Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
A modified johnson-cook model for ferritic-pearlitic steel in dynamic strain aging regime
Sandvik Coromant Sverige AB, SWE.
Sandvik Materials Technology, SWE.
Högskolan Väst, SWE.
Högskolan Väst, SWE.
Show others and affiliations
2019 (English)In: Metals, ISSN 2075-4701, Vol. 9, no 5, article id 528Article in journal (Refereed) Published
Abstract [en]

In this study, the flow stress behavior of ferritic-pearlitic steel (C45E steel) is investigated through isothermal compression testing at different strain rates (1 s-1, 5 s-1, and 60 s-1) and temperatures ranging from 200 to 700 °C. The stress-strain curves obtained from experimental testing were post-processed to obtain true stress-true plastic strain curves. To fit the experimental data to well-known material models, Johnson-Cook (J-C) model was investigated and found to have a poor fit. Analysis of the flow stress as a function of temperature and strain rate showed that among other deformation mechanisms dynamic strain aging mechanism was active between the temperature range 200 and 400 °C for varying strain rates and J-C model is unable to capture this phenomenon. This lead to the need to modify the J-C model for the material under investigation. Therefore, the original J-C model parameters A, B and n are modified using the polynomial equation to capture its dependence on temperature and strain rate. The results show the ability of the modified J-C model to describe the flow behavior satisfactorily while dynamic strain aging was operative. © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

Place, publisher, year, edition, pages
MDPI AG , 2019. Vol. 9, no 5, article id 528
Keywords [en]
Dynamic strain aging, Flow stress, Modified johnson-cook model
National Category
Metallurgy and Metallic Materials
Identifiers
URN: urn:nbn:se:bth-18160DOI: 10.3390/met9050528ISI: 000478818700046Scopus ID: 2-s2.0-85066741813OAI: oai:DiVA.org:bth-18160DiVA, id: diva2:1328128
Note

open access

Available from: 2019-06-20 Created: 2019-06-20 Last updated: 2019-09-10Bibliographically approved

Open Access in DiVA

fulltext(1653 kB)157 downloads
File information
File name FULLTEXT01.pdfFile size 1653 kBChecksum SHA-512
57b157a572738d361679ef61036bee5043a9bc87d6bf448786971f7ebedcf5a27d71acb664e1160cc102e86d142ebfc69af0df99ac29e69c9693c2f6809199ee
Type fulltextMimetype application/pdf

Other links

Publisher's full textScopus

Authority records BETA

Magnevall, Martin

Search in DiVA

By author/editor
Magnevall, Martin
By organisation
Department of Mechanical Engineering
Metallurgy and Metallic Materials

Search outside of DiVA

GoogleGoogle Scholar
Total: 157 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 178 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf