پديد آورنده :
شاهرخ اصفهاني، سپيده
عنوان :
ساخت كامپوزيت آلومينيوم - اكسيد روي به روش نورد تجمعي و بررسي خواص ريزساختاري، مكانيكي و رفتار خوردگي
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شناسايي و انتخاب مواد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
دوازده، 76ص.: مصور، جدول، نمودار
استاد راهنما :
محمدرضا طرقي نژاد، محمدعلي گلعذار
توصيفگر ها :
استحكام پيوند , بررسي سطوح شكست , محاسبه ي چگالي نابجايي , پلاريزاسيون سيكلي
تاريخ نمايه سازي :
1394/06/07
استاد داور :
ابوذر طاهري زاده، عبدالمجيد اسلامي
تاريخ ورود اطلاعات :
1396/10/04
چكيده فارسي :
به فارسي و انگليسي
چكيده انگليسي :
Manufacturing of Aluminum Zinc Oxide Composite by Accumulative Roll Bonding Process and Evaluating Microstructural Mechanical and Corrosion Properties Sepideh Shahrokh Esfahani s shahrokh@ma iut ac ir Department of Materials Engineering Isfahan University of Technology Isfahan 84156 83111 IranDegree M Sc Language FarsiSupervisors Mohammad Reza Toroghinejad Prof Email Toroghi@cc iut ac irMohammad Ali Golozar Prof Email Golozar@cc iut ac irAbstractIn this study accumulative roll bonding process was used for manufacturing ofaluminum zinc oxide composite and monolithic samples In this respect effect of zinc oxideparticles on bond strength of aluminum sheets was elaborately quantified Then compositeswith different zinc oxide volume percentage were produced and compared with thosewithout reinforcement Heating of powder particles in 200 C for 2 hours was then studied followed by manufacturing of composite samples with heated zinc oxide Moreover bondstrength between strips in the presence of zinc oxide particles was evaluated by peeling testand microstructural observation during different ARB cycles Tensile and hardness test werechosen as performance measurements and evaluation was extended to the fracture surfacesthrough scanning electron microscopy Using the tools provided by Rietveld the XRDpatterns were analyzed leading to computing the dislocation density of monolithic andcomposites Also a variety of measurements including corrosion current density corrosionpotential and pitting sensitivity of samples were made by cyclic polarization test Our resultsindicate that the higher percentage of reinforcement leads to the weaker bond strength Furthermore experiments showed that one can activate different strengthening mechanismsby increasing the cycle s number of ARB process which consequently improves the tensilestrength Moreover it was conjectured that due to the agglomerated reinforcement thecomposite samples had a lesser tensile strength compared to that of monolithic ones Themechanical properties had a good correlation with their corresponding microstructuralobservations It was also observed a co existence of the ductile and shear zones withagglomerated zones in fracture surfaces of composite Finally it was observed that neitherzinc oxide reinforcement nor the ARB process could significantly affect the corrosioncurrent density or the corrosion potentials of samples Key words Aluminum zinc oxide composite Accumulative Roll Bonding Process ARB Bond strength Microstructure Mechanical properties Fractography Cyclic polarization
استاد راهنما :
محمدرضا طرقي نژاد، محمدعلي گلعذار
استاد داور :
ابوذر طاهري زاده، عبدالمجيد اسلامي
