What is it about?

Open access article. This paper deals with the comprehensive investigation carried out on the main steam gate valve parent material of welded joint, as a part of main steam pipeline, after 170.000 h of service (545 °C and 19 MPa). The obtained results showed that the microstructural degradation caused by long term operation had little effects on the hardness and strength of material, while the changes in impact toughness were observed.

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Comprehensive microstructural analysis included the examination of the microstructure on the surface and trough the wall thickness.

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This page is a summary of: Material Characterization of the Main Steam Gate Valve Made of X20CrMoV 12.1 Steel after Long Term Service, Procedia Materials Science, January 2014, Elsevier,
DOI: 10.1016/j.mspro.2014.06.244.
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