Microstructure and Properties of Hardened 100CrMnSi6-4 Bearing Steel after Accelerated Carbide Spheroidisation and Long-duration Annealing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F14%3A%230000669" target="_blank" >RIV/26316919:_____/14:#0000669 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.astm.org/doi:10.1520/STP158020140087" target="_blank" >http://www.astm.org/doi:10.1520/STP158020140087</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1520/STP158020140087" target="_blank" >10.1520/STP158020140087</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Microstructure and Properties of Hardened 100CrMnSi6-4 Bearing Steel after Accelerated Carbide Spheroidisation and Long-duration Annealing

Popis výsledku v původním jazyce

The experimental programme of accelerated carbide spheroidization deals with significant shortening of the time necessary for producing a steel microstructure consisting of ferritic matrix and globular carbides. The conventional way to obtain such structure is long-duration soft annealing after hot forming of the semi-product. Research of accelerated carbide spheroidization showed that it is possible to spheroidise lamellar pearlite by thermomechanical or thermal treatment within several minutes. The thermomechanical treatment consists of forming at temperatures around the Ac1 temperature, whereas the thermal treatment is based on temperature cycling around the Ac1 temperature. From the morphological point of view, accelerated carbide spheroidization produces microstructures very similar to those resulting from conventional soft annealing, but the carbide particles and the grain size of the matrix are significantly smaller. Finer microstructure results in higher hardness than in conven

Název v anglickém jazyce

Microstructure and Properties of Hardened 100CrMnSi6-4 Bearing Steel after Accelerated Carbide Spheroidisation and Long-duration Annealing

Popis výsledku anglicky

The experimental programme of accelerated carbide spheroidization deals with significant shortening of the time necessary for producing a steel microstructure consisting of ferritic matrix and globular carbides. The conventional way to obtain such structure is long-duration soft annealing after hot forming of the semi-product. Research of accelerated carbide spheroidization showed that it is possible to spheroidise lamellar pearlite by thermomechanical or thermal treatment within several minutes. The thermomechanical treatment consists of forming at temperatures around the Ac1 temperature, whereas the thermal treatment is based on temperature cycling around the Ac1 temperature. From the morphological point of view, accelerated carbide spheroidization produces microstructures very similar to those resulting from conventional soft annealing, but the carbide particles and the grain size of the matrix are significantly smaller. Finer microstructure results in higher hardness than in conven

Druh

D - Stať ve sborníku

CEP obor

JP - Průmyslové procesy a zpracování

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název statě ve sborníku

Bearing Steel Technologies: 10th Volume, Advances in Steel Technologies for Rolling Bearings, STP 1580

ISBN

978-0-8031-7605-8

ISSN

2160-2050

e-ISSN

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Počet stran výsledku

21

Strana od-do

389-409

Název nakladatele

ASTM International

Místo vydání

West Conshohocken, USA

Místo konání akce

Toronto, Ontario, Canada

Datum konání akce

6. 5. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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