Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades

The primary creep of the parent metal (α), inter-critical (α+γ), and coarse-grained (γ) microstructures of simulated weld heat-affected zone (HAZ) for the steels X20CrMoV121 and X10CrMoVNb91, aged for 4 320 hours (6 months) at 750 °C and 17 520 hours (2 years) at 650 °C was analyzed. The time and cr...

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Main Authors: F. Kafexhiu, F. Vodopivec, B. Podgornik
Format: Article
Language:English
Published: Croatian Metallurgical Society 2017-01-01
Series:Metalurgija
Subjects:
Online Access:http://hrcak.srce.hr/file/266737
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author F. Kafexhiu
F. Vodopivec
B. Podgornik
author_facet F. Kafexhiu
F. Vodopivec
B. Podgornik
author_sort F. Kafexhiu
collection DOAJ
description The primary creep of the parent metal (α), inter-critical (α+γ), and coarse-grained (γ) microstructures of simulated weld heat-affected zone (HAZ) for the steels X20CrMoV121 and X10CrMoVNb91, aged for 4 320 hours (6 months) at 750 °C and 17 520 hours (2 years) at 650 °C was analyzed. The time and creep strain at the transition point from primary to secondary creep were found to vary strongly between the parent metal and two simulated HAZ microstructures, especially after ageing at 750 °C.
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spelling doaj.art-56b84a83d6314d2a8c1bc534c58900e62022-12-21T20:44:38ZengCroatian Metallurgical SocietyMetalurgija0543-58461334-25762017-01-01563-4353356Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel gradesF. Kafexhiu0F. Vodopivec1B. Podgornik2Institute of metals and technology, Ljubljana, SloveniaInstitute of metals and technology, Ljubljana, SloveniaInstitute of metals and technology, Ljubljana, SloveniaThe primary creep of the parent metal (α), inter-critical (α+γ), and coarse-grained (γ) microstructures of simulated weld heat-affected zone (HAZ) for the steels X20CrMoV121 and X10CrMoVNb91, aged for 4 320 hours (6 months) at 750 °C and 17 520 hours (2 years) at 650 °C was analyzed. The time and creep strain at the transition point from primary to secondary creep were found to vary strongly between the parent metal and two simulated HAZ microstructures, especially after ageing at 750 °C.http://hrcak.srce.hr/file/2667379-12% Cr steelsageingmicrostructuresimulated HAZprimary creep
spellingShingle F. Kafexhiu
F. Vodopivec
B. Podgornik
Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades
Metalurgija
9-12% Cr steels
ageing
microstructure
simulated HAZ
primary creep
title Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades
title_full Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades
title_fullStr Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades
title_full_unstemmed Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades
title_short Analysis of primary creep in simulated heat affected zone (HAZ) of two 9 - 12% Cr Steel grades
title_sort analysis of primary creep in simulated heat affected zone haz of two 9 12 cr steel grades
topic 9-12% Cr steels
ageing
microstructure
simulated HAZ
primary creep
url http://hrcak.srce.hr/file/266737
work_keys_str_mv AT fkafexhiu analysisofprimarycreepinsimulatedheataffectedzonehazoftwo912crsteelgrades
AT fvodopivec analysisofprimarycreepinsimulatedheataffectedzonehazoftwo912crsteelgrades
AT bpodgornik analysisofprimarycreepinsimulatedheataffectedzonehazoftwo912crsteelgrades