Mn-Si-Al Steel

Steel name: Mn-Si-Al
Diagram No.: 8171
Type of diagram: CCT
Chemical composition in weight %: 0.19% C, 1.18% Si, 1.57% Mn, 0.49% Cr, 0.26% Ni, 0.18% V, 0.70% Cu
Steel group: TRIP steels
Note: Continuous cooling transformation diagram for the Mn-Si-Al steel constructed from the microstructural analysis and the dilatometer curves. 10 min indicates the holding time during austempering. CCT-Diagrams like this were difficult to locate in published literature for comparison. The approximated Ms-Temperature using an expression from literature [Ehr99] is 440°C.
Reference: Not shown in this demo version.
Musa Omollo Onyuna, DEFORMATION BEHAVIOUR AND MARTENSITIC TRANSFORMATIONS IN METASTABLE AUSTENITIC STEELS AND LOW ALLOYED MULTIPHASE STEELS, PhD Thesis, Department of Materials Science and Technology, Freiberg University of Mining and Technology, 2002, pp. 30, 40.
Reference [Ehr99]: Ehrhardt, B., Verbesserung der Umformeigenschaften von hochfestem Warm- und Kaltband aus niedrig legierten Stählen durch Restaustenit, Dissertation, RWTH Aachen, 1999.

Transformation Diagram


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