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The influence of stainless steels microstructure evolution on the mechanical properties of pressure installation elements

Abstract

In this paper results of FEM analysis performed for pipe and 90o elbow, made of super duplex stainless steel, after precipitation of sigma phase (),were presented. Heat treatment conditions simulate accidental overheating that can occur in nuclear installations after cooling circulation fails. For initial and modified microstructure tensile test was performed and numerical description of work hardening curves was done. Verification of FEM results was performed on the basis of empirical equations describing circumferential stresses in pipe. Stress distribution and deformation in both geometries reveals areas with highest risk of damage in pressure installation.

Details

Category:
Conference activity
Type:
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:
20th International Conference on Computer Methods in Mechanics: Short Papers
Language:
English
Publication year:
2013
Bibliographic description:
Szabracki P., Jaskólski M., Lipiński T., Kaczmarek-Kacprzak A.: The influence of stainless steels microstructure evolution on the mechanical properties of pressure installation elements// 20th International Conference on Computer Methods in Mechanics: Short Papers/ ed. T. Łodygowski; J. Rakowski; T. Garbowski; W. Sumelka Poznań: , 2013,
Verified by:
Gdańsk University of Technology

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