Coarsening behaviour of M23C6 carbides in creep-resistant steel exposed to high temperatures.

Abstract:

:High operating temperatures can have very deleterious effects on the long-term performance of high-Cr, creep-resistant steels used, for example, in the structural components of power plants. For the popular creep-resistant steel X20CrMoV12.1 we analysed the processes of carbide growth using a variety of analytical techniques: transmission electron microscopy (TEM) and diffraction (TED), scanning electron microscopy (SEM), and electron backscatter diffraction (EBSD). The evolution of the microstructure after different aging times was the basis for a much better understanding of the boundary-migration processes and the growth of the carbides. We present an explanation as to why some locations are preferential for this growth, and using EBSD we were able to define the proper orientational relationship between the carbides and the matrix.

journal_name

Sci Rep

journal_title

Scientific reports

authors

Godec M,Skobir Balantič DA

doi

10.1038/srep29734

subject

Has Abstract

pub_date

2016-07-13 00:00:00

pages

29734

issn

2045-2322

pii

srep29734

journal_volume

6

pub_type

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