Plastic deformation behavior of Aluminum 5452 alloy under unconstrained high pressure torsion and effect of turns and applied pressures on their r*

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Ghaemi Khiavi Sina; Emadoddin Esmaeil

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MANUFACTURING ENGINEERING Year:2016 | Volume:3 | Issue:3 Page(s): 40-47

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Title

Plastic deformation behavior of Aluminum 5452 alloy under unconstrained high pressure torsion and effect of turns and applied pressures on their r*

Author(s)

Ghaemi Khiavi Sina | Emadoddin Esmaeil | Issue Writer Certificate

Keywords

High Pressure Torsion (HPT)

Severe Plastic Deformation

Equivalent Plastic Strain

Critical radius (r*)(r*)

Abstract

High pressure torsion is an effective Severe Plastic Deformation method for producing nanostructured bulk materials. In this research, deformation behavior of Aluminum 5452 alloy disks obtained from unconstrained high pressure torsion has been studied. There is a region between adhesive zone and sliding zone defined as Critical radius (r*)(r*) on vicinity of which, microhardness and effective applied strains (PEEQ) are more than those of other regions. Since Number of Turns and Applied Pressure are the most important parameters of HPT process, for studying their effects on r* of disks, in this research the process was simulated by applying conditions of previous experimental research. For this end, ABAQUS software was used and r* values were calculated and recorded. It was observed that by increasing N and applied P, r* values increase. For better studying the properties of disks obtained from unconstrained HPT process, the process was simulated under applied pressure of 2. 7 GPa and 1, 2, 3 … and 10 turns. Eventually by using PEEQ distribution obtained from software, deformation behavior of disks in higher turns was analyzed, and specially the r* of unconstrained HPT that obtained from experimental tests and simulation, was examined.

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APA: Copy

Ghaemi Khiavi, Sina, & Emadoddin, Esmaeil. (1395). رفتار تغییر شکل پلاستیک دیسک های آلیاژ آلومینیوم 5452 تحت فرآیند پیچش فشار بالای مقید نشده و تأثیر پارامترهای دور و فشارهای اعمالی بر شعاع بحرانی آن ها. مهندسی ساخت و تولید ایران, 3(3 ), 40-47. SID. https://sid.ir/paper/268279/en

Vancouver: Copy

Ghaemi Khiavi Sina, Emadoddin Esmaeil. رفتار تغییر شکل پلاستیک دیسک های آلیاژ آلومینیوم 5452 تحت فرآیند پیچش فشار بالای مقید نشده و تأثیر پارامترهای دور و فشارهای اعمالی بر شعاع بحرانی آن ها. مهندسی ساخت و تولید ایران[Internet]. 1395;3(3 ):40-47. Available from: https://sid.ir/paper/268279/en

IEEE: Copy

Sina Ghaemi Khiavi, and Esmaeil Emadoddin, “رفتار تغییر شکل پلاستیک دیسک های آلیاژ آلومینیوم 5452 تحت فرآیند پیچش فشار بالای مقید نشده و تأثیر پارامترهای دور و فشارهای اعمالی بر شعاع بحرانی آن ها,” مهندسی ساخت و تولید ایران, vol. 3, no. 3 , pp. 40–47, 1395, [Online]. Available: https://sid.ir/paper/268279/en

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