Manufacturing Technology 2020, 20(4):534-537 | DOI: 10.21062/mft.2020.104

Changes in Steam Pipeline Properties after Long-term Exposure

Jaroslava Svobodova, Libor Benes, Jaroslav Brabec
Faculty of Mechanical Engineering, J. E. Purkyne University in Usti nad Labem. Pasteurova 3334/7, 400 01 Usti nad Labem. Czech Republic

The article deals with a practical problem solution of the steel 15 128 steam pipeline properties change after prolonged exposure. Steam pipelines made of steel are stressed for a long time at higher temperatures and pressures and under conditions that are not constant throughout the pipeline operation. During operation, it occurs in the degradation processes, which are accompanied by changes in structure and mechanical properties. In terms of mechanical properties, it is mainly important the impact strength. The paper examines steam pipeline after long-term exploitation and results from microstructure evaluation, fractographic analysis, and comparison of impact strength test results.

Keywords: Steam pipeline properties, Mechanical properties, Microstructure, Impact resistance

Received: May 1, 2020; Accepted: November 23, 2020; Prepublished online: November 23, 2020; Published: December 8, 2020  Show citation

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Svobodova J, Benes L, Brabec J. Changes in Steam Pipeline Properties after Long-term Exposure. Manufacturing Technology. 2020;20(4):534-537. doi: 10.21062/mft.2020.104.
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