Effect of partial recrystallization on the grain size and grain boundary structure of austenitic steel

Journal Article · Sun Apr 15 04:00:00 EDT 2012 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2011.09.003· OSTI ID:22066441

Cyclic thermomechanical treatment combined with caliber rolling was applied in order to obtain very fine grain structure with high fraction of special grain boundaries in austenitic stainless steel. Partial recrystallization was observed. Recrystallized fraction was assessed from misorientation data measured by electron back scattering diffraction. Due to the partial recrystallization, elastic energy was stored in the deformed parts, and helped grain boundary movement. As a consequence, very fine grained material with high fraction of special boundaries was formed. - Highlights: Black-Right-Pointing-Pointer I combined the advantage of severe plastic deformation and thermomechanical treatment. Black-Right-Pointing-Pointer A very fine grained steel with high fraction of special boundaries was formed. Black-Right-Pointing-Pointer Stored elastic energy hepled the movement of grain boundaries. Black-Right-Pointing-Pointer The amount of recrystallized part was determined by EBSD.

• OSTI ID: 22066441
• Journal Information: Materials Characterization, Journal Name: Materials Characterization Journal Issue: Complete Vol. 66; ISSN 1044-5803; ISSN MACHEX
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
AUSTENITIC STEELS
BACKSCATTERING
ELECTRON DIFFRACTION
GRAIN BOUNDARIES
GRAIN SIZE
PLASTICITY
RECRYSTALLIZATION
REFINING
ROLLING
THERMOMECHANICAL TREATMENTS