Enhanced strength-ductility synergy in a boron carbide reinforced aluminum matrix composite at 77 K

Gao, Minqiang; Kang, Huijun; Chen, Zongning; Guo, Enyu; Fu, Ying; Xu, Yanjin; Wang, Tongmin

doi:10.1016/j.jallcom.2019.153310

Cited by 26 publications

(7 citation statements)

References 39 publications

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“…Since the density of the Si 3 N 4 is comparatively higher with 3.44 g/cm 3 when compared to other reinforcements, it has a greater influence on the density of the hybrid composites. e AA7075 base alloy showed the experimental and theoretical density of 2.80 g/cm 3 and 2.81 g/ cm 3 , respectively, and porosity of 0.3559%. When ceramic reinforcement particulates were mixed with AA7075 base alloy (2.80 g/cm 3 ), the developed composite showed higher density with a reasonable amount of porosity.…”

Section: Density and Porosity Analysis Of Aa7075/tac/ti/si 3 N 4 Hybr...mentioning

confidence: 94%

“…ese hard ceramic materials gain importance in turbine and aircraft industries and their components such as turbine blades, rivets, and aircraft outer components that are exposed to elevated atmospheric conditions [2]. Lightweight aluminium metal matrix composites (MMCs) are of immense attention in the present situation as a consequence of their high-level electrical, thermal, and mechanical aspects [3]. Properties such as exceptional toughness, higher sti ness and strength, low speci c gravity and coe cient of thermal expansion, good wear and corrosion inheritance, high thermal conductivity, and high dimensional accuracy shifted the research from monolithic material to the composites [4].…”

Section: Introductionmentioning

confidence: 99%

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Effect of TaC/Ti/Si3N4 Hard Ceramics on Mechanical and Microstructural Behaviour of AA7075 Processed through Stir Casting Process

Kumar

Smart

Manova

et al. 2022

Advances in Materials Science and Engineering

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A liquid metallurgical stir casting route was utilized for developing aluminium alloy (7075) matrix composites blended with fluctuating wt% of silicon nitride (Si3N4), tantalum carbide (TaC), and titanium (Ti) for sake of generating a profitable composite with enhanced properties. The physical, microstructural, and mechanical characteristics such as density, high temperature tensile, fatigue, and time-dependent creep experiments were conducted and evaluated. SEM microstructural examinations were performed on the composite samples and proved that there was a good interfacial bonding and uniform dissemination among the reinforcement particulates in the matrix. Physical characteristics were analysed and the outcomes showed that AA7075 blended with 1 wt% TaC, 8 wt% Si3N4, and 0.5 wt% Ti proved higher experimental and theoretical densities of 3.2464 g/cm3 and 3.3038 g/cm3, respectively, with maximum porosity of 1.7758%. At 30°C, the tensile properties of the developed MMCs showed improved ultimate tensile strength (UTS) of 137.64 N/mm2. Beyond 100°C, AA7075 reinforced with 0.75 wt% TaC, 6 wt% Si3N4, and 1 wt% Ti proved to have a higher strength of 232.17 N/mm2. Fatigue properties of the developed MMCs discovered were found to be reformed when proportionate to the base alloy by operating at 14 × 103 cycles at the stress of 42.72 MPa. Time-dependent creep analysis of the developed MMCs found to be advanced due to the addition of tough ceramic particulates.

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Section: Density and Porosity Analysis Of Aa7075/tac/ti/si 3 N 4 Hybr...mentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

Effect of TaC/Ti/Si3N4 Hard Ceramics on Mechanical and Microstructural Behaviour of AA7075 Processed through Stir Casting Process

Kumar

Smart

Manova

et al. 2022

Advances in Materials Science and Engineering

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“…It demonstrates signicant application potential in the aerospace and civil sectors. [16][17][18] Aerogels are primarily prepared using the sol-gel method. First, a suitable solvent is chosen as the pore-forming agent.…”

Section: Introductionmentioning

confidence: 99%

Preparation of anisotropic polyimide aerogels for thermal protection with outstanding flexible resilience using the freeze-drying method

Xu,

Liang,

et al. 2024

RSC Adv.

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“…This could be solved by introducing the reinforcement particles in AA8090 alloy. Generally, reinforcement particles such as metal oxide, carbide, boron and graphite are used in aluminum alloys (Khoshghadam-Pireyousefan et al , 2020; Kumar Bhoi et al , 2020; Gao et al , 2020). Harti et al (2021) studied the performance of TiC particles reinforced Al2219 alloy and reported that the addition of 4 wt% TiC increased the hardness and compressive strength of Al2219 alloy.…”

Section: Introductionmentioning

confidence: 99%

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

A¹,

S²,

Gunasekaran³

et al. 2021

ILT

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Purpose Aerospace field is demanding a material with superior strength and high resistance against wear, tear and corrosion. The current study aimed to develop a new material with high performance to be applicable in aerospace field Design/methodology/approach A metal matrix composite AA8090-WC-ZrC was fabricated using stir casting method and its tribological behavior was investigated. Totally, five composites viz. AA/Z, AA/W, AA/WZ (1:3), AA/WZ (1:1) & AA/WZ (3:1) were prepared. Micro hardness, tensile and wear study were performed on the fabricated composites and the results were compared with AA8090 alloy Findings Vickers hardness test resulted that the AA/W composite showed the higher hardness value of 160 HB compared to other materials due to the reinforcing effect of WC particles with high hardness. Tensile test reported that the AA/W composite displayed the maximum tensile strength of 502 MPa owing to the creation of more dislocation density. Further, wear study showed that the AA/W composite exhibited the least wear rate of 0.0011 mm3/m because of the more resisting force offered by the WC particles. Furthermore, the AA/W composite showed the slightest mass loss of 0.0028 g and lower COF value of 0.31 due to the hinder effect of WC particle to the movement of atoms in AA8090 alloy Originality/value This work is original in the field of aerospace engineering and materials science which deals with the fabrication of AA8090 alloy with the reinforcement particles such as tungsten carbide and zirconium carbide. The impact of the combination of hybrid particles and their volume fractions on the tribological properties has been investigated in this work. This work would provide new scientific information to society.

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Enhanced strength-ductility synergy in a boron carbide reinforced aluminum matrix composite at 77 K

Cited by 26 publications

References 39 publications

Effect of TaC/Ti/Si3N4 Hard Ceramics on Mechanical and Microstructural Behaviour of AA7075 Processed through Stir Casting Process

Effect of TaC/Ti/Si3N4 Hard Ceramics on Mechanical and Microstructural Behaviour of AA7075 Processed through Stir Casting Process

Preparation of anisotropic polyimide aerogels for thermal protection with outstanding flexible resilience using the freeze-drying method

Tribological characteristics of AA8090-WC-ZrC metal matrix composites prepared by stir casting process for Aerospace applications

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