Work

Microstructure characterization and mechanical properties of austenitic Super 304H steel after operation

Year: 2024

Type: article

Abstract: The paper presents the results of testing the microstructure and mechanical properties of austenitic Super 304H steel after approximately 31,000 hours of operation at a temperature of 570°C. The microstructure analysis showed that the utilization of the tested steel contributed to the precipitation of numerous M23C6 carbides and individual sigma phase particles at grain boundaries, while dispersive ε_Cu and MX particles was observed inside the grains. At the grain boundaries, the precipitates sometimes formed a continuous mesh. The presence of numerous secondary phases resulted in higher than standard strength properties while maintaining the required plastic properties.

Source: International Journal of Pressure Vessels and Piping

DOI: 10.1016/j.ijpvp.2024.105294

Authors: H. Purzyńska, G. Golański, M. Sroka, A. Sasiela, A. Zieliński

Institutions: Łukasiewicz Research Network, Częstochowa University of Technology, Silesian University of Technology

Language: English

Topic: High Temperature Alloys and Creep

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,510

OpenAlex ID: W4401711415

FWCI: 1.482

Cites: 41

Cited by: 11

Related to: 10