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Statements

Subject Item
n2:RIV%2F61989100%3A27230%2F11%3A86080231%21RIV12-MSM-27230___
rdf:type
n5:Vysledek skos:Concept
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
Properties of Modified Chromium and Low Alloy Cr-Mo-V Steel’s Heterogeneous Weld Joint after Long Term Creep Exposure Properties of Modified Chromium and Low Alloy Cr-Mo-V Steel’s Heterogeneous Weld Joint after Long Term Creep Exposure
skos:prefLabel
Properties of Modified Chromium and Low Alloy Cr-Mo-V Steel’s Heterogeneous Weld Joint after Long Term Creep Exposure Properties of Modified Chromium and Low Alloy Cr-Mo-V Steel’s Heterogeneous Weld Joint after Long Term Creep Exposure
skos:notation
RIV/61989100:27230/11:86080231!RIV12-MSM-27230___
n5:predkladatel
n18:orjk%3A27230
n3:aktivita
n10:S
n3:aktivity
S
n3:dodaniDat
n19:2012
n3:domaciTvurceVysledku
n16:3591395 n16:5419298
n3:druhVysledku
n15:D
n3:duvernostUdaju
n7:S
n3:entitaPredkladatele
n14:predkladatel
n3:idSjednocenehoVysledku
224676
n3:idVysledku
RIV/61989100:27230/11:86080231
n3:jazykVysledku
n20:eng
n3:klicovaSlova
Interparticle Spacing; Microstructure; Weld Joint; Creep Rupture Strength; Creep Resistant Steels
n3:klicoveSlovo
n4:Interparticle%20Spacing n4:Creep%20Rupture%20Strength n4:Microstructure n4:Weld%20Joint n4:Creep%20Resistant%20Steels
n3:kontrolniKodProRIV
[F3C39180C559]
n3:mistoKonaniAkce
Antalya
n3:mistoVydani
Instanbul
n3:nazevZdroje
Proceedings of the International Congress on Advances in Welding Science & Technology for Construction, Energy & Transportation Systems (AWST-2011)
n3:obor
n17:JG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
3
n3:rokUplatneniVysledku
n19:2011
n3:tvurceVysledku
Koukal, Jaroslav Schwarz, Drahomír Sondel, Martin
n3:typAkce
n13:WRD
n3:zahajeniAkce
2011-10-24+02:00
s:numberOfPages
5
n12:hasPublisher
Ben Yazarim Yayinlari
n21:isbn
978-605-4424-23-8
n11:organizacniJednotka
27230