Hardening of 100CrMnSi6-4 bearing steel after accelerated carbide spheroidisation and long-duration annealing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F15%3AN0000005" target="_blank" >RIV/26316919:_____/15:N0000005 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Hardening of 100CrMnSi6-4 bearing steel after accelerated carbide spheroidisation and long-duration annealing
Original language description
Spheroidising is an important and time-demanding stage of the treatment of bearing steels. Research into the so-called accelerated carbide spheroidisation showed that it was possible to spheroidise lamellar pearlite by thermomechanical or thermal treatment within several minutes. Globular carbide particles and the grain size of the matrix after accelerated carbide spheroidisation are significantly smaller than after the conventional long-duration soft annealing. The martensitic structure after hardening is therefore finer as well. This proves that the microstructure and properties of the final hardened product depend on prior annealing. Finer carbides in the structure enhance hardness and dissolve more readily during austenitisation. Consequently, lower quenching temperature can be used and the energy required for the quenching process is reduced. The risk of residual stresses and distortion can be mitigated as well. The present experiment was devoted to accelerated carbide spheroidisation and subsequent hardening. The microstructure and properties after the accelerated treatment were compared with those after conventional long-duration treatment.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/LO1412" target="_blank" >LO1412: Development of the West Bohemian Centre of Materials and Metallurgy</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
European Conference on Heat Treatment 2015, 22nd IFHTSE Congress
ISBN
978-88-98990-03-0
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
nestránkováno
Publisher name
Associazione Italiana di Metallurgia
Place of publication
Milano (Italy)
Event location
Venice, Italy
Event date
May 20, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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