Kurum Yazarı "Kayalı, Yusuf" Metalurji ve Malzeme Mühendisliği Bölümü İçin Listeleme
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Investigation of diffusion kinetics of plasma paste borided AISI 8620 steel using a mixture of B2O3 paste and B4C/SiC
Güneş, İbrahim; Şükrü, Taktak; Yalçın, Yılmaz; Şükrü, Ülker; Kayalı, Yusuf; Bindal, Cuma (Springer, 2013)In the present study, AISI 8620 steel was plasma paste borided by using various B2O3 paste mixture. The plasma paste boriding process was carried out in a dc plasma system at temperatures of 973, 1023 and 1073 K for 2, ... -
Investigation of electrochemical corrosion behavior in a 3.5wt.% NaCl solution of boronized dual-phase steel
Kayalı, Yusuf; Anatürk, Bilal (Elsevier, April 2013)In this study, corrosion behaviors of boronized and non-boronized dual-phase steel were investigated with Tafel extrapolation and linear polarization methods in a 3.5 wt.% NaCl solution. Microstructure analyses show that ... -
Investigation of mechanical properties of boro-tempered ductile iron
Kayalı, Yusuf; Taktak, Şükrü; Ulu, Sinan; Yalçın, Yılmaz (Elsevier, 2010)In this study, the effects of boro-tempering heat treatment on mechanical properties of ductile iron were investigated. Standard tensile test samples and unnotched Charpy specimens were boronized at 900 °C for 1, 3 and 5 ... -
Investigation of surface properties and wear resistance of borided steels with different B4C mixtures
Güneş, İbrahim; Kayalı, Yusuf (Niscair, 2012)Boriding is a thermo-chemical surface hardening treatment applied to iron based materials. This treatment is performed by boron element diffusing into iron based materials at high temperatures. Wear resistance increases ... -
Investigation of the diffusion kinetics of borided stainless steels
Kayalı, Yusuf (Springer, December 2)In this study, the kinetics of borides formed on AISI 420, AISI 304 and AISI 304L stainless steels was investigated. Boronizing treatment was carried out using Ekabor-II powders at the processing temperatures of 1123, 1173 ... -
Investigation of wear and adhesion behaviors of borided steels
Kara, Rıza; Çolak, Fatih; Kayalı, Yusuf (Springer, 2016)In this study, AISI P20, H13 and D2 steels were pack borided at 900 and 950 °C for retention times of 2, 4 and 6 h. The boride layer thickness values changed depending on the chemical composition of the steels. The hardness ... -
Östemperlenmiş küresel grafitli dökme demirin mikro-aşınma davranışına östemperleme sıcaklığının etkisi
Kayalı, Yusuf; Yalçın, Yılmaz (Mayıs 2009)Bu çalısmada, östemperlenmis küresel grafitli dökme demirin (ÖKGDD) mikro-asınma davranısına östemperleme sıcaklıgının etkisi arastırılmıstır. 900 °C’de 60 dakika östenitlenen numuneler, 250, 300, 350 ve 400 ºC’lerde ... -
Ticari EKabor-II tozunun borlama işleminde tekrar kullanma sayısının araştırılması
Kayalı, Yusuf; Yalçın, Yılmaz; Taktak, Şükrü (2006)Bu çalışmada, ticari Ekabor II tozunun borlama işleminde tekrar kullanılabilirliği araştırılmıştır. Bu amaçla küresel grafitli dökme demir numuneler, daha önce borlanmış paslanmaz çelik kutu içerisinde Ekabor II tozuna ... -
Wear and corrosion behaviour of borided and nitrided m2 high speed steel
Kayalı, Yusuf (Journal of the Balkan Tribological Association, 2013)Boriding and nitriding lead to improved tribological and corrosive properties of M2 high speed steel. Boronising treatment was carried out in Ekabor-II powders at the process temperature of 950 degrees C for 4 h. Gas ...