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

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 patter...

Full description

Saved in:
Bibliographic Details
Published in:Advances in materials science 2014-12, Vol.14 (4), p.28-39
Main Authors: Grzywna, P., Kukla, D.
Format: Article
Language:English
Subjects:
Electronic speckle pattern interferometry
fatigue
Ferritic stainless steels
Heat resistant steels
Heaters
Materials science
P91 steel
Pipelines
Static loads
Strain distribution
Structural steels
Tanks
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary: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.
ISSN:2083-4799
1730-2439
2083-4799
DOI:10.2478/adms-2014-0019