Abstract:The material under investigation was a welded joint made of 7CrMoVTiB10-10 (T24) steel after 36,000 hours of use at the temperature of 540°C and pressure of 27 MPa. The test samples for the study were taken from a membrane wall of a USC steam boiler. The research scope included: analysis of chemical composition of the original and the additional material (weld pass), investigation of the microstructure using optical microscopy and scanning electron microscopy, as well as tests of mechanical properties of the j… Show more
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