Title of article
Microstructural development during high temperature creep of 9% Cr steel
Author/Authors
Orlov?، نويسنده , , A. and Bur???k، نويسنده , , J. and Kucha?ov?، نويسنده , , K. and Skleni?ka، نويسنده , , V.، نويسنده ,
Pages
10
From page
39
To page
48
Abstract
The modified 9% Cr steel Type P91 is one of the materials presently employed in power plant pipework components. The detailed microstructural analysis of a trial melt produced by Vı́tkovice Steel, Ostrava is reported in the present work. The microstructural evolution during creep at 873 K was investigated by means of transmission electron microscopy and computer image analysis. Two main microstructural elements of tempered martensite ferritic steels, namely subgrains and secondary phase particles, are studied quantitatively. The influence of stress free ageing and the influence of stress under creep conditions on particle coarsening and subgrain growth is determined.
Keywords
Creep , microstructure , Subgrain/particle evolution , Steel type P91
Journal title
Astroparticle Physics
Record number
2053315
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