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Statements

Subject Item
n2:RIV%2F61989100%3A27230%2F12%3A86083286%21RIV13-MSM-27230___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
The fundamental knowledge of structural evolution, strengthening and degradation processes occurring during creep exposure is a prerequisite for successful development of ferritic steels with higher creep resistance. Weld joints on tubes from the creep resistance Cr-Mo-V low alloy and P91 steel have been studied to characterize the changes in microstructure that occur during long term creep exposure at 575°C for up to approximately 95.000 hours. The metallographic study included transmission microscopy investigation and quantitative evaluation has been carried out in order to determine variations in the size and distribution of minor phase particles and subgrain structures in the base material, heat affected zones and weld metal. Precipitation strengthening of the creep resistant ferritic steels depends on the interparticle spacing (IPS) of secondary phases. Particular M23C6 and MX particles have been defined for more correct information about precipitate dispersion and mainly for effective interparticle spacing calculation. The aim of the present paper is to describe the microstructural processes and the most important structural changes occurring during long term creep exposure at elevated temperatures. The fundamental knowledge of structural evolution, strengthening and degradation processes occurring during creep exposure is a prerequisite for successful development of ferritic steels with higher creep resistance. Weld joints on tubes from the creep resistance Cr-Mo-V low alloy and P91 steel have been studied to characterize the changes in microstructure that occur during long term creep exposure at 575°C for up to approximately 95.000 hours. The metallographic study included transmission microscopy investigation and quantitative evaluation has been carried out in order to determine variations in the size and distribution of minor phase particles and subgrain structures in the base material, heat affected zones and weld metal. Precipitation strengthening of the creep resistant ferritic steels depends on the interparticle spacing (IPS) of secondary phases. Particular M23C6 and MX particles have been defined for more correct information about precipitate dispersion and mainly for effective interparticle spacing calculation. The aim of the present paper is to describe the microstructural processes and the most important structural changes occurring during long term creep exposure at elevated temperatures.
dcterms:title
Microstructure and Mechanical Properties of Modified Chromium and Low Alloy CrMoV Steel’s Weld Joints after Long Term Creep Exposure Microstructure and Mechanical Properties of Modified Chromium and Low Alloy CrMoV Steel’s Weld Joints after Long Term Creep Exposure
skos:prefLabel
Microstructure and Mechanical Properties of Modified Chromium and Low Alloy CrMoV Steel’s Weld Joints after Long Term Creep Exposure Microstructure and Mechanical Properties of Modified Chromium and Low Alloy CrMoV Steel’s Weld Joints after Long Term Creep Exposure
skos:notation
RIV/61989100:27230/12:86083286!RIV13-MSM-27230___
n17:predkladatel
n18:orjk%3A27230
n3:aktivita
n8:S
n3:aktivity
S
n3:dodaniDat
n5:2013
n3:domaciTvurceVysledku
n19:3591395 n19:5419298
n3:druhVysledku
n13:D
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n7:predkladatel
n3:idSjednocenehoVysledku
150416
n3:idVysledku
RIV/61989100:27230/12:86083286
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Interparticle Spacing; Long Term Creep Exposure; Weld Joints; Low Alloy Steels; Modified Chromium Steels; Mechanical Properties; Microstructure
n3:klicoveSlovo
n4:Modified%20Chromium%20Steels n4:Long%20Term%20Creep%20Exposure n4:Interparticle%20Spacing n4:Mechanical%20Properties n4:Low%20Alloy%20Steels n4:Weld%20Joints n4:Microstructure
n3:kontrolniKodProRIV
[8BA0762E8B2C]
n3:mistoKonaniAkce
Kjóto
n3:mistoVydani
Sendai
n3:nazevZdroje
Creep 2012 : Creep and Fracture of Engineering Materials and Structures : proceedings of the 12th International Conference on ... (JIMIS 11), held at Kyoto TERRSA, Kyoto, Japan, May 27-31, 2012
n3:obor
n12:JG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n5:2012
n3:tvurceVysledku
Schwarz, Drahomír Foldyna, Václav Koukal, Jaroslav Sondel, Martin
n3:typAkce
n6:WRD
n3:zahajeniAkce
2012-05-27+02:00
s:numberOfPages
4
n11:hasPublisher
The Japan Institute of Metals
n9:isbn
978-4-88903-407-3
n14:organizacniJednotka
27230