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Vladyslav Kyrychok and Vasyl Torop

Performance of the Assembly of the Joints of Header to Steam Generator PGV-1000M, Technical Diagnostics and Non-destructive Control, No. 4 , 2014, 36-51 (in Russian). [4] DSTU-N B V.2.3-21:2008. Assessment of the Residual Strength of Magistral Pipelines with Defects (In Ukrainian). [5] Guidelines for Integrity and Lifetime Assessment of Components and Piping in WWER Nuclear Power Plants (VERLIFE), 2013. [6] ASME Boiler and Pressure Vessel Code, Section XI: Rules for In-service Inspection of Nuclear Power Plant Components. [7] Abaqus Scripting

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Radu Roşu, Viorel-Aurel Şerban, Alexandra Bucur, Mihaela Popescu and Dragoş Uţu

Caracterisation of Titanium Nitride Layers Deposited by Reactive Plasma Spraying

Forming and cutting tools are subjected to the intense wear solicitations. Usually, they are either subject to superficial heat treatments or are covered with various materials with high mechanical properties. In recent years, thermal spraying is used increasingly in engineering area because of the large range of materials that can be used for the coatings. Titanium nitride is a ceramic material with high hardness which is used to cover the cutting tools increasing their lifetime. The paper presents the results obtained after deposition of titanium nitride layers by reactive plasma spraying (RPS). As deposition material was used titanium powder and as substratum was used titanium alloy (Ti6Al4V). Macroscopic and microscopic (scanning electron microscopy) images of the deposited layers and the X ray diffraction of the coatings are presented. Demonstration program with layers deposited with thickness between 68,5 and 81,4 μm has been achieved and presented.

Open access

R. K. Krastev, S. Djoumaliisky and I. Borovanska

), No. 3, 42-46, (in Ger- man). [6] Zachariev, G., H.-V. Rudolph, R Krastev. Prediction of the Lifetime of a Bending Loaded GF/POM Composite in Retardation. In: Proc. of 9th Int. Conf. on Mechanics and Technology of Composite Mater., Sofia, CLPHCHM- BAS, 2000, 432-435. [7] Krastev, R. K., G. Zachariev, J. Hristova, J. Minster. Creep-rupture Strength Prediction of an Epoxy Composite under Tension. Mech Time-Depend Mater, 13 (2009), 207-214. [8] Krastev, R. K. A Contemporary Application of the Archimedes’ Method, In: Proc