Non-Destructive Characterization of Cold Rolled Low-Carbon Steels

Grum, Janez
Gür, Cemil Hakan
Yelbay, Hasan İlker
Sturm, Roman
Pechnik, B


Multifunctional properties of polymer foams and composites
Özkutlu Demirel, Merve; Bayram, Göknur; Department of Chemical Engineering (2020-9)
Polymer foams are low-density materials that consist of solid and gas phases and are used for insulation and transportation applications. This study aims to produce poly(methyl methacrylate) (PMMA) foams with low density and improved thermal and mechanical properties using syntactic foam production and supercritical CO2 (scCO2) foaming methods. Syntactic foams were produced dispersing 5, 10, and 15 wt.% hollow glass microspheres (HGMs) in the PMMA matrix. Using different HGM types based on their density, su...
Nonlinear compressible finite viscoleasticity of epoxy-based polymers
Dal, Hüsnü; Gromala, P. J.; Han, B. (2019-01-01)
Epoxy-based polymers are widely used in the semiconductor industry as thermal and/or electrical interfaces and as encapsulating material. In the automotive industry, epoxy-based molding compounds (EMCs) are often used to protect not only the single IC packages but also the entire electronic control units (ECUs) (or the power modules). The stress caused by the mismatch of the coefficient of thermal expansion (CTE) between EMC and adjacent materials is one of the major causes for premature failure. In the tem...
Mechanical, thermal and flammability properties of huntite hydromagnesite reinforced polyurethane elastomer
Güler, Türkan; Bayramlı, Erdal; Doğan, Mehmet Onur; Department of Polymer Science and Technology (2017)
Polyurethane elastomer (Thermoplastic Polyurethane-TPU) has desirable properties for many applications including footwear, packaging, protective coatings, cables, wires and tubes in the mainly automotive and construction industries. Huntite and Hydromagnesite are naturally occurring minerals that has been used as fire retardants commercially since the late 1980’s. The World’s largest reserve of this mineral has been found in Turkey. The main purpose of present work is to investigate the combustion and therm...
Damage relief of ion-irradiated Inconel alloy 718 via annealing
Fincher, Cole D.; Turman, Haley; French, Aaron; Chancey, Matthew; Gigax, Jonathan; Aydoğan Güngör, Eda; Zhao, Dexin; Yadav, Digvijay; Xie, Kelvin; Wang, Yongqiang; Borden, Mike; Shao, Lin; Maloy, S. A.; Pharr, Matt (Elsevier BV, 2020-09-01)
Inconel alloy 718 is a high-strength and corrosion resistant alloy that is commonly used as a beamline vacuum window. The accumulation of irradiation-induced damage substantially decreases the window's service lifetime, and replacing it engenders significant beamline downtime. With this application in mind, herein we examine whether post-irradiation annealing can alleviate irradiation-induced damage of Inconel alloy 718. Inconel alloy 718 was received in a solution annealed state. We then irradiated samples...
Non-destructive determination of residual stress state in steel weldments by Magnetic Barkhausen Noise technique
Yelbay, Hasan İlker; Çam, İbrahim; Gür, Cemil Hakan (2010-01-01)
The purpose of this study is non-destructive determination of residual stresses in the welded steel plates by Magnetic Barkhausen Noise (MBN) technique. A MBN-stress calibration set-up and a residual stress measurement system with scanning ability were developed. To control the accuracy and the effectiveness of the developed system and procedure, various MBN measurements were carried out. The MBN results were verified by the hole-drilling method. Microstructural investigation and hardness measurements were ...
Citation Formats
J. Grum, C. H. Gür, H. İ. Yelbay, R. Sturm, and B. Pechnik, “Non-Destructive Characterization of Cold Rolled Low-Carbon Steels,” İstanbul, Türkiye, 2018, p. 354, Accessed: 00, 2021. [Online]. Available: