Enhancing mechanical properties and corrosion performance of AA6063 aluminum alloys through constrained groove pressing technique

Fan, Ren-jie; Attarilar, Shokouh; Shamsborhan, Mahmoud; Ebrahimi, Mahmoud; Göde, Ceren; Özkavak, Hatice Varol

doi:10.1016/s1003-6326(20)65339-0

Cited by 26 publications

(5 citation statements)

References 57 publications

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“…The chemical compositions of this alloy are listed in Table 1, which has been obtained by the optical emission spectroscopy (OES) technique. The mentioned material was annealed at 380 • C for 2 h (according to our previous results [16,21]) and then cooled slowly at the furnace down to room temperature resulting in the most homogeneous equiaxed structure with a mean grain size of ~23 µm that is free of residual stresses. Afterward, the CEC process was performed up to four passes at ambient temperature on the cylindrical shape aluminum samples with a diameter and length of 20 mm and 110 mm, respectively.…”

Section: Methodsmentioning

confidence: 99%

“…Until now, numerous SPD methods have been proposed, introduced, and experimented on various materials with different shapes of bulk, sheet, tube, and even wire [12][13][14][15]. The most commonly used are equal channel angular pressing [16], high-pressure torsion [17], multidirectional forging [18], equal channel forward extrusion [19], friction stir processing [20], constrained groove pressing [21], accumulative roll bonding [22], planar twist extrusion [23], planar twist channel angular extrusion [24], and cyclic extrusion compression [25].…”

Section: Introductionmentioning

confidence: 99%

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Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Djavanroodi

Shamsborhan

et al. 2022

Metals

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Background The severe plastic deformation approach and its well-known cyclic extrusion compression (CEC) method have been established as a powerful tool for fabricating bulk ultrafine-grained metals and alloys with improved properties. Objective This study focused on the microstructure evolution, hardness behavior, and corrosion properties of the CEC-processed Al5052 up to four passes compared to the initial annealed state. Methods The initial and CEC-processed Al5052 samples at different pass numbers were examined experimentally by EBSD analyses, hardness measurements, and corrosion resistance. Results Substantial grain refinement was attained from 23 µm for the annealed sample to 0.8 µm in the four passes sample. In addition, the hardness values considerably increased up to 75.7% after four passes from the initial value of 80 HV. In addition, the increment of pass numbers led to a more uniform dispersion of hardness values. Furthermore, the production of more stable protective oxide layers on the UFG structure of the CEC-processed sample led to the improvement in electrochemical response with a corrosion rate reduction from 1.49 to 1.02 mpy, respectively, in the annealed and final pass CEC-processed samples. In fact, the annealed sample manifested more large-sized and deeper pits than the CECed samples due to the increment of potential values and electrochemical attack of chlorine ions that finally deteriorates the corrosion performance. Conclusions CEC is an efficient method to improve the mechanical properties of materials due to substantial microstructural changes along with enhancement of electrochemical behavior because of the presence of small-sized and shallow pits.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Djavanroodi

Shamsborhan

et al. 2022

Metals

Self Cite

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“…Other issues with AM products are related to their corrosion and wear performance, or in other words their tribocorrosion behavior, that is induced by the tribological and electrochemical variation of the material due to the presence of voids, pores, molten pool boundaries, surface roughness, and anisotropy. These properties are of crucial importance in the biomedical field since the low wear and corrosion performance may lead to the release of toxic/allergic elements and particles in the periphery of the implant, bacterial inflammation, and finally the loosening and failure of the implant that necessitates second surgeries, incurring a low quality of life and economic costs for patients [26][27][28][29][30][31][32][33]. It has been established that additive manufacturing can significantly change the electrochemical and tribological responses of materials.…”

Section: Introductionmentioning

confidence: 99%

Corrosion and Wear Behavior of Additively Manufactured Metallic Parts in Biomedical Applications

Wei,

Attarilar,

Ebrahimi

et al. 2024

Metals

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Today, parts made by additive manufacturing (AM) methods have found many applications in the medical industry, the main reasons for which are the ability to custom design and manufacture complex structures, their short production cycle, their ease of utilization, and on-site fabrication, leading to the fabrication of next-generation intricate patient-specific biomedical implants. These parts should fulfill numerous requirements, such as having acceptable mechanical strength, biocompatibility, satisfactory surface characteristics, and excellent corrosion and wear performance. It was known that AM techniques may lead to some uncertainties influencing part properties and causing significant evaluation conflicts in corrosion outcomes. Meanwhile, the corrosion and wear behavior of additively manufactured materials are not comprehensively discussed. In this regard, the present work is a review of the state-of-the-art knowledge dedicated to reviewing the actual scientific knowledge about the corrosion and wear response of additively manufactured biomedical components, elucidating the relevant mechanism and influential factors to enhance the performance of AM-manufactured implants specifically for the physiological human body fluids. Furthermore, there is a focus on the use of reinforced composites, surface engineering, and a preparation stage that can considerably affect the tribocorrosion behavior of AM-produced parts. The improvement of tribocorrosion performance can have a key role in the production of advanced AM implants and the present study can pave the way toward facile production of high-throughput AM biomedical parts that have very high resistance to corrosion and wear.

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“…21,22 Two of the most successful are high-pressure torsion (HPT) and equal channel angular pressing (ECAP). 13,23 Other methods include multi-directional forging, 19 accumulative roll bonding, 24 equal channel forward extrusion, 12 constrained groove pressing, 25 twist extrusion, 26 planar twist channel angular extrusion, 27 etc. The HPT process provides UFG/NS metals and alloys, by which a thin disc-shaped specimen under high hydrostatic pressure is subjected to torsional straining.…”

Section: Introductionmentioning

confidence: 99%

Machinability of pure copper before and after processing by severe plastic deformation method

Özkavak

Göde

2022

Proceedings of the Institution of Mechanical Engineers, Part B:

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For using ultrafine-grained metals and alloys in industry, further machining sequences and studying their possible effects are necessary to attain these products in their ultimate dimensions. In this work, the machinability of ultrafine-grained pure copper and the corresponding coarse-grained counterpart investigated systematically. The results showed that the processed copper could be machined as efficiently as its initial one. Also, the machining of the Cu sample with the polycrystalline diamond tools requires much less force than tungsten carbide tools. The produced cutting forces were smaller for the processed copper as compared to the initial copper. Also, similar tool wear mechanisms were detectable for the copper specimen before and after the process. Chip morphology altered less through the machining, and the surface quality enhanced during machining the ultrafine-grained copper. Eventually, the polycrystalline diamond tool increased the surface roughness of initial and processed specimens since it caused less than 50% roughness compared to the tungsten carbide tool.

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Enhancing mechanical properties and corrosion performance of AA6063 aluminum alloys through constrained groove pressing technique

Cited by 26 publications

References 57 publications

Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Improving Mechanical and Corrosion Behavior of 5052 Aluminum Alloy Processed by Cyclic Extrusion Compression

Corrosion and Wear Behavior of Additively Manufactured Metallic Parts in Biomedical Applications

Machinability of pure copper before and after processing by severe plastic deformation method

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