Texture and substructure development during post-dynamic softening in Ni-30%Fe austenite

Beladi, Hossein, Cizek, Pavel and Hodgson, Peter D. 2010, Texture and substructure development during post-dynamic softening in Ni-30%Fe austenite, Materials science forum, vol. 654-656, pp. 1279-1282.

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Title Texture and substructure development during post-dynamic softening in Ni-30%Fe austenite
Author(s) Beladi, HosseinORCID iD for Beladi, Hossein orcid.org/0000-0003-0131-707X
Cizek, Pavel
Hodgson, Peter D.
Journal name Materials science forum
Volume number 654-656
Start page 1279
End page 1282
Total pages 4
Publisher Trans Tech Publications
Place of publication Stafa-Zurich, Switzerland
Publication date 2010-06-30
ISSN 0255-5476
Keyword(s) post-dynamic softening
texture
dislocations
metadynamic recrystallization
Summary The texture and substructure development during post-dynamic annealing of an austenitic Ni-30%Fe model alloy after complete dynamic recrystallization was investigated using electron back-scattered diffraction (EBSD) and transmission electron microscopy (TEM). A novel mechanism of metadynamic softening is proposed based on the experimental investigation of the grain structure, crystallographic texture and dislocation substructure evolution. The initial softening stage involved rapid growth of the dynamically formed nuclei and migration of the mobile boundaries. The subboundaries within DRX grains progressively disintegrated through dislocation climb and dislocation annihilation, which ultimately led to the formation of dislocation-free grains, while the grain boundary migration gradually became slower. As a result, the DRX texture was largely preserved throughout the annealing process.
Language eng
Field of Research 091207 Metals and Alloy Materials
Socio Economic Objective 861206 Structural Metal Products
HERDC Research category C1 Refereed article in a scholarly journal
HERDC collection year 2010
Copyright notice ©2010, Trans Tech Publications
Persistent URL http://hdl.handle.net/10536/DRO/DU:30034402

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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