Analysis of twin-roll casting AA8079 alloy 6.35-μm foil rolling process

Can, Ahmet; Arıkan, Hüseyin; Çinar, Kadir

doi:10.17222/mit.2015.134

Cited by 6 publications

(5 citation statements)

References 15 publications

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“…The interplaner spacings (d hkl ) in the crystal structures of PP, PP/PET, and PP/PET/Al laminates were calculated (Table ) from their XRD patterns (Figures ) using Bragg's law as reported by Petrova et al (). The experimental d hkl values were compared with the corresponding values for neat polymer components; for example, data of PP experimental vs PP literature , PP/PET experimental vs. PP literature ‐PET literature , and PP/PET/Al experimental vs. PP literature ‐PET literature ‐Al foil literature (Besco et al, ; Can, Arikan, & Çýnar, ; Demirel, Yara', & Elçiçek, ). The results indicate that there was no significant alteration in d hkl values of PP/PET and PP/PET/Al laminates compared to those of pure PET and Al foil.…”

Section: Resultsmentioning

confidence: 99%

“…In Figure , seven peaks at 2θ = 22, 25, 27, 36, 45, 65, and 78° were found in the diffractogram of PP/PET/Al laminate. Of these, four peaks (2θ = 25°, 45°, 65° and 78°) were characteristic of Al foil (Can et al, ), while among the remaining three peaks, two (2θ = 27 and 36°) peaks reflected the presence of PET in the trilamellate and the peak at 22° indicated the presence of PP in the same. However, no diffractogram characteristic to the crystal structure of the aforesaid laminates viz.…”

Section: Resultsmentioning

confidence: 99%

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Polypropylene-based packaging materials for shelf-life enhancement of yellow corn (Zea mays) kernels: Effects on lutein, aflatoxin content, sensory, and nutritional profiles

Pal

Bhattacharjee

2018

J Food Process Preserv

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Yellow corn (Zea mays) kernels were packaged in unilamellar polypropylene (PP), bilamellar PP/PET (polyethylene terephthalate), and trilamellar PP/PET/Al (aluminium foil) composite and stored at ambient conditions (23 ± 2 °C, 80% RH) for the extension of their shelf‐lives. Lutein content, aflatoxin content, sensory, physicochemical, phytochemical, and nutritional properties were adjudged. X‐ray diffraction, thermogravimetric‐differential thermal analyses, differential scanning calorimetry, and percentage opacity of the three packaging composites revealed that among the three combinations investigated, PP/PET/Al composite possessed highest crystallinity, thermal stability, and percentage opacity, thereby exhibiting improved barrier properties against moisture, gas, and light. These attributes led to enhanced carotenogenesis and minimal aflatoxin content, conferring highest shelf‐life of 90 days to the trilamellate packaged corn kernels, compared to PP‐ and PP/PET‐packaged samples (60 days). Sensory, physicochemical, phytochemical, and nutritional profiles were also best retained in the same compared to PP‐ and PP/PET‐packaged and control corn grits. Practical applications Corn is one of the major cereal crops consumed worldwide. Besides its nutritive value, it is also a good source of the nutraceutical “lutein.” Therefore, to meet the demand of the food processing industries and consumers, the grains must be preserved well. The current approach of application of non‐thermal preservation technology viz. “packaging” (using commercially viable, flexible packaging materials) could well preserve lutein as well as sensory attributes, phytochemical properties and nutritional constituents of the corn grits, when stored at ambient conditions (23 ± 2 °C, 80% RH).

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Polypropylene-based packaging materials for shelf-life enhancement of yellow corn (Zea mays) kernels: Effects on lutein, aflatoxin content, sensory, and nutritional profiles

Pal

Bhattacharjee

2018

J Food Process Preserv

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“…Al alloy is an Al-Fe alloy. Fe and Si are the main components, and Mn, Cu, Zn, Ti, and other elements are added appropriately according to different needs [1] . Because of its advantages, 8xxx Al alloys are widely used in household food packaging, pharmaceutical packaging, air conditioning radiator fins, etc.…”

Section: Introduction 8xxxmentioning

confidence: 99%

Electropolishing Behavior of 8xxx Al Alloy in Perchloric Acid and Ethanol Solution

Zhang

Zhong

2023

J. Phys.: Conf. Ser.

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The electropolishing characteristic curves of rolled 8079 Al alloy in perchloric acid and ethanol solution from -25 °C to 25 °C are obtained. The optimal electropolishing conditions of the 8079 Al alloy with rolled are investigated by optical microscope. The result shows that the lower the electropolishing temperature is, the longer the electropolishing time is, and the time range and voltage range are wider. Furthermore, the calibration rate of the phase after electropolishing is higher than 97% investigated by Electron Back-Scatter Diffraction. The electropolishing effect of both 8079 Al alloy with cast and 8011 Al alloy (cast and rolled) is verified.

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“…In addition, the rolling performance is also related to the distribution of the second phases in the Al matrix. If the distribution of the second phases in the matrix is not uniform, the deformation will be uneven, then pinholes will be formed, and the work hardening rate of the alloy will be increased [19] . For aluminum foil materials, the grains are two-dimensional distribution and the grain boundary is plane network distribution.…”

Section: Introductionmentioning

confidence: 99%

Effects of Si Content on Microstructure and Mechanical Properties of 8079 Aluminum Alloy

Zhang¹,

Kang²,

Zhong³

2020

Res. Appl. Mater. Sci.

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Because of high strength and low breaking rate, 8079 aluminum alloy has become the main material of double zero aluminum foil. However, there are still many problems in the manufacturing process, such as broken belt, pinhole and so on. As the main influencing element, Si has a great influence on the alloy. In this work, the influences of Si with various contents on microstructural evolution and mechanical properties of 8079 aluminum alloy were analyzed by energy dispersive spectrometer (EDS), optical microscope (OM), X-Ray diffraction analyzer (XRD), universal testing machine and Vickers hardness tester. The results showed that the primary Si phase was tiny and dispersed in the alloy when the content of Si is less than 1.3%. As the second phases dispersion strengthening, the Si phase can improve the strength of the alloy. However, when the Si content was too high, the Si phase increased and coarsened. Meanwhile, Fe-rich phase which increased by Si decreased the fine grain strengthening and the second phases strengthening mechanism. The coarse Si phase and the Fe-rich phase are brittle phase, which are easy to become the crack source in the process of material deformation and reduce the strength and toughness of the alloy. The mechanical property test shows that the performance of 8079 aluminum alloy is the best when the Si content is 1.3%.

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Analysis of twin-roll casting AA8079 alloy 6.35-μm foil rolling process

Cited by 6 publications

References 15 publications

Polypropylene-based packaging materials for shelf-life enhancement of yellow corn (Zea mays) kernels: Effects on lutein, aflatoxin content, sensory, and nutritional profiles

Polypropylene-based packaging materials for shelf-life enhancement of yellow corn (Zea mays) kernels: Effects on lutein, aflatoxin content, sensory, and nutritional profiles

Electropolishing Behavior of 8xxx Al Alloy in Perchloric Acid and Ethanol Solution

Effects of Si Content on Microstructure and Mechanical Properties of 8079 Aluminum Alloy

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