Effect of Prior Austenite Grain Size on Hole Expansion Ratio of Quenching and Partitioning Processed Medium-Mn Steel View Full Text


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Article Info

DATE

2019-01-18

AUTHORS

Ji Hoon Kim, Sea Woong Lee, Kyooyoung Lee, Jin-Kyung Kim, Dong-Woo Suh

ABSTRACT

The effect of the prior austenite grain size (PAGS) on the tensile properties and hole expansion ratio (HER) has been investigated. Starting from different PAGS values (4.7 μm and 15.2 μm) obtained by controlling the austenitizing temperature, microstructure consisting of martensite and austenite (Vγ of 0.09–0.18) was produced by the quenching and partitioning process. Increasing Vγ had a beneficial influence on the tensile elongation regardless of the PAGS, but deteriorated the HER. However, larger PGAS alleviated the degradation of the HER. The major influence of a larger PAGS on the HER results from the decreased population of interface between neighboring martensite in the shear-affected zone, because that interface is revealed to be a major site for void formation during hole expansion testing. More... »

PAGES

1366-1374

References to SciGraph publications

  • 2016-10-20. Combined Intercritical Annealing and Q&P Processing of Medium Mn Steel in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 2011-07-23. Review of the Shearing Process for Sheet Steels and Its Effect on Sheared-Edge Stretching in JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
  • 2003-09. The relationships between tensile properties and hole expansion property of C-Mn steels in JOURNAL OF MATERIALS SCIENCE
  • 2014-07-22. Non-linear Correlation Between Uniaxial Tensile Properties and Shear-Edge Hole Expansion Ratio in JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
  • 2014-04-30. Application of Quenching and Partitioning (Q&P) Processing to Press Hardening Steel in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 2014-11-18. Application of Quenching and Partitioning Processing to Medium Mn Steel in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 1983-06. An atom probe study of the aging of iron-nickel-carbon martensite in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 1977-11. Hardness of tempered martensite in carbon and low-alloy steels in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 2013-04-10. Failure during Sheared Edge Stretching of Dual-Phase Steels in METALLURGICAL AND MATERIALS TRANSACTIONS A
  • 2018-02-03. Evaluation of factors affecting the edge formability of two hot rolled multiphase steels in INTERNATIONAL JOURNAL OF MINERALS, METALLURGY AND MATERIALS
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    URI

    http://scigraph.springernature.com/pub.10.1007/s11837-019-03332-y

    DOI

    http://dx.doi.org/10.1007/s11837-019-03332-y

    DIMENSIONS

    https://app.dimensions.ai/details/publication/pub.1111504877


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    174 grid-institutes:grid.264381.a schema:alternateName Department of Energy Science, Sungkyunkwan University, 16419, Suwon, Republic of Korea
    175 schema:name Department of Energy Science, Sungkyunkwan University, 16419, Suwon, Republic of Korea
    176 rdf:type schema:Organization
    177 grid-institutes:grid.49100.3c schema:alternateName Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, 37673, Pohang, Republic of Korea
    178 schema:name Graduate Institute of Ferrous Technology, Pohang University of Science and Technology, 37673, Pohang, Republic of Korea
    179 rdf:type schema:Organization
     




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