Mechanical study of Al 7050 and Al 7075 based metal matrix composites: A review

Singh, Kapil; Singh, Hartaj; Vardhan, Sachit; Mohan, Sanjay

doi:10.1016/j.matpr.2020.12.601

Cited by 18 publications

(4 citation statements)

References 32 publications

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“…Currently, 7050 Al alloy has been reported to have a maximum strength of 711 MPa. [ 1 ] With the rapid development of additive manufacturing technology, the additively manufactured 7050 Al alloy has attracted wide attention, especially in line with the requirements of extreme lightweight, individual, and rapid manufacturing for aerospace components. It is reported that the additively manufactured 7050 Al alloy components has been partially applied in the aerospace field.…”

Section: Introductionmentioning

confidence: 99%

Effect of Hot Deformation on Microstructure and Porosity of Additively Manufactured 7050 Al Alloy

Su,

Shao,

Liu

et al. 2024

Adv Eng Mater

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Wire arc additive manufacturing technology of 7050 aluminum alloy has a broad application prospect in aerospace field. But the lack of comprehensive properties caused by coarse columnar grains and pores has become an important bottleneck. In this study, hot compression was conducted to simulate forging process to investigate the microstructure improvement of as‐deposited 7050 Al alloy by plastic deformation. And the effect of temperature at 390∽540 °C and deformation at 20∽60 % on the microstructure and porosity was revealed. The results show that only slip deformation occurred at 420 °C and below. Local dynamic recrystallization occurred at the columnar grain boundaries at 450 °C. Complete dynamic recrystallization occurred at 480 °C with the average grain size of about 60 μm. The microstructure overburned at 510 °C and above. The η eutectic phases were broken during deformation. The hot deformation accelerated the dissolution of η eutectic phases and the dissolution temperature of nano‐phases was 30 °C lower than solid‐solution. As the deformation amount increased from 20 % to 60 %, the deformation gradually extended from interlayer to inner of columnar grain layers. The spherical pores were first compressed to ellipsoid and then further compressed until completely closed. The pores were significantly closed at 40 % deformation, and were basically annihilated completely at 60 % deformation.This article is protected by copyright. All rights reserved.

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Section: Introductionmentioning

confidence: 99%

Effect of Hot Deformation on Microstructure and Porosity of Additively Manufactured 7050 Al Alloy

Su,

Shao,

Liu

et al. 2024

Adv Eng Mater

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“…Developing aluminum matrix composites is a widely used method to improve mechanical properties. The composites are commonly reinforced with hard materials including carbon materials, carbides, and ceramic particles (nitride ceramics, oxide ceramics, and TiB 2 ) [ [4] , [5] , [6] ]. Compared with the other reinforcements, TiB 2 particle is preferred due to its high hardness, good thermodynamic stability, corrosion resistance, and chemical stability at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and molten pool morphology of TiB2/ AlSi7Mg composites fabricated by infrared-blue hybrid laser powder bed fusion

Wu,

Yang,

et al. 2024

Heliyon

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“…Zinc is the major alloying element in aluminium 7075. It is a high-strength aluminium alloy commonly used in high-stress structural applications [21]. There are different production methods for nanohybrid metal matrix composites; among them, stir casting seems to be more promising due to its vast range and mass production capabilities.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effect of graphene nanoplatelets and titanium dioxide nanopowder-reinforced aluminium nanohybrid composites on mechanical properties

Chaurasia,

Sarangi

2024

Funct. Compos. Struct.

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Due to their effectiveness, lightweight materials have gained international attention in recent decades, with industrial sectors being the primary users of them. Metal matrix composites with nanohybrid reinforcement are a unique composite system combination that enhances the material’s mechanical qualities. In the present article, the mechanical properties of graphene nanoplatelets (GNP) and titanium dioxide (TiO2)-reinforced aluminium 7075 alloy are discussed with varying weight percentages of reinforcements prepared by the stir casting technique. 1 wt.% GNP with and 3 wt.% TiO2-reinforced composites show optimum properties within the range of reinforcement studied, with a 71.9% increment in tensile strength and an 86.6% improvement in microhardness observed; however, elongation is decreased by 31.7% in contrast to the base alloy. Maximum toughness is found to be in 0.5 wt.% GNP with 1 wt.% TiO2-reinforced nanohybrid composites. XRD results show phase analysis. SEM analysis of the fractured surface reveals a mixture of ductile and brittle fractures.

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Mechanical study of Al 7050 and Al 7075 based metal matrix composites: A review

Cited by 18 publications

References 32 publications

Effect of Hot Deformation on Microstructure and Porosity of Additively Manufactured 7050 Al Alloy

Effect of Hot Deformation on Microstructure and Porosity of Additively Manufactured 7050 Al Alloy

Microstructure and molten pool morphology of TiB2/ AlSi7Mg composites fabricated by infrared-blue hybrid laser powder bed fusion

Synergistic effect of graphene nanoplatelets and titanium dioxide nanopowder-reinforced aluminium nanohybrid composites on mechanical properties

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