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Effect of borotitanizing on microstructure and wear behavior of Inconel 625

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dc.contributor.author Kanca, Erdoğan
dc.contributor.author Günen, Ali
dc.contributor.author Çakır, Hüseyin
dc.contributor.author Karakaş, Mustafa Serdar
dc.contributor.author Gök, Mustafa Sabri
dc.contributor.author Küçük, Yılmaz
dc.contributor.author Demir, Mehmet
dc.date.accessioned 2020-03-18T11:40:32Z
dc.date.available 2020-03-18T11:40:32Z
dc.date.issued 2017-02-15
dc.identifier.citation Günen, Ali...et.al.,"Effect of borotitanizing on microstructure and wear behavior of Inconel 625", Surface & Coatings Technology, Vol.311, pp.374-382, (2017). tr_TR
dc.identifier.issn 0257-8972
dc.identifier.uri http://hdl.handle.net/20.500.12416/2666
dc.description.abstract nconel 625, a nickel-based superalloy, is used in a wide range of applications including the marine and petroleum industries under where it is subjected to harsh conditions such as high temperatures and highly corrosive environments. However, its wear resistance is limited and can be often considered unsatisfactory in some applications. If this alloy were to be used under abrasive wear conditions, its surface would have to be protected by a wear resistant coating. In this study, a two-step thermo-chemical borotitanizing treatment (including an initial boriding step followed by titanium diffusion) is proposed. Microstructural characterization (optical microscopy, scanning electron microscopy, energy dispersive spectroscopy and X-ray diffraction) and mechanical properties (induding micro-hardness and micro-abrasion wear) of the coated samples were conducted. Microstructural studies revealed a compact, homogenous, silicide-free coating, consisting of four distinct regions: a TiB2 layer, a multi-phase boride layer, a diffusion zone and the substrate. Hardness values were significantly higher than those obtained by standard boriding treatments. Due to the nano-sized bodding agents used, the coatings formed on the surface were thicker than coatings obtained by methods such as nitriding, paste bodding and pack-boriding, and comparable to that of laser boriding. The wear resistance was improved by up to ten times in comparison with untreated Inconel 625. Grooving was the effective wear mechanism in untreated Inconel 625. How-ever the increase in surface hardness achieved by the borotitanizing treatment changed the wear mechanism in the coated samples from grooving to rolling. tr_TR
dc.language.iso eng tr_TR
dc.publisher Elsevier Science BV tr_TR
dc.relation.isversionof 10.1016/j.surfcoat.2016.12.097 tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Ni-Based Superalloys tr_TR
dc.subject Surface Modification tr_TR
dc.subject Mechanical Properties tr_TR
dc.subject Wear tr_TR
dc.title Effect of borotitanizing on microstructure and wear behavior of Inconel 625 tr_TR
dc.type article tr_TR
dc.relation.journal Surface & Coatings Technology tr_TR
dc.contributor.authorID 48915 tr_TR
dc.identifier.volume 311 tr_TR
dc.identifier.startpage 374 tr_TR
dc.identifier.endpage 382 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Malzeme Bilimi ve Mühendisliği Bölümü tr_TR


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