Dillatometric Study of 100CrMnSi6-4 Bearing Steel Hardening from Different Quenching Temperatures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F15%3AN0000003" target="_blank" >RIV/26316919:_____/15:N0000003 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/26316919:_____/15:N0000002

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Dillatometric Study of 100CrMnSi6-4 Bearing Steel Hardening from Different Quenching Temperatures

Popis výsledku v původním jazyce

Accelerated carbide spheroidisation enables significant shortening of time necessary for formation of steel microstructure consisting of ferritic matrix and globular carbides. Research of accelerated spheroidisation showed that it is possible to spheroidise lamellar pearlite within several minutes. Carbide particles and the grain size of the matrix are significantly smaller after accelerated carbide spheroidisation process in comparison with conventional soft annealing. This fact ensures finer structure after hardening and this shows that the microstructure and properties of final hardened product are dependent on previous annealing. Finer carbides in structure enhance hardness and facilitates carbide dissolution during austenitization. This effect enables quenching temperature lowering and it reduces the energy demand of the quenching process and mitigates the risk of residual stresses and distortion. Steel 100CrMnSi6-4 microstructure, properties and Ms temperature are compared in view of various kinds of spheroidisation and quenching temperature by dilatometric measurement.

Název v anglickém jazyce

Dillatometric Study of 100CrMnSi6-4 Bearing Steel Hardening from Different Quenching Temperatures

Popis výsledku anglicky

Accelerated carbide spheroidisation enables significant shortening of time necessary for formation of steel microstructure consisting of ferritic matrix and globular carbides. Research of accelerated spheroidisation showed that it is possible to spheroidise lamellar pearlite within several minutes. Carbide particles and the grain size of the matrix are significantly smaller after accelerated carbide spheroidisation process in comparison with conventional soft annealing. This fact ensures finer structure after hardening and this shows that the microstructure and properties of final hardened product are dependent on previous annealing. Finer carbides in structure enhance hardness and facilitates carbide dissolution during austenitization. This effect enables quenching temperature lowering and it reduces the energy demand of the quenching process and mitigates the risk of residual stresses and distortion. Steel 100CrMnSi6-4 microstructure, properties and Ms temperature are compared in view of various kinds of spheroidisation and quenching temperature by dilatometric measurement.

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/LO1412" target="_blank" >LO1412: Rozvoj Západočeského materiálově metalurgického Centra</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

2015 INTERNATIONAL CONFERENCE ON MATERIALS AND ENGINEERING AND INDUSTRIAL APPLICATIONS (MEIA 2015)

ISBN

978-1-60595-285-7

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

69-74

Název nakladatele

DEStech Publications, Inc.

Místo vydání

LANCASTER (USA)

Místo konání akce

Hong Kong, CHINA

Datum konání akce

20. 9. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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