Crossref journal-article
SAGE Publications
Materials Science and Technology (179)
Abstract

The influence of the hardness of martensite and ferrite phases in dual phase steel on void formation has been investigated by in situ tensile loading in a scanning electron microscope. Microstructural observations have shown that most voids form in martensite by evolving four steps: plastic deformation of martensite, crack initiation at the martensite/ferrite interface, crack propagation leading to fracture of martensite particles and void formation by separation of particle fragments. It has been identified that the hardness effect is associated with the following aspects: strain partitioning between martensite and ferrite, strain localisation and critical strain required for void formation. Reducing the hardness difference between martensite and ferrite phases by tempering has been shown to be an effective approach to retard the void formation in martensite and thereby is expected to improve the formability.

Bibliography

Azuma, M., Goutianos, S., Hansen, N., Winther, G., & Huang, X. (2012). Effect of hardness of martensite and ferrite on void formation in dual phase steel. Materials Science and Technology, 28(9–10), 1092–1100.

Authors 5
  1. M. Azuma (first)
  2. S. Goutianos (additional)
  3. N. Hansen (additional)
  4. G. Winther (additional)
  5. X. Huang (additional)
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Dates
Type When
Created 13 years, 3 months ago (May 11, 2012, 4:15 a.m.)
Deposited 5 months, 2 weeks ago (March 11, 2025, 12:02 a.m.)
Indexed 4 days, 7 hours ago (Aug. 26, 2025, 2:32 a.m.)
Issued 12 years, 10 months ago (Oct. 1, 2012)
Published 12 years, 10 months ago (Oct. 1, 2012)
Published Online 12 years, 10 months ago (Oct. 1, 2012)
Published Print 12 years, 10 months ago (Oct. 1, 2012)
Funders 0

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@article{Azuma_2012, title={Effect of hardness of martensite and ferrite on void formation in dual phase steel}, volume={28}, ISSN={1743-2847}, url={http://dx.doi.org/10.1179/1743284712y.0000000006}, DOI={10.1179/1743284712y.0000000006}, number={9–10}, journal={Materials Science and Technology}, publisher={SAGE Publications}, author={Azuma, M. and Goutianos, S. and Hansen, N. and Winther, G. and Huang, X.}, year={2012}, month=oct, pages={1092–1100} }