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Title: Notch toughness in hot-rolled low carbon steel wire rod

Abstract

Charpy V-notch toughness has been investigated in four hot-rolled, low carbon steels with different grain sizes and carbon contents between 0.019 and 0.057%. The raw material was wire rod designed for drawing and possible subsequent cold heading operations and manufactured from continuous cast billets. In this study, the influence of microstructure, mechanical properties, and alloying elements on the ductile-brittle transition behavior has been assessed. A particular emphasis has been given to the influence of boron with contents up to 0.0097%. As a result, transition temperatures between {minus}29 and +50 C explicated by the material properties have been obtained. The examination also shows that the transition temperature raises with circa 0.5 C for each added ppm boron most likely as a consequence of an enlargement of the ferrite grain size and the reduction of yield and tensile strength. The highest upper shelf energy and lowest transition temperature can be observed in a steel without boron additions and with maximum contents of carbon, silicon, and manganese.

Authors:
Publication Date:
Research Org.:
Fundia Wire Oy Ab, Dalsbruk (FI)
OSTI Identifier:
20005425
Resource Type:
Journal Article
Journal Name:
Journal of Materials Engineering and Performance
Additional Journal Information:
Journal Volume: 8; Journal Issue: 6; Other Information: PBD: Dec 1999; Journal ID: ISSN 1059-9495
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; FRACTURE PROPERTIES; STEELS; BORON ADDITIONS; RODS; CHARPY TEST; NOTCHES; DUCTILE-BRITTLE TRANSITIONS; METALLURGICAL EFFECTS; GRAIN SIZE; TRANSITION TEMPERATURE

Citation Formats

Baarman, M H. Notch toughness in hot-rolled low carbon steel wire rod. United States: N. p., 1999. Web. doi:10.1361/105994999770346440.
Baarman, M H. Notch toughness in hot-rolled low carbon steel wire rod. United States. https://doi.org/10.1361/105994999770346440
Baarman, M H. 1999. "Notch toughness in hot-rolled low carbon steel wire rod". United States. https://doi.org/10.1361/105994999770346440.
@article{osti_20005425,
title = {Notch toughness in hot-rolled low carbon steel wire rod},
author = {Baarman, M H},
abstractNote = {Charpy V-notch toughness has been investigated in four hot-rolled, low carbon steels with different grain sizes and carbon contents between 0.019 and 0.057%. The raw material was wire rod designed for drawing and possible subsequent cold heading operations and manufactured from continuous cast billets. In this study, the influence of microstructure, mechanical properties, and alloying elements on the ductile-brittle transition behavior has been assessed. A particular emphasis has been given to the influence of boron with contents up to 0.0097%. As a result, transition temperatures between {minus}29 and +50 C explicated by the material properties have been obtained. The examination also shows that the transition temperature raises with circa 0.5 C for each added ppm boron most likely as a consequence of an enlargement of the ferrite grain size and the reduction of yield and tensile strength. The highest upper shelf energy and lowest transition temperature can be observed in a steel without boron additions and with maximum contents of carbon, silicon, and manganese.},
doi = {10.1361/105994999770346440},
url = {https://www.osti.gov/biblio/20005425}, journal = {Journal of Materials Engineering and Performance},
issn = {1059-9495},
number = 6,
volume = 8,
place = {United States},
year = {Wed Dec 01 00:00:00 EST 1999},
month = {Wed Dec 01 00:00:00 EST 1999}
}