Yayın tarihi için Makale Koleksiyonu listeleme
Toplam kayıt 186, listelenen: 21-40
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Extremely-broad band metamaterial absorber for solar energy harvesting based on star shaped resonator
(Springer, 2017)A new metamaterial absorber (MA) is investigated and shown numerically for solar energy harvesting for future solar cell applications. The structure consists of two metals and one dielectric layer having different thicknesses. ... -
Farklı bor kimyasalları ile borlanmış Inconel 625 alaşımının karakterizasyonu
(Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi, 2017)Bu çalışmada, nikel bazlı süper alaşımlar içerisinde endüstride yaygın olarak kullanılan Inconel 625 alaşımı 3 farklı borlama tozu ile borlanmıştır. Kullanılan borlama tozları, %90 elementel nano bor tozu + %10 NaBF4 (NB), ... -
Friction stir welding of AZ31 magnesium alloys – A numerical and experimental study
(Brazilian Association of Computational Mechanics, 2017)In this paper, weldability of magnesium alloys by friction stir welding (FSW) method which is difficult to join by the fusion welding have been investigated experimentally and numerically. To this end, the connection of ... -
Farklı kalınlıktaki AA6061-T6 levhaların sürtünme karıştırma kaynağı için uygun kaynak parametrelerinin belirlenmesi
(Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, 2018)Bu çalışmada, dört farklı kalınlıktaki AA6061-T6 levhaların sürtünme karıştırma kaynağı ile hatasız birleştirilebilmesi için kullanılması gereken kaynak parametreleri belirlenmeye çalışılmıştır. Bu amaçla, her bir levha ... -
Sürtünme Karıştırma Kaynağıyla Birleştirilen St37/St52 Levhaların Mikroyapı Karakterizasyonu ve Mekanik Özellikleri
(2018)Sürtünme Karıştırma Kaynağı (SKK), geçtiğimiz otuz yılda çeşitli endüstrilerde alüminyum alaşımlarına başarı ile uygulanmaktadır. Fakat çeliklerin kaynağında, bu işlemlerde açığa çıkan sıcaklıklara dayanabilecek karıştırıcı ... -
St 22 Çeliğinin Derin Çekilebilirliğine Etki Eden Parametrelerin ANOVA ile Analizi
(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 ... -
The Effect of Nonwoven Electrospun PAN Nanofiber Mat on Mechanical and Thermal Properties of Epoxy Composites
(2018)In this study mechanical and thermal properties of epoxy resin reinforced withdifferent numbers of nanofiber layers which produced with electrospinning method wasinvestigated. Solution of 10 wt% of polyacrylonitrile (PAN) ... -
High temperature wear behavior of the surface-modified externally cooled rolls
(Elsevier, 2018)Externally cooled rolls of a steel plant were coated using three different surface modification techniques, namely titanizing, boronizing and borotitanizing. The grown coatings were examined using optical microscopy, ... -
A Comparative Study on the Effects of Different Thermochemical Coating Techniques on Corrosion Resistance of STKM-13A Steel
(Springer, 2018)The corrosion resistances of three different thermochemical coatings (grown using titanizing, boriding, and borotitanizing treatments) applied to STKM-13A steel surfaces were investigated. The coatings were characterized ... -
Prospects of laser beam welding and friction stir welding processes for aluminum airframe structural applications
(Elsevier Ltd, 2018)The present study deals with laser beam welding (LBW) and friction stir welding (FSW) applied to high-strength aluminum alloys used in aircraft industry and displays their advantages compared with the riveting technique ... -
Boride Layer Growth Kinetics Of Aisi H13 Steel Borided With Nano-Sized Powders
(Polish Academy Sciences, Institute Metallurgy & Materials Sciences, 2018)Growth kinetics of boride layers in AISI H13 steel was investigated using the pack bonding method at temperatures of 1073, 1173 and 1273 K (800 degrees C, 900 degrees C and 1000 degrees C) for periods of 2, 4 and 6 h with ... -
Microstructural and mechanical properties of friction stir welded pure lead
(National Institute of Science Communication and Information Resources (NISCAIR), 2018)The present study focuses on the applicability of friction stir welding to pure Pb plates. The joint performances are evaluated by optical microscopy, microhardness measurements, notch impact tests and three point bending ... -
Microstructure and mechanical properties of friction-stir welded St52 steel joints
(Springer, 2018)The aim of this work is to investigate the mechanical properties and microstructures of friction-stir welded (FSWed) St52 structural steel joints. In this study, St52 steel plates with a thickness of 4 mm were butt-welded ... -
Effects of hydrogenation of fossil fuels with hydrogen and hydroxy gas on performance and emissions of internal combustion engines
(Elsevier, 2018)Energy security is an important consideration for development of future transport fuels. Among the all gaseous fuels hydrogen or hydroxy (HHO) gas is considered to be one of the clean alternative fuels. Hydrogen is very ... -
Mechanical properties of friction stir welded St 37 and St 44 steel joints
(Carl Hanser Verlag, 2018)In this study, the weldability of lower strength St 37 grade steel plate with a higher strength steel plate (i. e., St 44) using the friction stir welding technique has been studied. St 37 grade steel sheets are widely ... -
State of art of hydrogen usage as a fuel on aviation
(State of art of hydrogen usage as a fuel on aviation, 2018)Air transportation phenomenon is placed with sharing of world energy consumption between 2.5% and 5% totally and showing an increasing perspective approximately 4.8% per year. With the increasing world population and the ... -
Energy distribution analyses of an additional traction battery on hydrogen fuel cell hybrid electric vehicle
(Elsevier Ltd, 2019)Hydrogen is the most abundant element in the world and produces only water vapor as a result of chemical reaction that occurred in fuel cells. Therefore, fuel cell electric vehicles, which use hydrogen as fuel, continue ... -
Estimation of wind energy power using different artificial intelligence techniques and empirical equations
(Taylor and Francis Inc., 2019)The understanding of the behavior of a wind turbine is difficult due to changes in weather conditions. To obtain the response of a wind turbine influenced by changes in both wind speed and its direction, using the ... -
Investigation of electromagnetic properties of glass-fiber reinforced epoxy composites containing pan nanofibers with mwcnt/graphene additive
(Parlar Scientific Publications (P S P), 2019)In this work; the differences between of electromagnetic properties of glass fiber reinforced (GFR)-epoxy laminate composites with various nanoparticle doped polyacrylonitrile (PAN) fibers were investigated. The laminated ... -
Investigation of microstructure and mechanical properties of friction stir welded dissimilar St37/St52 joints
(Institute of Physics Publishing, 2019)Although friction stir welding (FSW) has widely been applied to aluminum alloys in several industries over the past three decades, it is not yet used in industry for joining of steels. The aim of this study is to characterize ...