Formation of ultrafine grained ferrite by warm deformation of lath martensite in low-alloy steels with different carbon content

Formation of ultrafine grained ferrite by warm deformation of tempered lath martensite was investigated in Fe–2Mn–(0.1–0.8)C (mass%) alloys. Analysis of initial microstructure shows that an increase in carbon content leads to a decrease of lath martensite block size. Fine equiaxed (α) grains surroun...

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Bibliographic Details
Published inScripta materialia Vol. 59; no. 3; pp. 279 - 281
Main Authors Poorganji, Behrang, Miyamoto, Goro, Maki, Tadashi, Furuhara, Tadashi
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.08.2008
Subjects
Alloys
Boundaries
Carbon content
Deformation
Dynamic recrystallization
Ferrite
Grain refining
Grain size
Lath martensite
Martensite
Thermomechanical processing
Lath martensite
Dynamic recrystallization
Thermomechanical processing
Grain refining
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Summary:Formation of ultrafine grained ferrite by warm deformation of tempered lath martensite was investigated in Fe–2Mn–(0.1–0.8)C (mass%) alloys. Analysis of initial microstructure shows that an increase in carbon content leads to a decrease of lath martensite block size. Fine equiaxed (α) grains surrounded by high-angle boundaries are formed by dynamic recrystallization. As carbon content increases, the recrystallized α grain size decreases. It is considered that dynamic recrystallization of tempered lath martensite is a continuous type.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
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content type line 23
ISSN:1359-6462
1872-8456
DOI:10.1016/j.scriptamat.2008.03.041