceramic materials (5 wt%) such as titanium carbide, titanium boride and titanium nitride was used for the fabrication of three different composites, namely ATC, ATB and ATN, respectively. The proposed composites were prepared using a novel ultrasonic treatment-assisted stir-squeeze casting technique. Material characterization was performed using scanning electron microscopy and X-ray diffraction techniques. The porosity and hardness of the composites were determined prior to the wear test. In the pin-on-disc tribometer, the wear test was carried out at room temperature by varying the normal load (12.5–50 N) and the sliding speed (0.25–1 m/s). In addition, at a temperature of up to 200 °C, the tribological behaviour of the composites was assessed. The homogeneous distribution of ultra-high-temperature ceramic particles in the matrix was confirmed by the analysis of the microstructure using scanning electron microscopy images. The X-ray diffraction results showed that the reinforcement materials in the matrix were thermally stable. The hardness of the ATC, ATB and ATN was improved by approximately 31%, 33.8% and 29.6%, respectively. In comparison, at all wear testing conditions, ATB demonstrated superior tribological performance, while the performance of ATN was poor and ATC was moderate. Abrasion, oxidation and delamination were the wear mechanisms at room temperature. At elevated temperatures, oxidation, delamination, thermal softening and plastic deformation wear mechanisms were significant..

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Section: Resultssupporting

confidence: 74%

“…Titanium-based compounds such as titanium carbide (TiC), titanium boride (TiB 2 ) and titanium nitride (TiN) have low density, high hardness and outstanding thermal properties among many UHTC materials. 7…”

Section: Introductionmentioning

confidence: 99%

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Surendran

Gnanavelbabu

2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…The authors emphasize that the above-mentioned intriguing combination of metal-like and ceramic-like properties allows UHTCs to survive extreme temperatures, heat fluxes, radiation levels, mechanical loads, chemical reactivities, and other conditions that are beyond the capabilities of existing structural materials (Fahrenholtz and Hilmas, 2017). Gnanavelbabu et al (2021) note that by adding ceramic reinforcements, it is possible to enhance corrosion resistance of a magnesium alloy and concentrate on UHTC reinforcements. They analyze Mg-AZ91D matrix composites reinforced with 5 wt% of TaC, HfC, TiN, TiB2, and TiC particles.…”

Section: High Temperature Coatingsmentioning

confidence: 99%

Remanufacturing and Advanced Machining Processes for New Materials and Components

Gevorkyan¹,

Rucki²,

Nerubatskyi³

et al. 2022

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Reasonable efforts have been made to publish reliable data and information, but the author and publisher cannot assume responsibility for the validity of all materials or the consequences of their use. The authors and publishers have attempted to trace the copyright holders of all material reproduced in this publication and apologize to copyright holders if permission to publish in this form has not been obtained. If any copyright material has not been acknowledged please write and let us know so we may rectify in any future reprint.The Open Access version of this book, available at www.taylorfrancis.com, has been made available under a Creative Commons Attribution-Non Commercial-No Derivatives 4.0 license.

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“…UHTCs mainly include the carbides and borides of Hf, Ta, Ti, and Zr elements, which possess high melting points 16–18 . Among them, hafnium carbide (HfC) possesses the highest melting point, good ablation resistance, and phase stability 19–22 .…”

Section: Introductionmentioning

confidence: 99%

“…[13][14][15] UHTCs mainly include the carbides and borides of Hf, Ta, Ti, and Zr elements, which possess high melting points. [16][17][18] Among them, hafnium carbide (HfC) possesses the highest melting point, good ablation resistance, and phase stability. [19][20][21][22] Meanwhile, HfO 2 , the oxidation product of HfC, not only possesses a high melting point but also exhibits low saturated vapor pressure at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

Hou

Wei²,

Yang³

et al. 2022

Int J Applied Ceramic Tech

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The slurry and sol‐gel methods were used to introduce SiC nanowires (SiCnws) into the SiCf/HfC‐SiC composites. The microstructures, ablation, and bending behaviors of the SiCnws modified composites prepared by the two methods were compared. The bending strengths of the modified composites obtained by introducing SiCnws by the slurry and sol‐gel methods were 224 ± 19 and 154 ± 14 MPa, respectively. The results showed that SiC fibers with chemical corrosion and thermal damage during the sol‐gel process decreased the bending strength of the SiCnws‐modified SiCf/HfC‐SiC composites. Meanwhile, the pyrolytic carbon interface accompanying corrosion damage in the sol‐gel process led to the degradation of interface function, which hindered the interface debonding and fiber sliding of the composites during the bending test. After ablation, the bending strengths of the two composites were 188 ± 19 and 50 ± 7 MPa, respectively. The bending strength retention of the modified composites fabricated by the slurry method (83.9%) was higher than that (32.5%) of the composites fabricated by the sol‐gel method after ablation. As the composites fabricated by the slurry method exhibited a good ablation resistance under the oxyacetylene flame (∼2350°C).

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Effect of ageing temperature on the corrosion behaviour of UHTC particulates reinforced magnesium composites fabricated through ultrasonic assisted squeeze casting process

Cited by 33 publications

References 32 publications

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Remanufacturing and Advanced Machining Processes for New Materials and Components

Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites

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Effect of ageing temperature on the corrosion behaviour of UHTC particulates reinforced magnesium composites fabricated through ultrasonic assisted squeeze casting process

Cited by 33 publications

References 32 publications

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Tribological behaviour of AZ91D/ultra-high-temperature ceramic composites at room and elevated temperatures

Remanufacturing and Advanced Machining Processes for New Materials and Components

Effect of slurry and sol‐gel introduce SiCnws on ablation and bending behaviors of modified SiCf/HfC‐SiC composites

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Effect of slurry and sol‐gel introduce SiC_nws on ablation and bending behaviors of modified SiC_f/HfC‐SiC composites