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Indexed by:期刊论文

Date of Publication:2016-06-01

Journal:ACTA METALLURGICA SINICA-ENGLISH LETTERS

Included Journals:SCIE、EI

Volume:29

Issue:6

Page Number:561-567

ISSN No.:1006-7191

Key Words:Ferritic steels; Surface ridging; Micro-texture; Electron backscattered diffraction (EBSD)

Abstract:The effects of the finisher entry temperatures (FETs) on the surface ridging behavior for an ultra-purified 21%Cr ferritic stainless steel have been investigated. The results indicate that decreasing the FET facilitates the formation of in-grain shear bands in the hot rolled slab. The in-grain shear bands supplied recrystallization nucleation sites in grains during subsequent annealing through coalescence of subgrains, which is beneficial to refine the microstructures and intensify the {111}//ND textures. This effect will evolve to the final cold rolled and annealed sheet. The micro-texture analysis indicates that the formation of grain colony in the final sheet is weakened by decreasing the FET. Then, the surface ridging resistance of FSS is enhanced due to the optimizing of micro-texture distribution.