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Recent Progress of Low and Medium-Carbon Advanced Martensitic Steels

Koh-ichi Sugimoto

2021Englishmartensitic steelsadvanced high-strength steelsmicrostructuremechanical propertiesheat treatmentautomotive applications

Abstract

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This article introduces the microstructural and mechanical properties of low and medium-carbon advanced martensitic steels (AMSs) subjected to heat-treatment, hot- and warm-working, and/or case-hardening processes. The AMSs developed for sheet and wire rod products have a tensile strength higher than 1.5 GPa, good cold-formability, superior toughness and fatigue strength, and delayed fracture strength due to a mixture of martensite and retained austenite, compared with the conventional martensitic steels. In addition, the hot- and warm-stamping and forging contribute to enhance the mechanical properties of the AMSs due to grain refining and the improvement of retained austenite characteristics. The case-hardening process (fine particle peening and vacuum carburization) is effective to further increase the fatigue strength.

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Cite This Work

@article{16e93d88-29e3-49a8-96ca-912a8a0bb19b,
  title={Recent Progress of Low and Medium-Carbon Advanced Martensitic Steels},
  author={Koh-ichi Sugimoto},
  year={2021},
  language={English}
}
TY  - JOUR
TI  - Recent Progress of Low and Medium-Carbon Advanced Martensitic Steels
AU  - Koh-ichi Sugimoto
PY  - 2021
LA  - English
ER  -

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