Effect of precipitation strengthening in low alloyed Mn–Ni cast steels

The influence of modification and heat treatment on the properties of low alloyed C–Mn 1.4-V cast steels has been investigated. A new type of cast steel with a yield strength above 850 MPa and elongation higher than 8% obtained in stepped samples with 20–75 mm wall thickness by microalloying, optima...

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Bibliographic Details
Published inJournal of materials processing technology Vol. 207; no. 1; pp. 147 - 153
Main Authors Głownia, J., Kalandyk, B.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 16.10.2008
Subjects
Carbonitride precipitation
High strength
Microalloyed cast steels
Vanadium microaddition
Microalloyed cast steels
Carbonitride precipitation
Vanadium microaddition
High strength
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Summary:The influence of modification and heat treatment on the properties of low alloyed C–Mn 1.4-V cast steels has been investigated. A new type of cast steel with a yield strength above 850 MPa and elongation higher than 8% obtained in stepped samples with 20–75 mm wall thickness by microalloying, optimal tempering and control of ferrite volume in the matrix has been developed. Yield strength and toughness were controlled by the precipitation of carbonitrides in substantially ferritic microstructure. The morphology of these precipitates was controlled by the cooling rate during crystallization of the alloy.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0924-0136
DOI:10.1016/j.jmatprotec.2007.12.097