For the evaluation of the fraction of life consumed due to creep damage in martensitic materials, unlike what happens for ferritic materials for which there is a consolidated method, there are currently several usable methods. Therefore, laboratory tests and in-depth microstructural analyses were carried out on Grade 91 and 92 steels for the realization of a reference atlas on microstructural modification and precipitates state evolution during isothermal ageing and thermal creep.
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10.
CWA 15627 Small Punch Test Method, 2007.
11.
DutoitM.DeBruyckerE.HuysmansS. and SarensB., Life assessment of Grade 91 Components Based on Hardness and Creep Void Density (HAVOC Method), in: 3rd ECCC Conference, Roma,2014.
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FolgaraitP.CipollaL.Di GianfrancescoA.LombardiP. and TiberiS., Criteri avanzati di progettazione e indagine di acciai e componenti soggetti a creep per impianti USC, in: GIORNATA DI STUDIO SUL CREEP, ISPESL, Roma - 2 aprile,2009.
13.
GottiA., Italian Creep Group activity update for ECCC WG3A, in: ECCC WG3A Web Meeting, 14th April 2020.
14.
HaldJ.TassaO. and MateraS., Creep behavior and precipitate evolution of P92 after long-term creep, in: Proc. 4th International ECCC Conference Creep & Fractur Düsseldorf, Germany,2017.
15.
KlenkA. and MaileK.-H., Life Assessment of high temperature components on the basis of VGB guidelines, in: ETD New High Temperature Materials Seminar, 2008, London, OMMI 2008, Volume 5, Issue 3.
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MasuyamaF., Life Assessment issues for P91 components, in: ETD New High Temperature Materials Seminar, 30/11/2009, London.
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ParkerJ.D. and SiefertJ., Creep fracture in tempered martensitic steels, International Journal of Petrochemical Science & Engineering3(1) (2018).
18.
SalvoA. and MercklingG., Metallografia non distruttiva innovativa per la previsione della vita residua di materiali metallici, in: SAFAP,2018.
19.
ShibliA., Remaining life assessment issues in high Cr martensitic steels and development of new innovative tools for damage monitoring and integrity assessment, Transactions of the Indian Institute of Metals63 (2010), 339–348.
20.
ShibliA., Inspection and life assessment challenges for the high temp. Plant P91/P92 components, in: Parsons Conference, University of Portsmouth.
21.
ShibliA., Developments in the inspection, monitoring and life assessment of aberrant P91 and P92 component damage, in: 4th ECCC Conference, Dusseldorf,2017.
22.
Steel Grades 91 and 92 microstructure evolution atlas, Second Progress Semiannual Technical Report, RINA Technical Report No. 20984R Rev., 1st April 2020.
23.
TassaO. and MateraS., ECCC WG3A Long term creep tests for P92 steel at CSM (ECCC WG3A 2015).
24.
TontiA.LegaD.RamiresD.AllevaL.Di GianfrancescoA.MateraS. and AugugliaroG., Microstructure atlas and Life Assessment Tools, in: Proc. 3rd International ECCC Conference Creep & Fracture, Rome Italy,2014.
25.
UNI CEN ISO/TS 21432 “Prove non distruttive - Metodo di prova normalizzato per la determinazione delle tensioni residue mediante diffrazione a neutroni”.
26.
WilsonJ.W.AllenD.J.PeytonA.J. and ShibliA., Detection of creep degradation during pressure vessel testing using electromagnetic sensor technology, Materials at High Temperatures (2017).
27.
WilsonJ.W.AllenD.J.PeytonA.J.ShibliA. and DavisC., Detection of creep degradation during pressure vessel testing using electromagnetic sensor technology, Materials at High Temperatures34(5–6) ,448–457.
28.
YadavS.SondereggerB., Characterization and quantification of cavities in 9Cr martensitic steel for power plants, Materials Science and Technology (2015).
