The evolution from natural gas usage to new technologies, such as the use of hydrogen fuel or electricity‐based heating, strongly influences oxidation stainless steel surface in reheating furnace. Thermogravimetric tests using different simulated combustion and induction conditions were performed for austenitic AISI 301 304, ferritic 444 grades. Simulated furnace atmospheres methods based on me...

We investigated the role of kainate receptors in the generation of theta oscillations using (S)-1-(2-amino-2-carboxyethyl)-3-(2-carboxythiophene-3-yl-methyl)pyrimidine-2,4-dione (UBP304), a novel, potent and highly selective antagonist of GLU(K5)-containing kainate receptors. EEG and single-unit recordings were made from the dorsal hippocampus of awake, freely moving rats trained to forage for ...

In this study, some mechanical properties of borided and unborided four steels were investigated. Boronizing of steels was performed by powder pack method at 1210 K for 4 h. The hardness of borides, boride layer thickness and room temperature tensile properties were measured and it was observed that hardness and tensile properties strongly depend on chemical composition of steels. In addition, ...

Yapılan çalışmada, AISI 304 paslanmaz sac malzemenin lazer kesim işleminde kesme parametrelerinin yüzey pürüzlülüğü, kerf genişliği ve çapak yüksekliği üzerine etkileri araştırılmıştır. Lazer iki farklı gaz basıncı (0.8 bar 1 bar), dört hızı (20 mm/sn, 24 28 mm/sn 32 mm/sn) frekans (3500 Hz, 4000 4500 Hz 5000 Hz) değerleri kullanılmıştır. Yüzey pürüzlülüğü ölçümleri, değişken parametreleriyle k...

Clinching is the manufacturing process of joining two or more metal sheets under high plastic deformation by form and force closure without thermal support auxiliary parts. Clinch connections are applicable to difficult-to-join hybrid material combinations, such as steel aluminum. Therefore, this technology interesting for application AISI 304 components, widely used a highly formable sheet mat...

AIM To evaluate the pitting and crevice corrosion characteristics of stainless steel (SS) and NiTi endodontic files in R-EDTA and NaOCl irrigating solutions. METHODOLOGY The corrosion behaviour of two H-files produced from different SS alloys (Mani, AISI 303 SS, Dentsply Maillefer, AISI 304 SS) and one file produced from NiTi alloy (Maillefer) was determined in R-EDTA and NaOCl irrigating sol...

In this study, the hardness and wear behaviour of carburized and boronized AISI 8620 steels have been studied. The boronizing treatment increased the hardness of AISI 8620 steels from 395 HV0.1 to a maximal 1610 HV0.1 compared to the carburized steels and also significantly improved its wear behaviour. From obtained results, it can be concluded that boronizing is very effective surface hardenin...

Diffusion bonding of hardmetals (WC-Co) to themselves or with other metallic material (mildsteel) has been evaluated in the present paper. Metallographic studies and mechanical tests have been used to determinate the influence of the bonding parameters (temperature, pressure and time) on the bond microstructure and strength. Different metallic interlayers applied in form of thick foils were use...