Creep Testing and Microstructure of Weld Joint in the Pipe Made of P92 Steel

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47718684%3A_____%2F09%3A%230000363" target="_blank" >RIV/47718684:_____/09:#0000363 - 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 Testing and Microstructure of Weld Joint in the Pipe 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. Voids were concentrated in fine prior austenite grain heat affected zones, where fracture occurred. 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 above 600 °C Laves phase precipitated.
Czech name
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Czech description
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Project
<a href="/en/project/OC09041" target="_blank" >OC09041: Microstructural investigation of welds manufactured from advanced creep resisting materials for steam power plants</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
IIW International Conference on Advances in Welding and Allied Technologies
ISBN
978-981-08-3259-9
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
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Publisher name
Singapore Welding Society
Place of publication
Songapore
Event location
Singapore
Event date
Jan 1, 2009
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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