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


== 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.

Document type: Article

== Full document ==
<pdf>Media:Draft_Content_732630238-beopen866-7492-document.pdf</pdf>


== Original document ==

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: [http://dx.doi.org/10.2478/adms-2014-0019 http://dx.doi.org/10.2478/adms-2014-0019] under the license cc-by-nc-nd

* [http://www.ippt.pan.pl/Repository/o2528.pdf http://www.ippt.pan.pl/Repository/o2528.pdf],
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: [https://academic.microsoft.com/#/detail/1538967109 https://academic.microsoft.com/#/detail/1538967109] under the license http://creativecommons.org/licenses/by-nc-nd/3.0/