Einfluss von Chrom und Mangan auf die Bainitbildung in Dualphasenstählen

Translated title of the contribution: Influence of Chromium and Manganese on the Bainite Formation in Dual-Phase Steels

Kurt Leopold Satzinger

Research output: ThesisDiploma Thesis

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Abstract

The steel industry is forced by the automotive industry to produce inovative and marketable products for light-weight-constructions. This target can be achieved by designing high-strenght steels and out of this a possible material reduction. Dual-phase steels, which are part of these Advanced High Strenght Steels (AHSS) exhibit a complex microstructure. An optimization of their properties is only possible with a fundamental knowledge of the proceeding phase transformations. This diploma thesis deals with the phase transformation behaviour of seven selected alloy compositions. Particularly, the bainite formation pays a special attention because of its relevance in high-strenght steels. The selection of the alloying variants should reveal the influence of chromium and manganese on the transformation behaviour. The different variants were investigated by using optical and scanning electron microscope as well as dilatometer, MULTIPAS and atom probe. A combination of these techniques together with thermocalc-calculation, residual austenite measurements and mechanical values allow a meaningful characterisation of occurring mechanismen.
Translated title of the contributionInfluence of Chromium and Manganese on the Bainite Formation in Dual-Phase Steels
Original languageGerman
QualificationDipl.-Ing.
Supervisors/Advisors
  • Hebesberger, Thomas, Co-Supervisor (external), External person
  • Clemens, Helmut, Supervisor (internal)
  • Leitner, Harald, Co-Supervisor (internal)
Award date27 Jun 2008
Publication statusPublished - 2008

Bibliographical note

embargoed until null

Keywords

  • dual-phase steels bainite formation phase transformation alloying influence chromium manganese

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