About: Non-Destructive Inspection of Surface Integrity in Milled Turbine Blades of Inconel 738LC

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Nickel super-alloys are widely used in aerospace as material for turbine blades. Unfortunately, their machining is difficult since mechanical hardening and, consequently, extreme tool wear occur. Casting can no longer meet the requirements for precision, hence, the castings are being ground or milled. In this contribution, a quality check of the milled surface by several surface integrity parameters is proposed with respect to the surface structural inhomogeneities caused by mutual effect of plastic deformations and thermal fields during the cutting process. Castings from Inconel 738LC were milled with cutting conditions chosen by Design-Of-Experiments method and the resulting surfaces were assessed by non-destructive X-ray diffraction methods in several areas corresponding to various cutter orientation and work-piece angle. Surface integrity was described by macroscopic residual stresses, microstrains, grain sizes and phase composition. Mostly, favourable compressive surface residual stresses were observed in the cutting direction, grain sizes were distinctively smaller when the tool axis was perpendicular to the machined surface. Nickel super-alloys are widely used in aerospace as material for turbine blades. Unfortunately, their machining is difficult since mechanical hardening and, consequently, extreme tool wear occur. Casting can no longer meet the requirements for precision, hence, the castings are being ground or milled. In this contribution, a quality check of the milled surface by several surface integrity parameters is proposed with respect to the surface structural inhomogeneities caused by mutual effect of plastic deformations and thermal fields during the cutting process. Castings from Inconel 738LC were milled with cutting conditions chosen by Design-Of-Experiments method and the resulting surfaces were assessed by non-destructive X-ray diffraction methods in several areas corresponding to various cutter orientation and work-piece angle. Surface integrity was described by macroscopic residual stresses, microstrains, grain sizes and phase composition. Mostly, favourable compressive surface residual stresses were observed in the cutting direction, grain sizes were distinctively smaller when the tool axis was perpendicular to the machined surface. (en)
Title	Non-Destructive Inspection of Surface Integrity in Milled Turbine Blades of Inconel 738LC Non-Destructive Inspection of Surface Integrity in Milled Turbine Blades of Inconel 738LC (en)
skos:prefLabel	Non-Destructive Inspection of Surface Integrity in Milled Turbine Blades of Inconel 738LC Non-Destructive Inspection of Surface Integrity in Milled Turbine Blades of Inconel 738LC (en)
skos:notation	RIV/68407700:21340/14:00215662!RIV15-TA0-21340___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(TA02011031)
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kolařík, Kamil Ganev, Nikolaj Čapek, Jiří Pala, Zdenek
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	32743
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/14:00215662
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	residual stresses; milling; geometrical product specification; nickel super-alloys; turbine blades (en)
http://linked.open.../riv/klicoveSlovo	residual stresses nickel super-alloys turbine blades geometrical product specification milling
http://linked.open...ontrolniKodProRIV	[38FAAE0E45F8]
http://linked.open...v/mistoKonaniAkce	Litoměřice
http://linked.open...i/riv/mistoVydani	Uetikon-Zurich
http://linked.open...i/riv/nazevZdroje	Applied Mechanics and Materials
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Surface integrity research after impementing new progessive techniques of machining using 4 and 5 axis milling machining centers.
http://linked.open...UplatneniVysledku	2014
http://linked.open...iv/tvurceVysledku	Beránek, Libor Ganev, Nikolaj Kolařík, Kamil Pala, Zdeněk Vyskočil, Z. Čapek, Jiří
http://linked.open...vavai/riv/typAkce	EUR - Evropská
http://linked.open...ain/vavai/riv/wos	000335709900003
http://linked.open.../riv/zahajeniAkce	2013-06-11 (xsd:date)
issn	1660-9336
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.4028/www.scientific.net/AMM.486.9
http://purl.org/ne...btex#hasPublisher	Trans Tech Publications
https://schema.org/isbn	978-3-03785-977-3
http://localhost/t...ganizacniJednotka	21340

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