Creep Resistance of Weld Joint of Tube Made of P92 Steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F10%3A%230000429" target="_blank" >RIV/47718684:_____/10:#0000429 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Creep Resistance of Weld Joint of Tube Made of P92 Steel
Original language description
One-side weld joint of W type was prepared from P92 type steel using GTAW & SMAW method. Creep testing of smooth cross-weld samples at temperatures ranging from 575 to 650 °C and at stresses from 70 to 240 MPa was carried out. Ruptured samples were undergone fractographic analysis and extended metallographic investigation including scanning and transmission electron microscopy. After creep tests at temperatures above 575 °C increase in size of secondary phases and cavities formation were evident. Voidswere concentrated in fine prior austenite grain heat affected zones. In addition, sporadic occurrence of individual cavities was found out in the base material and the weld metal after tests at 625 and 650 °C. During creep exposures at temperatures above600 °C Laves phase precipitated and their particles grew. Critical zone from the point of view of the creep failure is located in the fine prior austenite grain heat affected zone and in the overheated zone of the base material.
Czech name
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Czech description
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Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proc. of 19th International Metallurgical and Materials Conference METAL 2010
ISBN
978-80-87294-17-8
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
Tanger, spol. s r.o., Ostrava
Place of publication
Ostrava
Event location
Rožnov pod Radhoštěm
Event date
Jan 1, 2010
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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