پديد آورنده :
خيرانديش، عليرضا
عنوان :
ارزيابي رفتار تربيولوژيكي پوشش استلايت 6 بر روي زير لايه اينكونل
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
شناسايي و انتخاب مواد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مواد
صفحه شمار :
سيزده،101ص.: مصور،جدول،نمودار
يادداشت :
ص.ع.به فارسي و انگليسي
استاد راهنما :
مهدي صالحي
استاد مشاور :
مرتضي شمانيان
توصيفگر ها :
سوپر آلياژ , رفتار سايشي , روكش سختي , اينكونل 617
تاريخ نمايه سازي :
3/2/93
استاد داور :
علي اشرفي، عبدالمجيد اسلامي
چكيده انگليسي :
Evaluation of Tribological Behavior of Stellite6 Coating on Inconel 617 Substrate Alireza Kheirandish Alireza Kheirandish@ma iut ac ir Date of Submission January 2014 Department of Material Engineering Isfahan Universities of technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor M Salehi Professor surfacesalehi@hotmail com Abstract The aim of this present research is to evaluate the tribological behavior of stellite6 coatings on Inconel 617 substrate Numerous investigations carried out for selecting and improving surface coatings to reduce surface failure of materials in various industries Superalloys consist of nickel base iron nickel base and cobalt base materials used extensively in petroleum gas and petrochemical industries Inconel 617 is a nickel base superalloy that has extensive uses because of its high corrosion and oxidation resistance at high temperatures In this order cobalt base superalloys such as stellite6 with the chemical composition of Co 28Cr 4 5W 1 1C are good candidates due to their high wear and erosion resistance behavior In this research stellite6 coatings in various passes deposited by use of pulse TIG welding after determining of optimum parameters by use of Taguchi method of experiment design Microstructural properties were investigated by optical microscopy scanning electron microscopy SEM X ray diffraction XRD and energy dispersive spectroscopy EDS These results showed that at the surface of coatings chromium and cobalt rich carbides formed Line scanning EDS showed that dilution of nickel decreases and microhardness increases by increase of passes The Pin on disc wear tests were used to study the tribological properties of the samples Results showed that by increasing of passes the wear resistance increased The ball on disk wear test at high temperature 600 C were carried out Scanning electron microscopy x ray diffraction and microhardness showed that by oxide adhesion formation on the stellite6 coatings surface the wear resistance at high temperature compare to inconel 617 substrate increases Keywords Superalloy Stellite6 Wear behavior Cladding Inconel 617
استاد راهنما :
مهدي صالحي
استاد مشاور :
مرتضي شمانيان
استاد داور :
علي اشرفي، عبدالمجيد اسلامي
