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Journal of Computational and Applied Research in Mechanical Engineering - JCARME، جلد ۲، شماره ۱، صفحات ۳۱-۳۶
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عنوان انگلیسی A numerical and experimental study on tubular channel angular pressing (TCAP) as a noble SPD method
چکیده انگلیسی مقاله The current study conducted a finite element (FE) and experimental investigation on tubular channel angular pressing as a noble severe plastic deformation technique for producing ultrafine grained and nanostructure tubular components. To examine the effects of the TCAP process on the strain distribution and deformation behavior, FE simulations were employed. The FE results demonstrated that equivalent plastic strain of 2.1-2.9 was developed after applying one pass TCAP. Analytical investigations were carried out to calculate the accumulated strain during the process. Tube thinning in the early stages of the process was observed as a result of tensile circumferential strains but this could be compensated for by the back pressure effect resulting from the next shear zones and also compressive circumferential strain resulting from decreasing the tube diameter. Microstructural observations showed significant grain refinement after one pass TCAP on AZ91 magnesium alloy at 300 ºC. Microhardness measurements demonstrated increasing hardness to 78 HV from the initial value of 51 HV.
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نویسندگان مقاله قادر فرجی |
school of mechanical engineering, college of engineering, university of tehran, tehran, iran, 11155-4563
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

محمود موسوی مشهدی | mosavi mashhadi
school of mechanical engineering, college of engineering, university of tehran, tehran, iran, 11155-4563
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

کارن ابری نیا |
school of mechanical engineering, college of engineering, university of tehran, tehran, iran, 11155-4563
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

نشانی اینترنتی http://jcarme.srttu.edu/article_41_f67704b187f3fc5068a442df8b7824ea.pdf
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