این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
Iranian Journal of Materials Forming، جلد ۴، شماره ۱، صفحات ۲۱-۲۷
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Nanotwins Formation in Accumulative Roll-Bonded Brass
چکیده انگلیسی مقاله Accumulative roll-bonding (ARB) is a severe plastic deformation process that is using rolling to produce ultrafine grains in coarse grained metallic materials. In this study, ARB has been applied on 70/30 brass up to 6 cycles at ambient temperature and non-lubricated conditions to apply a true strain up to 4.8 Von Mises strain. Microstructures of ARBed brass samples were characterized by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results indicated that during ARB cycles, the grain size decreased from micron-size to nano-size and mechanical twins were widely observed throughout the microstructure after cycle 1. However after cycle 3, the twinning activity became significantly limited and deformation occurred via shear bands formation. After cycle 6, the measured average grain size was about 50 nm and nanotwins were observed originating from grain boundaries and gain boundary junctions. With the reduction in the grain size down to nanometer, the pole mechanism was not the dominant mechanism of nanotwin formation and nanotwins were mainly produced via partial dislocation emission from grain boundaries and grain boundary junctions.
کلیدواژه‌های انگلیسی مقاله
نویسندگان مقاله s پاسبانی |
school of mechanical, industrial, and manufacturing engineering oregon state university corvallis, or 97331-6001 usa

محمدرضا طرقی نژاد | m r
department of materials engineering, isfahan university of technology, isfahan
سازمان اصلی تایید شده: دانشگاه صنعتی اصفهان (Isfahan university of technology)

g دینی |
isfahan university
سازمان اصلی تایید شده: دانشگاه اصفهان (Isfahan university)

نشانی اینترنتی http://ijmf.shirazu.ac.ir/article_3945_3ab69f83fa3104d341574b7daa126c22.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/453/article-453-333843.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده
نوع مقاله منتشر شده
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات