Yazar "Günen, Ali" için listeleme
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Microstructure and mechanical properties of borided CoCrFeNiAl0.25Ti0.5 high entropy alloy produced by powder metallurgy
Erdoğan, Azmi; Günen, Ali; Gök, Mustafa Sabri; Zeytin, Sakin (Elsevier, 2021)CoCrFeNiAl0.25Ti0.5 high entropy alloy alloys (HEA), produced by powder metallurgy were subjected to boriding to improve their mechanical properties. Sintering was carried out at 1200 degrees C for 2 h in Ar, and boriding ... -
Microstructure and mechanical properties of borided inconel 625 superalloy
Günen, Ali; Kanca, Erdoğan (Universidade Federal do Rio de Janeiro, 2017)The Ni-based superalloy Inconel 625 is extensively used owing to its high strength, excellent fabricability, good weldability and outstanding resistance to high temperature corrosion against aggressive environments. However, ... -
Microstructure, some mechanical properties and tribocorrosion wear behavior of boronized Al0.07Co1.26Cr1.80Fe1.42Mn1.35Ni1.10 high entropy alloy
Karakaş, Mustafa Serdar; Günen, Ali; Çarboğa, Cemal; Karaca, Yusuf; Demir, Mehmet; Altınay, Yasemin; Erdoğan, Azmi (Elsevier, 2021)High-entropy alloys (HEAs) with face-centered cubic (FCC) structures exhibit high toughness and corrosion resistance, but their average strengths and relatively low wear resistance can limit their engineering ap-plications. ... -
A Modeling Study on Surface Roughness of Spinneret Mold Sections Machined By WEDM
Kanca, Erdoğan; Taşkın, Volkan Cem; Günen, Ali (Sakarya University Journal of Science, 2019)The Wire Electrical Discharge Machining (Wire EDM) is widely used in the cutting of Bulk Continuous Filament (BCF) spinneret molds. Because of the low surface roughness of the spinneret molds obtained by the Wire EDM method, ... -
A new approach to improve some properties of wire arc additively manufactured stainless steel components: Simultaneous homogenization and boriding
Günen, Ali; Gürol, Uğur; Koçak, Mustafa; Çam, Gürel (Elsevier, 2023)Arc-directed energy deposition (Arc-DED), also commonly referred to as wire arc additive manufacturing (WAAM), is a cost-effective 3D metal additive manufacturing process in which large metallic parts can be produced due ... -
A new approach to sintering and boriding of steels "Boro-sintering": Formation, microstructure and wear behaviors
Erdoğan, Azmi; Kurşuncu, Bilal; Günen, Ali; Kalkandelen, Müge; Gök, Mustafa Sabri (Elsevier, 2020)In this study, sintering and boriding methods are applied as a single step, and it is aimed to gain time and economic advantage. For this purpose, powder mixtures prepared in suitable compositions were subjected to sintering ... -
Niobium Carbide Coatings Grown on Cold Work Tool Steel AISI D3 by Thermomechanical Processing: Characterization, Wear and Corrosion Behaviors
Günen, Ali; Açıkgöz, Hasan Hüseyin; Karahan, İsmail Hakkı (Springer, 2023)In this study, niobium carbide (NbC) coatings were grown on AISI D3 cold work tool steel via thermoreactive diffusion (TRD) at 900, 1000 and 1100°C for 2, 4, and 6 h. The microstructures and phase formed, the surface ... -
Pack-Boriding of Monel 400: Microstructural Characterization and Boriding Kinetics
Günen, Ali; Keddam, Mourad; Erdoǧan, Azmi; Karakaş, Mustafa Serdar (Korean Institute of Metals and Materials, 2021)Monel 400 was pack-borided in the temperature range of 1173-1273 K for exposure times of 2-6 h. The boride layers produced on the surface of the alloy were examined by scanning electron microscopy and phase identification ... -
Powder-pack boronizing of CoCrFeNiAl0.5Nb0.5 HEA: Modeling of kinetics, microstructural, mechanical, and tribological characterizations
Günen, Ali; Keddam, Murad; Sünbül, Sefa Emre; İçin, Kürşat; Döleker, Kadir Mert; Gök, Mustafa Sabri; Dal, Serkan; Erdoğan, Azmi (Elsevier, 2022)This study is dedicated to the detailed investigation of boronization kinetic, microstructural, mechanical, and wear properties of high entropy alloys (HEAs) considering their sluggish diffusion effect properties. A ... -
Properties and Corrosion Behavior of Chromium and Vanadium Carbide Composite Coatings Produced on Ductile Cast Iron by Thermoreactive Diffusion Technique
Günen, Ali; Kalkandelen, Müge; Karahan, İsmail Hakkı; Kurt, Bülent; Kanca, Erdoğan; Gök, Mustafa Sabri; Karakaş, Mustafa Serdar (ASME, 2020)Ductile iron (DI) owes many of its attractive mechanical properties to the graphite nodules in its structure. However, since galvanic coupling can occur between the graphite nodules and the matrix in aggressive environments, ... -
Properties and Corrosion Resistance of AISI H13 Hot-Work Tool Steel with Borided B4C Powders
Günen, Ali; Karahan, İsmail Hakkı; Karakaş, Mustafa Serdar; Kurt, Bülent; Kanca, Yusuf; Çay, Vedat Veli; Yıldız, Murat (Korean Institute of Metals and Materials, 2019)Abstract: In this study, the surface of AISI H13 steel was borided with powder blends of B4C and NaBF4 using the powder-pack method at 800, 900 and 1000 °C for 2, 4 and 6 h. The structural and mechanical characteristics ... -
Properties and Corrosion Resistance of Borided AISI H11 Tool Steel
Günen, Ali (Asme, 2020)In this study, the effect of different boriding parameters on some mechanical properties and corrosion resistance of AISI H11 steel, which is extensively used in hot and cold processing applications, was investigated. The ... -
Properties and High Temperature Dry Sliding Wear Behavior of Boronized Inconel 718
Günen, Ali (Springer, 2020)Silicide-free boride layers were grown on Inconel 718 Ni-based superalloy surface at 850 degrees C, 950 degrees C, and 1050 degrees C for 2, 4, 6 hour by the powder pack-boronizing process using nano-sized B4C powders. The ... -
Properties and High-Temperature Wear Behavior of Remelted NiCrBSi Coatings
Günen, Ali; Çürük, Ahmet (Springer, 2020)Remelted NiCrBSi coatings were examined using optical microscopy, scanning electron microscopy, energy dispersive spectroscopy, x-ray diffraction analysis, microhardness and wear testing. After wear tests, the surfaces of ... -
Properties and Tribologic Behavior of Titanium Carbide Coatings on AISI D2 Steel Deposited by Thermoreactive Diffusion
Kurt, Bülent; Günen, Ali; Kanca, Yusuf; Koç, Vahdettin; Gök, Mustafa Sabri; Kırar, Ersan; Askerov, Khangardash (Springer, 2018)In the present study, the metallographic, mechanical and tribologic behaviors of AISI D2 steel specimens coated with TiC through the titanizing process were investigated. The titanizing treatment was performed at the ... -
Properties and tribological performance of ceramic-base chromium and vanadium carbide composite coatings
Günen, Ali; Kurt, Bülent; Milner, Piers; Gök, Mustafa Sabri (Elsevier, 2019)In the current study, the surface of AISI D2 steel was coated with the powder blends of ferro-vanadium (Fe-V) and ferro-chromium (Fe-Cr). The coatings were performed using a thermo-reactive diffusion (TRD) treatment by the ... -
Ramor 500 zırh çeliğinin farklı ark ergitme kaynak birleştirmelerinin metalurjik ve mekanik özelliklerinin incelenmesi
Bayar, Selçuk (İskenderun Teknik Üniversitesi / Mühendislik ve Fen Bilimleri Enstitüsü / İleri Metalurji ve Malzeme Teknolojileri Mühendisliği Anabilim Dalı, 2019)Bu çalışmada, RAMOR 500 zırh çeliği, Hibrit Plazma Ark Kaynağı (HPAK), Gaz Metal Ark Kaynağı (GMAK) ve Soğuk Metal Transfer Ark Kaynağı (CMT) yöntemleri ile robotik olarak kaynak edilmiştir. Üç farklı ergitme kaynak ... -
A response surface study on the grown behavior and some mechanical properties of niobium carbide coatings
Günen, Ali; Açıkgöz, Hasan Hüseyin; Çavdar, Faruk; Karahan, İsmail Hakkı (World Scientific, 2023)In this study, response surface methodology was used to examine the effects of temperature and time on the development of niobium carbide coatings on AISI D3 steel. The effect of niobizing temperature (900-1100C) and period ... -
Sliding Wear and Friction Performance of Pack-Borided Co–28Cr–6Mo Alloy in Physiological Lubricants
Kanca, Yusuf; Gökçekaya, Özkan; Günen, Ali (Springer, 2023)The role of bovine calf serum (BCS) related to the functional performance of synovial fluid on the tribological behavior of borides grown on cobalt-28chromium-6molybdenum (Co-28Cr-6Mo) alloy used in orthopedic prostheses ... -
St 22 Çeliğinin Derin Çekilebilirliğine Etki Eden Parametrelerin ANOVA ile Analizi
Kanca, Erdoğan; Günen, Ali (2018)Bu çalışmada soğuk haddelenmiş ve ardından galvanizlenmiş St 22 çeliğininkimyasal bileşimi, soğuk haddeleme öncesindeki sac kalınlığı ve mekaniközellikleri (akma ve çekme gerilmesi, % uzama) ile soğuk haddeleme ezmeoranının ...