Enhancement of-carbide spheroidization in Spring Steel by Low-Temperature Thermo-Mechanical Processing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23210%2F12%3A43917113" target="_blank" >RIV/49777513:23210/12:43917113 - 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

Enhancement of-carbide spheroidization in Spring Steel by Low-Temperature Thermo-Mechanical Processing

Popis výsledku v původním jazyce

Cold and warm formability of pearlite-ferrite steels can be improved by conventional soft annealing. This processing changes the lamellar morphology of pearlite to a globular one. The advantage of this microstructure is a significant reduction of potential defects which would be initiated at the sharp edges of the carbides as a result of localized stress concentration. Annealed structures possess low yield strength and excellent ductility. This ensures their good cold formability. The problems of thesetechnologies lie not only in long processing times, but also in high energy consumption which makes the final product quite expensive. The time necessary for cementite spheroidization can be shortened by unconventional heat treatment around Ac1 temperature combined with deformation applied at various processing stages. This processing method was utilized for spring steel 54SiCr with ferrite-pearlite original microstructure and lamellar pearlite morphology. The hardness of this structure

Název v anglickém jazyce

Enhancement of-carbide spheroidization in Spring Steel by Low-Temperature Thermo-Mechanical Processing

Popis výsledku anglicky

Cold and warm formability of pearlite-ferrite steels can be improved by conventional soft annealing. This processing changes the lamellar morphology of pearlite to a globular one. The advantage of this microstructure is a significant reduction of potential defects which would be initiated at the sharp edges of the carbides as a result of localized stress concentration. Annealed structures possess low yield strength and excellent ductility. This ensures their good cold formability. The problems of thesetechnologies lie not only in long processing times, but also in high energy consumption which makes the final product quite expensive. The time necessary for cementite spheroidization can be shortened by unconventional heat treatment around Ac1 temperature combined with deformation applied at various processing stages. This processing method was utilized for spring steel 54SiCr with ferrite-pearlite original microstructure and lamellar pearlite morphology. The hardness of this structure

Druh

D - Stať ve sborníku

CEP obor

JG - Hutnictví, kovové materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GAP107%2F10%2F2272" target="_blank" >GAP107/10/2272: Zrychlená sferoidizace karbidů a zjemnění zrna ocelí</a><br>

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název statě ve sborníku

COMAT 2012 : recent trends in structural materials

ISBN

978-80-87294-38-3

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

87-92

Název nakladatele

TANGER

Místo vydání

Ostrava

Místo konání akce

Plzeň

Datum konání akce

21. 11. 2012

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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