Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy

Liu, C.Y.; Zhang, B.; Ma, Z.Y.; Jiang, Haojie; Zhou, Wenbiao

doi:10.1016/j.jallcom.2018.09.109

Cited by 40 publications

(11 citation statements)

References 47 publications

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“…Incorporation of NiTi [151] and Sc [152] in aluminum alloy enhanced damping property of the material. Fabrication of the composite by FSP route generated some crystallographic defects like fine and mobile grain boundaries and dislocations which in turn introduced energy dissipation sources.…”

Section: Other Mechanical Propertiesmentioning

confidence: 99%

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Maji

Ghosh

Nath

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

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Aluminum matrix composites are widely used in aerospace, automotive industry and defense sector owing to its excellent weight-to-strength ratio. Friction stir processing has emerged as an excellent technique to produce particle reinforced as well as fiber reinforced aluminum matrix composites. This article is a state of the art of aluminum matrix composite fabrication by friction stir processing route. The fabrication procedure has been discussed with carefully mentioning the parameters associated with the process. Microstructures and consequent mechanical properties of the composites have been evaluated. Particular attention is given on the microstructural modification and strengthening mechanism. Also the wear and corrosion behavior of the composites has been discussed thoroughly. Finally, the article has been concluded with some suggestions toward future work.

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Section: Other Mechanical Propertiesmentioning

confidence: 99%

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Maji

Ghosh

Nath

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…The addition of Sc in 7055 aluminum alloy could cause grain boundary effect [5,6], effectively refine the grains, which had a good promoting effect on the hardness, tensile strength, ductility and thermal stability [7]. But its high cost was not conducive to large-scale industrial applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of SM+Er and Heat Treatment on As-Cast Microstructure and Mechanical Properties of 7055 Aluminum Alloy

Wang¹,

Li²

2023

Preprint

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The cast grains of the 7055 aluminum alloy were refined by adding Sm + Er, and the proper heat treatment procedure was utilized to further precipitate the rare earth phase in order to increase the alloy's strength and toughness. The grain size, microstructure and phase were characterized by optical microscopes (OM), Scanning electron microscopy - energy spectrum (SEM-EDS), XRD diffractometer (XRD). The macroscopic hardness, yield strength and tensile strength of alloy materials were measured by hardness meter and universal electronic tensile machine. The results shown that the as-cast sample and the heat treatment sample all exist Al10Cu7Sm2 and Al8Cu4Er rare earth phase; But after heat treatment, the volume percentage of the rare earth phase dramatically increased and the dispersion was more unified. When 0.3wt.%Sm and 0.1wt.%Er were added, the grain size could be refined to 53μm. With the increase of the total content of rare earth elements, the refining effect first increased and then decreased. Under 410 oC solid solution for 2h + 150oC aging for 12h, the macroscopic hardness, yield strength, tensile strength and elongation of 0.3wt.%Sm + 0.1wt.%Er+7055 as-cast sample were 155.8HV, 620.5Mpa, 658.1Mpa, and 11.90%, respectively.

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“…In other words, the improvement in damping capacity is accompanied with the expense of strength loss, which is often reported in some literatures [4,12]. However, the alloys with good mechanical properties and high damping capacity have been reported and some modified damping mechanisms have been developed in recent years [5,7,13]. Zhou et al have found that the as-aged ZK60 alloy exhibits the higher Q h −1 than the as-solutionised state and G.P.I.…”

Section: Introductionmentioning

confidence: 99%

Effects of Zn content on damping behaviours of Al–Mg alloys

Zhao

Yan

Chen

et al. 2021

Materials Science and Technology

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Effects of Zn content (0–1.5, in wt.%) on damping capacities of the as-homogenised and the hot-rolled Al–9.2Mg alloys are investigated. The Zn addition plays a significant role in the strain-amplitude-dependent damping ( Qh−1). As for the as-homogenised state, Qh−1 decreases at first and then increases with the higher Zn content, and the Al–9.2Mg–1.5Zn alloy exhibits the highest Qh−1 (>0.016). As for the hot-rolled state, Qh−1 is just the reverse and the Al–9.2Mg–0.5Zn alloy exhibits the highest Qh−1 (>0.018). The damping behaviours are in accord with the G–L dislocation theory, which are determined by stacking fault energy (SFE), textures and precipitates.

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Effect of Sc addition, friction stir processing, and T6 treatment on the damping and mechanical properties of 7055 Al alloy

Cited by 40 publications

References 47 publications

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Microstructural, mechanical and wear characteristics of aluminum matrix composites fabricated by friction stir processing

Effect of SM+Er and Heat Treatment on As-Cast Microstructure and Mechanical Properties of 7055 Aluminum Alloy

Effects of Zn content on damping behaviours of Al–Mg alloys

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