Výsledky vyhledávání - "S. Hadjiyiannis"

The effect of annealing duration at deposition temperature on the strength properties gradation of PVD films and on the wear behaviour of coated cemented carbide inserts

Autor: Georg Erkens, S. Hadjiyiannis, Konstantinos-Dionysios Bouzakis, Nikolaos Michailidis, Georgios Skordaris, I. Mirisidis, I. Wirth

Publikováno v: Surface and Coatings Technology. 200:4500-4510

Strength properties alterations may occur in the already deposited film material during the physical vapour deposition (PVD), induced by annealing, at the process temperature. Similar annealing mechanisms occur in PVD films during heat treatments, at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3746e9142d5c85e7eb1e2cb3d24fa277
https://doi.org/10.1016/j.surfcoat.2005.03.004

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Wear development on cemented carbide inserts, coated with variable film thickness in the cutting wedge region

Autor: Konstantinos-Dionysios Bouzakis, Georgios Skordaris, S. Hadjiyiannis, Nikolaos Michailidis, Georg Erkens, I. Mirisidis

Publikováno v: Surface and Coatings Technology. :636-643

During the physical vapour deposition (PVD) of coatings, the orientation of cemented carbides insert surfaces to the plasma flux direction affects the film thickness distribution on the rake and flank, which, in turn, might influence the wear propaga

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5967264fa18fd908d9f37c1bd3a5906f
https://doi.org/10.1016/j.surfcoat.2004.07.028

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The effect of coating thickness, mechanical strength and hardness properties on the milling performance of PVD coated cemented carbides inserts

Autor: Georg Erkens, Konstantinos-Dionysios Bouzakis, R. Cremer, S. Rambadt, Kyriakos Efstathiou, S. Hadjiyiannis, I. Wirth, Georgios Skordaris, Nikolaos Michailidis, I. Mirisidis, Eleni Pavlidou

Publikováno v: Surface and Coatings Technology. :657-664

The film deposition conditions on individual specimens in the vacuum chamber during a physical vapour deposition coating procedure cannot be considered as constant. Depending among others on the magnetic field distribution in the vacuum chamber as we

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6859d946150ef3567c68a0c8843460b8
https://doi.org/10.1016/j.surfcoat.2003.08.003

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Properties and performance of high aluminum containing (Ti,Al)N based supernitride coatings in innovative cutting applications

Autor: Konstantinos-Dionysios Bouzakis, I. Mirisidis, A. Asimakopoulos, Kyriakos Efstathiou, Georgios Skordaris, S. Kombogiannis, J. Anastopoulos, R. Cremer, Georg Erkens, T. Hamoudi, S. Hadjiyiannis

Publikováno v: Surface and Coatings Technology. :727-734

The development of new materials is always associated with the requirements of low cost manufacturing of parts consisting of these materials. In order to meet the corresponding demands, a range of developments has been brought forward in the area of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::67eebaff3176e13eb37b23ae94c3b641
https://doi.org/10.1016/j.surfcoat.2003.08.013

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A nanoindentation based determination of internal stress alterations in PVD films and their cemented carbides substrates induced by recoating procedures and their effect on the cutting performance

Autor: Konstantinos-Dionysios Bouzakis, S. Hadjiyiannis, J. Mirisidis, R. Cremer, Georg Erkens, M. Kleinjans, Fritz Klocke, Nikolaos Michailidis, A. Asimakopoulos, Georgios Skordaris

Publikováno v: Thin Solid Films. :264-271

Through the reconditioning of worn coated cutting tools by means of appropriate de-coating, micro-blasting and physical vapour deposition (PVD) recoating procedures, a production cost decreasing is intended. However, the cutting performance of recoat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e389dbdc07e7910f2719222b59048617
https://doi.org/10.1016/s0040-6090(03)01063-0

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The influence of the coating thickness on its strength properties and on the milling performance of PVD coated inserts

Autor: Konstantinos-Dionysios Bouzakis, Georgios Skordaris, Nikolaos Michailidis, J. Anastopoulos, I. Mirisidis, Georg Erkens, O. Knotek, I. Wirth, S. Rambadt, Kyriakos Efstathiou, R. Cremer, S. Hadjiyiannis

Publikováno v: Surface and Coatings Technology. :393-401

The evolution of the physical vapour deposition (PVD) process has contributed to the wide application of thin hard coatings on cutting tools. The film thickness can significantly affect the tool cutting performance. In the present paper, PVD (Ti46Al5

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4eab46ac39ef034342f9a3e47a666608
https://doi.org/10.1016/s0257-8972(03)00678-9

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Determination of coating residual stress alterations demonstrated in the case of annealed films and based on a FEM supported continuous simulation of the nanoindentation

Autor: Konstantinos-Dionysios Bouzakis, Georg Erkens, R. Cremer, J. Mirisidis, Georgios Skordaris, Nikolaos Michailidis, J. Anastopoulos, S. Hadjiyiannis

Publikováno v: Surface and Coatings Technology. :487-492

A method to determine coating residual stress alterations induced by various mechanical or heat treatments is introduced in the present paper. The developed procedure is based on a FEM supported continuous simulation of the nanoindentation, enabling

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5f98d656cf449fe2fe1c2df55b98dab6
https://doi.org/10.1016/s0257-8972(03)00587-5

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Optimisation of the cutting edge roundness and its manufacturing procedures of cemented carbide inserts, to improve their milling performance after a PVD coating deposition

Autor: Konstantinos-Dionysios Bouzakis, S. Kombogiannis, Nikolaos Michailidis, Kyriakos Efstathiou, S. Hadjiyiannis, Eleni Pavlidou, Georg Erkens, Georgios Skordaris, I. Wirth, S. Rambadt

Publikováno v: Surface and Coatings Technology. :625-630

The fatigue and wear behaviour of PVD coatings on cemented carbide inserts with various cutting edge radii are investigated experimentally and analytically in milling. The inserts with cutting edge radii from 8 up to 35 μm were manufactured by honin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9fb6a5d7d6d0615a33d9b2de6ce5bbde
https://doi.org/10.1016/s0257-8972(02)00687-4

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Supernitrides: A novel generation of PVD hardcoatings to meet the requirements of high demanding cutting applications

Autor: Konstantinos-Dionysios Bouzakis, S. Hadjiyiannis, Georgios Skordaris, T. Hamoudi, J. Mirisidis, R. Cremer, Kyriakos Efstathiou, S. Kombogiannis, A. Asimakopoulos, J. Anastopoulos, Georg Erkens

Publikováno v: CIRP Annals. 52:65-68

Based on a unique sputtering technology using highly ionized plasmas a novel grade of high performance hard coatings, the Supernitrides with macro free morphology were developed. Within the scope of the investigations described, a characteristic (Ti,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::bea60fd873610aa9dff71bf7aed43453
https://doi.org/10.1016/s0007-8506(07)60532-0

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Continuous FEM simulation of the nanoindentation

Autor: S. Hadjiyiannis, Nikolaos Michailidis, G. Skordaris, Georg Erkens, Konstantinos-Dionysios Bouzakis

Publikováno v: Zeitschrift für Metallkunde. 93:862-869

The precise knowledge of materials mechanical properties is always a core issue in every technical application. Through a developed finite elements method (FEM) continuous simulation of the nanoindentation, the applied force course versus the penetra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dddad4631df151a56c0378b746d0a44d
https://doi.org/10.3139/146.020862

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