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Statements

Subject Item
n2:RIV%2F61989100%3A27710%2F11%3A86081112%21RIV12-MSM-27710___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Two high Mn alloys marked A (24Mn-1.2C-12Al) and B (28Mn-0.7C-8.6Al) were laboratory hot rolled. After rolling in material A coarser k-carbides were detected, sporadically on the austenite grains boundaries and more frequently on the ferrite ones. Reason was un-balanced Mn a C contents in superposition with the rolling deformations and finishing rolling temperature of 950°C. Hardness corresponded to 432HV30 on average. Using light microscope no carbides on grains boundaries were observed in B both after rolling and followed aging at 500°C/6´. After 6 minutes of aging the hardness of B was approx. by 9 % higher unlike the rolled state. The X-ray analysis nucleation of nano-size k-carbides confirmed. After aging of B at 500°C/30´ and/or 60´some coarser k-carbides were detected on ferrite-austenite boundaries and/or austenite-austenite interface. The hardness went up and corresponded to 343 and/or 350HV30. From the X-ray and microstructure analyses follows the 30´ and/or 60´ dwell supported both very fine and coarser k-carbides precipitation. The calculated stacking fault energies (SFE) of both materials complete all solution. The A showed by 9 mJ.m-2 higher SFE than the B. In the A alloy lower Mn content and higher Al one resulted to 2.8 times higher ferrite volume fraction in comparison with the B alloy Two high Mn alloys marked A (24Mn-1.2C-12Al) and B (28Mn-0.7C-8.6Al) were laboratory hot rolled. After rolling in material A coarser k-carbides were detected, sporadically on the austenite grains boundaries and more frequently on the ferrite ones. Reason was un-balanced Mn a C contents in superposition with the rolling deformations and finishing rolling temperature of 950°C. Hardness corresponded to 432HV30 on average. Using light microscope no carbides on grains boundaries were observed in B both after rolling and followed aging at 500°C/6´. After 6 minutes of aging the hardness of B was approx. by 9 % higher unlike the rolled state. The X-ray analysis nucleation of nano-size k-carbides confirmed. After aging of B at 500°C/30´ and/or 60´some coarser k-carbides were detected on ferrite-austenite boundaries and/or austenite-austenite interface. The hardness went up and corresponded to 343 and/or 350HV30. From the X-ray and microstructure analyses follows the 30´ and/or 60´ dwell supported both very fine and coarser k-carbides precipitation. The calculated stacking fault energies (SFE) of both materials complete all solution. The A showed by 9 mJ.m-2 higher SFE than the B. In the A alloy lower Mn content and higher Al one resulted to 2.8 times higher ferrite volume fraction in comparison with the B alloy
dcterms:title
K-CARBIDES PRECIPITATION IN TWO HIGH MANGANESE ALLOYS K-CARBIDES PRECIPITATION IN TWO HIGH MANGANESE ALLOYS
skos:prefLabel
K-CARBIDES PRECIPITATION IN TWO HIGH MANGANESE ALLOYS K-CARBIDES PRECIPITATION IN TWO HIGH MANGANESE ALLOYS
skos:notation
RIV/61989100:27710/11:86081112!RIV12-MSM-27710___
n16:predkladatel
n17:orjk%3A27710
n3:aktivita
n7:Z n7:P
n3:aktivity
P(ED0040/01/01), Z(MSM6198910015)
n3:cisloPeriodika
1
n3:dodaniDat
n9:2012
n3:domaciTvurceVysledku
n15:1912992
n3:druhVysledku
n12:J
n3:duvernostUdaju
n19:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
207275
n3:idVysledku
RIV/61989100:27710/11:86081112
n3:jazykVysledku
n10:eng
n3:klicovaSlova
high manganese alloy, aging, k-carbide, hardness
n3:klicoveSlovo
n6:high%20manganese%20alloy n6:hardness n6:aging n6:k-carbide
n3:kodStatuVydavatele
BA - Bosna a Hercegovina
n3:kontrolniKodProRIV
[5EDF91A112BE]
n3:nazevZdroje
Trends in the Development of Machinery and associated technology
n3:obor
n18:JG
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:projekt
n11:ED0040%2F01%2F01
n3:rokUplatneniVysledku
n9:2011
n3:svazekPeriodika
15
n3:tvurceVysledku
Filuš, František Mazancová, Eva Schindler, Ivo Cagala, Michal
n3:zamer
n13:MSM6198910015
s:issn
1840-4944
s:numberOfPages
4
n4:organizacniJednotka
27710