Quantitative study of multi-phases in TRIP-aided steels by means of neutron diffraction: a review

The retained austenite and solute carbon in C-Si-Mn TRIP steels were quantitatively analyzed by neutron diffractometry, and their effects on the mechanical properties of the steels were studied. The decreasing of austempering temperature increased the volume fraction of retained austenite as well as...

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Bibliographic Details
Published in:Physics of metals and metallography 2014-12, Vol.115 (13), p.1267-1274
Main Authors: Seong, B. S., Maneewong, A., Shin, E., Lee, K. H.
Format: Article
Language:English
Subjects:
Austempering
Austenite
Carbon
Chemistry and Materials Science
Elongation
Materials Science
Metallic Materials
Retained austenite
Steels
TRIP steels
Volume fraction
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Summary:The retained austenite and solute carbon in C-Si-Mn TRIP steels were quantitatively analyzed by neutron diffractometry, and their effects on the mechanical properties of the steels were studied. The decreasing of austempering temperature increased the volume fraction of retained austenite as well as the solute carbon in an austenite phase. However, the samples containing lower silicon showed a large variation in the amount of retained austenite and solute carbon in austenite with austempering temperature. The amount of retained austenite was proportional to the solute carbon in austenite. The elongation in TRIP steel was affected by both the volume fraction of retained austenite and the solute carbon in austenite.
ISSN:0031-918X
1555-6190
DOI:10.1134/S0031918X14130225