پديد آورنده :
بختياري، اميررضا
عنوان :
ارزيابي عوامل فرايند بر ضخامت لايه هاي آلياژي و رفتارخوردگي پوشش گالوانيزه گرم
مقطع تحصيلي :
كارشناسي ارشد
محل تحصيل :
اصفهان:دانشگاه صنعتي اصفهان،دانشكده مواد
صفحه شمار :
ده،100ص.:مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
محمدرضا طرقي نژاد،فخرالدين اشرفي زاده
استاد مشاور :
كيوان رئيسي
توصيفگر ها :
مقاومت خوردگي , آزمون پلاريزاسيون تافل , عمليات نورد پوسته اي
تاريخ نمايه سازي :
24/9/88
استاد داور :
احمد ساعتچي،محمودمنيرواقفي
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتالي
چكيده انگليسي :
Influence of Process Parameters on Intermetallic Layers Thickness and Corrosion Behaviour of Hot Dip Galvanized Coatings Amir Reza Bakhtiari a bakhtiari@ma iut ac ir May 18 2009 Department of Materials Engineering Isfahan University of Technology 84156 83111 Isfahan Iran Degree M Sc Language Farsi M R Toroghinejad Assoc Prof Supervisor E mail toroghi@cc iut ac ir F Ashrafizadeh Prof Supervisor E mail ashrafif@cc iut ac ir K Raeissi Assoc Prof Advisor E mail k raeissi@cc iut ac ir Abstract In this study Influence of Process Parameters on Intermetallic Layers Thickness and Corrosion Behaviour of Hot Dip Galvanized Coatings was investigation The effects of increasing the lead content of zinc bath from 0 02 to 0 065 wt and antimony content from 0 006 to 0 018 wt on texture corrosion resistance surface morphology and intermetallic layers thickness were evaluated The effect of coating thickness and substrate thickness on intermetallic layers thickness were studied Optical microscopy and scaning electron microscopy were employed to study surface morphology and intermetallic layers thickness intermetallic layers thickness recognized by EDS analysis Coating texture was determined using XRD and corrosion resistance was analyzed using salt spray and Tafel polarization tests Results show that increasing the antimony and lead content of zinc bath decreases the corrosion resistance Also increasing the lead content increase the gamma layer thickness Increasing the antimony content of zinc bath result in the decrease the relative intensity of 00 2 basal planes By increasing the antimony and lead content of zinc bath corrosion resistance would be decreased Such decreasing in basal component relative intensity roughness and increasing the gamma layer of the coating would result in the decreasing of coating corrosion resistance The effect of force variations in skin pass rolling process on texture corrosion behaviour and roughness of coatings show that by increasing the force of skin pass rolling the texture coeficient CT of 00 2 basal plane decreased but CT of prismatic planes increased Furthermore by increasing the force of skin pass rolling corrosion resistance decreased Increasing skin pass force would also cause an increase in surface roughness and microcracks in the coating Such increasing in prismatic component texture coefficient roughness and microcracks of the coating would result in the decreasing of coating corrosion resistance Key Words galvanized steel sheet intermetallic layers texture corrosion skin pass rolling roughness pdfMachine A pdf writer that produces quality PDF files with ease Produce quality PDF files in seconds and preserve the integrity of your original documents Compatible across nearly all Windows platforms simply open the document you want to convert click print select the Broadgun pdfMachine printer and that s it Get yours now
استاد راهنما :
محمدرضا طرقي نژاد،فخرالدين اشرفي زاده
استاد مشاور :
كيوان رئيسي
استاد داور :
احمد ساعتچي،محمودمنيرواقفي
