پديد آورنده :
خادم زاده، سعيد
عنوان :
ساخت و ارزيابي نوارهاي كامپوزيت لايه اي آلومينيوم - مس به روش فرايند تكراري نورد سرد تجمعي با تازدن
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شناسايي و انتخاب مواد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
نه،124ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمدرضا طرقي نژاد، فخرالدين اشرفي زاده
توصيفگر ها :
تغيير شكل پلاستيك شديد , ريز ساختار , استحكام كششي , شكست نگاري , تركيبات بين فلزي
تاريخ نمايه سازي :
89/8/4
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
127 Y q Formation and Characterization of Al Cu Multilayered Composite by Accumulative Roll Bonding and Folding Process Saeed Khademzadeh s khademzadeh@ma iut ac ir June Department of Materials Engineering Isfahan University of Technology 84156 83111 Isfahan Iran Degree M Sc Language Farsi Dr Mohammad Reza Toroghinejad Assoc Prof Supervisor E mail toroghi@cc iut ac ir Prof Fakhreddin Ashrafizadeh Prof Supervisor Email ashrafif@cc iut ac ir Abstract Al Cu multilayered composite has been successfully synthesized by a new method of severe plastic deformation named accumulative roll bonding and folding ARBF The microstructure evolution mechanical properties and interdiffusion of the multilayered Al Cu composite were characterized Fracture surfaces after tensile tests were examined by scanning electron microscopy SEM Sintering treatments at temperatures between 300 and 500 C were applied to the as rolled laminates As increasing the number of ARBF cycle copper layers were necked and fractured With increasing ARBF cycles strength microhardness and elongation of these composites increased Observation revealed evidence of a mixture of failure mechanisms cleavage ductile failure and intergranular fracture The crystallite size of Al and Cu which calculated using the Rietveld method was 70nm for aluminum and 50nm for copper after 10 cycles of ARBF By increasing the number of ARBF cycles diffusion of Cu atoms was increased Three different types of phase development were detected in the interface region As the sintering time and or temperature increased the Cu9Al4 phase became dominant Keywords Severe plastic deformation Accumulative roll bonding and folding ARBF Al Cu multilayer Microstructure Tensile strength Fractography Intermetallics
استاد راهنما :
محمدرضا طرقي نژاد، فخرالدين اشرفي زاده
