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dc.contributor.authorKučera, Martin
dc.contributor.authorMartan, Jiří
dc.contributor.authorFranc, Aleš
dc.date.accessioned2018-11-21T11:00:11Z-
dc.date.available2018-11-21T11:00:11Z-
dc.date.issued2018
dc.identifier.issn0017-9310
dc.identifier.uri2-s2.0-85046820370
dc.identifier.urihttp://hdl.handle.net/11025/30705
dc.description.abstractČlánek je zaměřen popis nové měřicí metody pro časově rozlišené měření teploty na povrchu korozivzdorné oceli v nanosekundách. Jejím výsledkem je metoda měření, vyhodnocení, analýza probíhajících tepelných procesů a jejich korelace s korozní odolností.cs
dc.format8 s.
dc.format.mimetypeapplication/pdf
dc.language.isoenen
dc.publisherElsevieren
dc.rightsPlný text není přístupný.cs
dc.rights© Elsevieren
dc.subjectČasově rozlišené měření teploty, Laserové značenícs
dc.subjectNanosekundycs
dc.subjectKorozní odolnostcs
dc.subjectKorozivzdorná ocelcs
dc.titleČasově rozlišené měření teploty při laserovém značení korozivzdorné ocelics
dc.titleTime-resolved temperature measurement during laser marking of stainless steelen
dc.typečlánekcs
dc.typearticleen
dc.rights.accessclosedAccessen
dc.type.versionpublishedVersionen
dc.description.abstract-translatedA new measurement system was developed for time-resolved surface temperature measurement in nanosecond time scale. A study of surface temperatures reached by different parameters of laser marking and their correlation with resulting microstructure, phase composition and corrosion tests performed on marked samples is presented. The marking was done using a nanosecond pulsed fibre laser with variable pulse duration (from 9 to 200 ns), repetition frequency and pulse energy. Different phase composition and corrosion resistance were observed for visually similar marking results obtained by different laser parameters. This correlates well with maximum temperatures reached in the laser spot, which varied from less than 1100 °C for longer pulses to more than 1800 °C for shorter pulses. Melting of the surface with up to 4 µm thickness was observed for marking processes inducing high temperatures. The maximum temperatures in the pulse depend not only on pulse duration but also on previous pulses due to the heat accumulation effect. A temperature difference of up to 500 K was observed due to heat accumulation. From the results it can be concluded that combinations of longer pulse duration and higher repetition rate are the most suitable parameters for preserving corrosion resistance of stainless steel after laser marking.en
dc.subject.translatedTime-resolved temperature measurementen
dc.subject.translatedLaser markingen
dc.subject.translatedNanoseconden
dc.subject.translatedCorrosion resistanceen
dc.subject.translatedStainless steelen
dc.identifier.doi10.1016/j.ijheatmasstransfer.2018.04.137
dc.type.statusPeer-revieweden
dc.identifier.document-number440118600091
dc.identifier.obd43923394
dc.project.IDED2.1.00/03.0088/CENTEM - Centrum nových technologií a materiálůcs
dc.project.IDLO1402/CENTEM+cs
dc.project.IDSGS-2016-005/ Výzkum a vývoj pro inovace v oboru strojírenská technologie - technologie obrábění II.cs
Appears in Collections:Články / Articles (CT3)
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