Creep behavior of subzones in a CrMoV weldment characterized by the in-situ creep test with miniature specimens

Creep behavior of subzones in a CrMoV weldment characterized by the in-situ creep test with miniature specimens

The local creep properties of a CrMoV weldment were acquired by using miniature specimens of in-situ creep test. The creep performances of heat-affected zone (HAZ), weld pass metal in the welding direction (WP) and multiple weld passes through the thickness direction (MWP) were compared with each ot...

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Veröffentlicht in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2018-04, Vol.723, p.148-156
Hauptverfasser: Yang, Bin, Xuan, Fu-Zhen
Format: Artikel
Sprache:eng
Schlagworte:
Creep
Creep strength
Creep tests
Deformation
Heat
Heat affected zone
In-situ creep
Materials creep
Thickness measurement
Welding
Weldment
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Zusammenfassung:The local creep properties of a CrMoV weldment were acquired by using miniature specimens of in-situ creep test. The creep performances of heat-affected zone (HAZ), weld pass metal in the welding direction (WP) and multiple weld passes through the thickness direction (MWP) were compared with each other. It is shown that the magnitudes of creep strength order satisfy WP > MWP > HAZ, while the creep ductility of these three samples exhibit an inverse order: WP 
ISSN:0921-5093
1873-4936
DOI:10.1016/j.msea.2018.03.051