Mössbauer spectrometry of a novel steel LC200N with high corrosion resistance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F15%3A00445981" target="_blank" >RIV/61388980:_____/15:00445981 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/15:00235812 RIV/00216208:11320/15:10321690

Výsledek na webu

<a href="http://kf.elf.stuba.sk/apcom/proceedings/pdf/252_kmjec.pdf" target="_blank" >http://kf.elf.stuba.sk/apcom/proceedings/pdf/252_kmjec.pdf</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Mössbauer spectrometry of a novel steel LC200N with high corrosion resistance

Popis výsledku v původním jazyce

We present results of the study of structural features of a novel (introduced in 2013) highly corrosion resistant LC 200 N steel, possessing large and stable hardness up to relatively high temperatures and excellent wear resistance. LC200N is a perspective material which can be considered for possible applications in nuclear installations. We have employed Scanning Electron Microscopy/Energy Dispersive Spectrometry (SEM/EDS) and micro Xray fluorescence analysis (XRF) for sample characterisation and check of the element composition. The samples were investigated both in the as-prepared state, i.e. in form of round plates (thickness similar to 0.5 mm) after electro-erosive cutting from original rods as well as after polishing both surfaces. SEM/EDS unveiled regions with different Cr concentrations in the steel – bulk material with lower Cr concentration and precipitates with considerably higher Cr concentration. Magnetically active ferrite phases as well as non-magnetic austenite were identified in samples by Mössbauer spectrometry via probe 57Fe nuclei. Contribution of the austenite is only marginal in the non-hardened (annealed/soft) steel, but much higher in hardened one. The complex behaviour of magnetic phases governed by varying number of Cr atoms in the first nearest neighbour shells of the resonant Fe atoms was observed.

Název v anglickém jazyce

Mössbauer spectrometry of a novel steel LC200N with high corrosion resistance

Popis výsledku anglicky

We present results of the study of structural features of a novel (introduced in 2013) highly corrosion resistant LC 200 N steel, possessing large and stable hardness up to relatively high temperatures and excellent wear resistance. LC200N is a perspective material which can be considered for possible applications in nuclear installations. We have employed Scanning Electron Microscopy/Energy Dispersive Spectrometry (SEM/EDS) and micro Xray fluorescence analysis (XRF) for sample characterisation and check of the element composition. The samples were investigated both in the as-prepared state, i.e. in form of round plates (thickness similar to 0.5 mm) after electro-erosive cutting from original rods as well as after polishing both surfaces. SEM/EDS unveiled regions with different Cr concentrations in the steel – bulk material with lower Cr concentration and precipitates with considerably higher Cr concentration. Magnetically active ferrite phases as well as non-magnetic austenite were identified in samples by Mössbauer spectrometry via probe 57Fe nuclei. Contribution of the austenite is only marginal in the non-hardened (annealed/soft) steel, but much higher in hardened one. The complex behaviour of magnetic phases governed by varying number of Cr atoms in the first nearest neighbour shells of the resonant Fe atoms was observed.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GA14-12449S" target="_blank" >GA14-12449S: Vliv radiace na vybrané fyzikální vlastnosti perspektivních slitin pro jaderná zařízení</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of the 21th International conference on applied physics of condensed matter

ISBN

978-80-227-4373-0

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

252-257

Název nakladatele

SUT

Místo vydání

Bratislava

Místo konání akce

Štrbské Pleso

Datum konání akce

24. 6. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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