<abstract xmlns="http://www.w3.org/1999/xhtml"><p> The goal of the research was to evaluate the change of displacement/strain phases in the P91 steel under static load conditions. Undertaken tests were aimed at estimation and analysis of the impact of the material state, which was subjected to loading conditions, on the distribution of stress pattern using ESPI system. Specimen made of high temperature creep resistant steel X10CrMoVNb9-1 (P91) used as a construction material for boiler steam feed heaters, vapor tanks, pressure vessels and vapor pipelines, is used in the service conditions of temperature range up of 650°C. Test samples were taken from two P91 steel pipes. One sample came from a segment of a pipeline transporting fresh vapor in time 80 000 h, under the pressure of 8.4 MPa and temperature 540 °C. The second sample was the same material but in the delivery state.</p></abstract>

The goal of the research was to evaluate the change of displacement/strain phases in the P91 steel under static load conditions. Undertaken tests were aimed at estimation and analysis of the impact of the material state, which was subjected to loading conditions, on the distribution of stress pattern using ESPI system. Specimen made of high temperature creep resistant steel X10CrMoVNb9-1 (P91) used as a construction material for boiler steam feed heaters, vapor tanks, pressure vessels and vapor pipelines, is used in the service conditions of temperature range up of 650°C. Test samples were taken from two P91 steel pipes. One sample came from a segment of a pipeline transporting fresh vapor in time 80 000 h, under the pressure of 8.4 MPa and temperature 540 °C. The second sample was the same material but in the delivery state.

Evaluation of Strain Distribution for the P91 Steel under Static Load Using Espi System

Institute of Fundamental Technological Research Polish Academy of Sciences, Department of Strength of Materials, Warsaw, Poland

Advances in Materials Science

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The goal of the research was to evaluate the change of displacement/strain phases in the P91 steel under static load conditions. Undertaken tests were aimed at...

Evaluation of Strain Distribution for the P91 Steel under Static Load Using Espi System

Published Online: Dec 20, 2014

Page range: 28 - 39

DOI: https://doi.org/10.2478/adms-2014-0019

Keywords
fatigue, electronic speckle pattern interferometry, P91 steel

© by P. Grzywna

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Evaluation of Strain Distribution for the P91 Steel under Static Load Using Espi System

Published Online: Dec 20, 2014

Page range: 28 - 39

DOI: https://doi.org/10.2478/adms-2014-0019

Keywordsfatigue, electronic speckle pattern interferometry, P91 steel

© by P. Grzywna

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
fatigue, electronic speckle pattern interferometry, P91 steel