THERMAL SCIENCE

International Scientific Journal

NUMERICAL ANALYSIS OF THERMAL STRESSES IN WELDED JOINT SMADE OF STEELS X20 AND X22

ABSTRACT
Stress calculation of steam pipeline is presented, focused on the welded joint. Numerical calculation was performed using the finite element method to obtain stress distribution in the welded joint made while replacing the valve chamber. Dissimilar materials were used, namely steel 10CrMoV9-10 according to EN 10216-2 for the valve chamber, the rest of steam pipeline was steel X20, whereas the transition piece material was steel X22. Residual stresses were calculated, in addition to design stresses, indicating critical regions and necessity for post-weld heat treatment.
KEYWORDS
PAPER SUBMITTED: 2013-12-11
PAPER REVISED: 2013-06-15
PAPER ACCEPTED: 2013-10-23
PUBLISHED ONLINE: 2014-07-06
DOI REFERENCE: https://doi.org/10.2298/TSCI131211178M
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2014, VOLUME 18, ISSUE Supplement 1, PAGES [S121 - S126]
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© 2019 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence