پديد آورنده :
هاروني، مسعود
عنوان :
روكش كاري جوشي فولاد ساده كربني به روش درجا با تركيبات TiNi و TiNi-TiC و مقايسه رفتار تريبولوژيكي آنها
مقطع تحصيلي :
كارشناسي ارشد
گرايش تحصيلي :
ساخت و توليد
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده مكانيك
صفحه شمار :
[هشت]، 82، [II] ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
عليرضا فدايي تهراني، مرتضي شمعانيان
توصيفگر ها :
متالوگرافي , SEM
تاريخ نمايه سازي :
06/03/87
استاد داور :
محمد رضا فروزان، جواد زركوب
تاريخ ورود اطلاعات :
1396/03/06
چكيده فارسي :
به فارسي و انگليسي: قابل رؤيت در نسخه ديجيتال
چكيده انگليسي :
IUT 77142Degree Master of ScienceTitle Tribological comparison of in situ weld surfacing on carbon steel with TiNi and TiNi TiC compositionsAuthor Masoud HarooniSupervisor Dr Alireza Fadaei TehraniSupervisor Dr Morteza ShamanianDepartment Mechanical engineeringDate 2008 April 14Language PersianAbstract This research is done due to improvement of simple carbon steel st52 Tribologicalmanner by means of TiNi and TiNi TiC coatings created by welding and comparing theirmicrostructure and wear manner together For this purpose Ti Ni and Ti Ni C powdermixtures were mixed in two groups called A and B with equal stochiometry ratio Group Aand B content were TiNi and TiNi TiC respectively Then Ti Ni and TiC powders weremixed in air using a ball mill apparatus for 2 hours After that a layer of 1 mm of eachgroup was coated on substrate by mixing with acetone to be dough like and was melted byGTAW process X Ray Diffraction optical microscope scanning electron microscope microhardnesstest and reciprocating wear test were used to study phase kind microstructure andmicrohardness profile and wear mechanisms Studies were demonstrated that for Ti Ni mixture TiNi Ti2Ni and a little amount ofTiO2 and for Ti Ni C mixture TiNi TiC FeNi and Fe3O4 were formed on the substrate Hardness of TiNi was about 700 Vickers and for TiNi TiC was about 800 Vickers The results achieved in this research have shown that friction coefficient was decreasedand tribological manner was improved by using these two coatings on St52 carbon steel By detecting wear surfaces and wear bits abrasion and lamination mechanisms wereresulted for TiNi adhesion and abrasion were resulted for TiNi TiC composition Keywords Weld Surfacing TIG TiNi TiNi TiC Ball Mill Reciprocating Wear Test
استاد راهنما :
عليرضا فدايي تهراني، مرتضي شمعانيان
استاد داور :
محمد رضا فروزان، جواد زركوب
