Characterization of rapidly solidified powder of high-speed steel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F09%3A00339990" target="_blank" >RIV/61388980:_____/09:00339990 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Characterization of rapidly solidified powder of high-speed steel

Popis výsledku v původním jazyce

Rapidly solidified particles of high-speed steel were classified into several granulometric fractions ranging from less than 25 mu m up to more than 160 mu m in diameter and studied by transmission and conversion electron Mossbauer spectrometry. The former was applied at 300, 77, and 5 K. Presence of magnetic and a non-magnetic crystallographic phase was observed. They were identified by X-ray diffraction as ferrite (bec-Fe) and austenite (fcc-Fe), respectively. In addition, M4C3 and M2C carbides were found. The magnetic phase diminishes in the bulk of the particles bigger than 63 mu m (transmission Mossbauer spectroscopy) and/or 80 mu m (X-ray diffraction). Its contribution is higher at the surface of the particles (conversion electron Mossbauer spectrometry). The origin of the non-magnetic phase is not changed even at 5 K. Reasonable agreement is achieved between Mossbauer and X-ray diffraction data as far as the fraction of Fe-containing phases is concerned.

Název v anglickém jazyce

Characterization of rapidly solidified powder of high-speed steel

Popis výsledku anglicky

Rapidly solidified particles of high-speed steel were classified into several granulometric fractions ranging from less than 25 mu m up to more than 160 mu m in diameter and studied by transmission and conversion electron Mossbauer spectrometry. The former was applied at 300, 77, and 5 K. Presence of magnetic and a non-magnetic crystallographic phase was observed. They were identified by X-ray diffraction as ferrite (bec-Fe) and austenite (fcc-Fe), respectively. In addition, M4C3 and M2C carbides were found. The magnetic phase diminishes in the bulk of the particles bigger than 63 mu m (transmission Mossbauer spectroscopy) and/or 80 mu m (X-ray diffraction). Its contribution is higher at the surface of the particles (conversion electron Mossbauer spectrometry). The origin of the non-magnetic phase is not changed even at 5 K. Reasonable agreement is achieved between Mossbauer and X-ray diffraction data as far as the fraction of Fe-containing phases is concerned.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GP203%2F07%2FP011" target="_blank" >GP203/07/P011: Studium xerogelů pomocí Mössbauerovy spektroskopie</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

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

Název periodika

Hyperfine Interactions

ISSN

0304-3843

e-ISSN

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Svazek periodika

190

Číslo periodika v rámci svazku

1-3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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