Fabrication of Nano-Composite Surface Layers on Aluminium Employing Friction Stir Processing Technique

Kashani-Bozorg, Seyed Farshid; Shafiei-Zarghani, Aziz; Zarei-Hanzaki, A.; Rusop, M.; Subban, Rihanum Yahaya; Kamarulzaman, Norlıda; Wui, Wong Tin

doi:10.1063/1.3377864

Cited by 4 publications

(3 citation statements)

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“…Figure 6 also shows that the highest hardness point in the hardness profiles were not always reached at the nugget zone. Previous work [6] has reported grain refining of the matrix, as well coarsening and dissolution of the strengthening precipitates during the thermal cycle of the FSP. It has also been reported that the Al2O3 particles restrict grain boundary migration during FSP.…”

Section: Vickers Hardnessmentioning

confidence: 99%

“…The process has been also applied to the manufacture of surface composites by incorporating nano-sized alumina into AA6082 aluminium alloy and for the uniform distribution of SiC particles into a surface layer of A1050-H24 alloy [5,6]. The new surfaces showed defect free interfaces and the perfect bonding between the substrate and the surface composite.…”

Section: Introductionmentioning

confidence: 99%

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The Effect of Aging Treatment on the Friction-Stirprocessed Aa7075 Alloy With and Without Surface Nano-Dispersion

Refat¹,

Elashery²,

Ahmed³

et al. 2016

The International Conference on Applied Mechanics and Mechanica

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Friction stir processing (FSP) is a novel processing technique that is gaining wide recognition for manufacturing nano-dispersed surfaces, which are of high specific strength, hardness, and resistance to wear and corrosion. Herein, four-passes FSP were applied on aluminum alloy 7075 (AA7075) O with and without the addition of alumina nanoparticles (Al2O3) of average size ~40nm. All FSP parameters were constant at 40mm/min transverse speed, 500rpm and tilt angle of 3 . FSP rotation direction was reversed every two passes. The friction stir processed materials were sectioned and solution treated at 515 0 C for 1.5hrs, followed by age hardening at 120 C for 12,24,46,48 and 60hrs. The effect of heat treatment regimes on microstructure, hardness and toughness was examined, as well as the fracture mode. The new friction-stir processed surfaces without and with nanodispersion showed enhancement in the hardness of the surface of the AA7075-O material (65 HV) to almost a double (100 and 140 HV) after 4 passes FSP without and with incorporating nano-alumina particles, respectively. After 48hrs aging at 120 0 C a significant enhancement in impact toughness was achieved for both the friction stir processed without and with nanodispersion (181 and 134J, respectively), compared to the reference material AA7075 in T6 condition (104J).

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Section: Vickers Hardnessmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Effect of Aging Treatment on the Friction-Stirprocessed Aa7075 Alloy With and Without Surface Nano-Dispersion

Refat¹,

Elashery²,

Ahmed³

et al. 2016

The International Conference on Applied Mechanics and Mechanica

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show abstract

“…FSP has been used recently for the development of MMCs in a number of metallic alloys [14][15][16] for example Bozorg et al [14] used FSP to incorporate nano alumina in AA6082. Mahmoud et al [15] used FSP has examined the effects of tool probe shape and size on the formation of surface composite by uniformly distributing SiC particles into a surface layer of an A1050-H24.…”

Section: Introductionmentioning

confidence: 99%

Manufacturing of Nano-Surface Composites on AA7075 Using Friction Stir Processing for Military Vehicle and Transportation Applications

Refat

Ahmed

El-Mahallawi

2013

International Conference on Aerospace Sciences and Aviation Tec

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Friction stir processing (FSP) is solid state process that has been used recently for microstructural modification and surface composite development. In this study FSP has been used to incorporate Al 2 O 3 nanoparticles on the surface of AA7075 with the aim of manufacturing low density high hardness surface nanocomposites for military vehicles and transportation applications. The Al 2 O 3 nanoparticles were packed into grooves of 1mm width and 7.5mm depth that were machined in 15mm thick plates of AA7075. The FSP was done using FSP tool of cylindrical probe of 6mm diameter and 20mm diameter shoulder. The tool rotation rate and tool travel speed were selected based on available literature to produce uniform dispersion of Al 2 O 3 nanoparticles. The effect of post processing heat treatment after incorporating Al 2 O 3 nanoparticles into different temper conditions of AA7075-T6 and AA7075-O was investigated. The developed nanocomposites were investigated and characterized using optical microscopy, scanning electron microscopy, and hardness testing.

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A comprehensive detail of friction stir processing—with a case of fabrication of nanocomposites

Kumar

Sankaranarayanan²,

Velu³

et al. 2021

Advanced Welding and Deforming

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Fabrication of Nano-Composite Surface Layers on Aluminium Employing Friction Stir Processing Technique

Cited by 4 publications

References 0 publications

The Effect of Aging Treatment on the Friction-Stirprocessed Aa7075 Alloy With and Without Surface Nano-Dispersion

The Effect of Aging Treatment on the Friction-Stirprocessed Aa7075 Alloy With and Without Surface Nano-Dispersion

Manufacturing of Nano-Surface Composites on AA7075 Using Friction Stir Processing for Military Vehicle and Transportation Applications

A comprehensive detail of friction stir processing—with a case of fabrication of nanocomposites

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