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Khajezade, Ali, Habibi Parsa, Mohammad, Mirzadeh, Hamed, Montazeri-pour, Mehdi. (1395). Grain Refinement Efficiency of Multi-Axial Incremental Forging and Shearing: A Crystal Plasticity Analysis. , 49(1), 11-16. doi: 10.7508/jufgnsm.2016.01.02
Ali Khajezade; Mohammad Habibi Parsa; Hamed Mirzadeh; Mehdi Montazeri-pour. "Grain Refinement Efficiency of Multi-Axial Incremental Forging and Shearing: A Crystal Plasticity Analysis". , 49, 1, 1395, 11-16. doi: 10.7508/jufgnsm.2016.01.02
Khajezade, Ali, Habibi Parsa, Mohammad, Mirzadeh, Hamed, Montazeri-pour, Mehdi. (1395). 'Grain Refinement Efficiency of Multi-Axial Incremental Forging and Shearing: A Crystal Plasticity Analysis', , 49(1), pp. 11-16. doi: 10.7508/jufgnsm.2016.01.02
Khajezade, Ali, Habibi Parsa, Mohammad, Mirzadeh, Hamed, Montazeri-pour, Mehdi. Grain Refinement Efficiency of Multi-Axial Incremental Forging and Shearing: A Crystal Plasticity Analysis. , 1395; 49(1): 11-16. doi: 10.7508/jufgnsm.2016.01.02

Grain Refinement Efficiency of Multi-Axial Incremental Forging and Shearing: A Crystal Plasticity Analysis

Journal of Ultrafine Grained and Nanostructured Materials
مقاله 2، دوره 49، شماره 1، شهریور 2016، صفحه 11-16    اصل مقاله (828.22 K)
نوع مقاله: Research Paper
شناسه دیجیتال (DOI): 10.7508/jufgnsm.2016.01.02
نویسندگان
Ali Khajezade1؛ Mohammad Habibi Parsa* 1، 2، 3، ؛ Hamed Mirzadeh1، 3، ؛ Mehdi Montazeri-pour1
1School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, P.O. Box 11155-4563, Tehran, Iran
2Center of Excellence for High Performance Materials, School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran
3Advanced Metal forming and Thermomechanical Processing Laboratory, School of Metallurgy and Materials Engineering, University of Tehran, Tehran, Iran
چکیده
Severe plastic deformation is a technical method to produce functional material with special properties such as high strength and specific physical properties. Selection of an efficient severe plastic deformation for grain refinement is a challenging field of study and using a modeling technique to predict the refinement efficiency has gained a lot of attentions. A comparative study was carried out on the grain refinement ability of two severe plastic deformation techniques. Accordingly, beta-tin samples were processed for almost the same strain level by the equal channel angular extrusion (ECAE) and the newly developed multi-axial incremental forging and shearing (MAIFS). Optical microscope and tensile tests were used to investigate the microstructure and mechanical properties. It was found that the MAIFS process is more efficient in grain refinement than ECAE by help of crystal plasticity analysis and experimental observation. This was ascribed to the more activated slip systems in MAIFS than ECAE and activation of secondary modes of deformation in MAIFS. The conclusion was supported by the finer grains that was observed in the sample processed by MAIFS and compared with grain size of the sample processed by ECAE. Finally, these observations were related to materials flow for beta-Tin during tensile test.
کلیدواژه‌ها
Crystal Plasticity؛ Grain refinement؛ Severe Plastic Deformation؛ Texture؛ VPSC
مراجع

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