Effect of Equal Channel Angular Rolling Process on the Fracture Mechanisms of Al-7075 and Al-5052 Alloys
محل انتشار: سومین کنفرانس بین المللی مهندسی مکانیک و هوافضا
سال انتشار: 1397
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 608
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شناسه ملی سند علمی:
MECHAERO03_365
تاریخ نمایه سازی: 5 آبان 1397
چکیده مقاله:
Fracture is one of the main criteria in designing industrial structures that its exact comprehension is highly significant in new sciences. This study analyzes the effect of equal channel angular rolling (ECAR) process on fracture mechanics in Al-7075 alloy ECARed through two routes of A and C, and in Al -5052 alloy ECARed through the route of C. The results of analyzing fracture surfaces in samples, using scanning electron microscope (SEM), indicate that fracture has been ductile in samples without application of the process, on which a combination of shear and ductile fracture appeared after application. Moreover, it was observed that ECARed Al -7075 samples in route A have been fractured more in comparison to ECARed samples in route C. In analyzing mechanical properties, yield stress, tensile strength, and Surface hardness increased with increase in the number of passes in each pair of sheet, but elongation decreased.
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نویسندگان
Mohammad Honarpisheh
Faculty of Mechanical Engineering, University of Kashan, Kashan, Iran
Saeid Saki Entezami
Department of Mechanics, Jasb Branch, Islamic Azad University, Delijan, Iran