Effect of the heat treatment on the microstructure and mechanical properties of medium-Mn-steels

Reinhold Schneider, Katharina Steineder, Daniel Krizan, Christof Sommitsch

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The heat-treatment (HT) schedule and selected annealing parameters have a substantial effect on the microstructure and mechanical properties of medium-Mn-steels. The structure morphology depends on the fact, whether the austenite-reverted transformation takes place from deformed (one-step HT) or non-deformed (two-step HT) microstructures. Depending on the intercritical annealing temperature, the stability of the retained austenite can be altered to a large extent. As a result, the mechanical properties can be adjusted from high strength with excellent ductility to very high strength with reasonable ductility. The present contribution, therefore, elucidates the dependence of the microstructural characteristics and material behaviour on the HT parameters for medium-Mn alloy compositions with different Mn-contents.

LanguageEnglish
JournalMaterials Science and Technology (United Kingdom)
Early online date30 Nov 2018
DOIs
StatusE-pub ahead of print - 30 Nov 2018

Fingerprint

Steel
heat treatment
Heat treatment
steels
mechanical properties
Mechanical properties
microstructure
Microstructure
austenite
high strength
ductility
Austenite
Ductility
Annealing
annealing
schedules
Chemical analysis
Temperature
temperature

Keywords

  • heat treatment
  • mechanical properties
  • Medium-Mn-steels
  • microstructure

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Effect of the heat treatment on the microstructure and mechanical properties of medium-Mn-steels. / Schneider, Reinhold; Steineder, Katharina; Krizan, Daniel; Sommitsch, Christof.

In: Materials Science and Technology (United Kingdom), 30.11.2018.

Research output: Contribution to journalArticleResearchpeer-review

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