Grain Size Dependence of Austenite Decomposition in Air-Cooled 16MnCr5 Steel

Grain Size Dependence of Austenite Decomposition in Air-Cooled 16MnCr5 Steel

A hot-rolled and controlled rolled 16MnCr5 steel was analyzed after similar industrial cooling conditions. The hot rolled steel had a ferrite–bainite microstructure whereas the controlled rolled steel had a ferrite–pearlite microstructure. The prior austenite grain size was found to be the controlli...

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Veröffentlicht in:Metallurgical and materials transactions. A, Physical metallurgy and materials science Physical metallurgy and materials science, 2013-06, Vol.44 (6), p.2455-2460
Hauptverfasser: Lee, Seok-Jae, Van Tyne, Chester J.
Format: Artikel
Sprache:eng
Schlagworte:
Applied sciences
Characterization and Evaluation of Materials
Chemistry and Materials Science
Communication
Exact sciences and technology
Grain size
Hot rolling
Materials Science
Metallic Materials
Metallurgy
Metals. Metallurgy
Microstructure
Nanotechnology
Rolling
Steel
Structural Materials
Surfaces and Interfaces
Thin Films
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Zusammenfassung:A hot-rolled and controlled rolled 16MnCr5 steel was analyzed after similar industrial cooling conditions. The hot rolled steel had a ferrite–bainite microstructure whereas the controlled rolled steel had a ferrite–pearlite microstructure. The prior austenite grain size was found to be the controlling factor based on a cooling analysis. The effect of prior austenite grain size on the bainite start temperature had to be considered in the transformation model.
ISSN:1073-5623
1543-1940
DOI:10.1007/s11661-013-1706-y