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Statements

Subject Item
n2:RIV%2F26316919%3A_____%2F12%3A%230000337%21RIV13-GA0-26316919
rdf:type
skos:Concept n9:Vysledek
rdfs:seeAlso
http://www.scopus.com/inward/record.url?eid=2-s2.0-84869045178&partnerID=40&md5=3f587677830f4f806ca8686db251809d
dcterms:description
Processing of high-carbon chromium steels often includes an annealing stage, at which initial lamellar pearlite should be transformed into ferrite with globular carbides. The purpose of such treatment is to enhance machinability of the material or to condition the microstructure for subsequent hardening. Carbide spheroidising occurs through diffusion, which is a long-term and energy-demanding process. The holding times, sometimes up to tens of hours make soft annealing one of the most expensive heat treatment processes. The new process was newly designed at the company COMTES FHT shortens carbide spheroidising several times and therefore delivers considerable time and cost savings. The high-carbon chromium steels are not fit for further working unless soft-annealed. The purpose of this annealing process is to obtain globular carbides uniformly distributed in the matrix and to achieve overall softening. The present paper explores the effect of the newly-designed thermal schedules on the carbide spheroidisation behaviour, on the decrease in hardness in bearing steel grade 100CrMn6 and on processing times. Processing of high-carbon chromium steels often includes an annealing stage, at which initial lamellar pearlite should be transformed into ferrite with globular carbides. The purpose of such treatment is to enhance machinability of the material or to condition the microstructure for subsequent hardening. Carbide spheroidising occurs through diffusion, which is a long-term and energy-demanding process. The holding times, sometimes up to tens of hours make soft annealing one of the most expensive heat treatment processes. The new process was newly designed at the company COMTES FHT shortens carbide spheroidising several times and therefore delivers considerable time and cost savings. The high-carbon chromium steels are not fit for further working unless soft-annealed. The purpose of this annealing process is to obtain globular carbides uniformly distributed in the matrix and to achieve overall softening. The present paper explores the effect of the newly-designed thermal schedules on the carbide spheroidisation behaviour, on the decrease in hardness in bearing steel grade 100CrMn6 and on processing times.
dcterms:title
Modification of microstructure of 100CrMn6 steel by accelerated carbide spheroidisation process Modification of microstructure of 100CrMn6 steel by accelerated carbide spheroidisation process
skos:prefLabel
Modification of microstructure of 100CrMn6 steel by accelerated carbide spheroidisation process Modification of microstructure of 100CrMn6 steel by accelerated carbide spheroidisation process
skos:notation
RIV/26316919:_____/12:#0000337!RIV13-GA0-26316919
n9:predkladatel
n10:ico%3A26316919
n3:aktivita
n21:P
n3:aktivity
P(GAP107/10/2272)
n3:dodaniDat
n14:2013
n3:domaciTvurceVysledku
n12:6882072 n12:6585833 n12:6226302
n3:druhVysledku
n18:D
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
151371
n3:idVysledku
RIV/26316919:_____/12:#0000337
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Accelerated spheroidisation, ASR, High-carbon chromium steel, Soft annealing
n3:klicoveSlovo
n8:High-carbon%20chromium%20steel n8:ASR n8:Soft%20annealing n8:Accelerated%20spheroidisation
n3:kontrolniKodProRIV
[F277D788342D]
n3:mistoKonaniAkce
Pittsburgh, USA
n3:mistoVydani
Pittsburgh, USA
n3:nazevZdroje
AIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'12, Materials Science and Technology 2012
n3:obor
n16:JG
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
3
n3:projekt
n4:GAP107%2F10%2F2272
n3:rokUplatneniVysledku
n14:2012
n3:tvurceVysledku
Hauserová, Daniela Nový, Zbyšek Dlouhý, Jaromír
n3:typAkce
n22:WRD
n3:zahajeniAkce
2012-10-07+02:00
s:numberOfPages
7
n13:hasPublisher
2012 AIST Steel Properties and Applications Conference
n20:isbn
978-1-935117-27-8