Ferrite grain refinement in low carbon Cu–P–Cr–Ni–Mo weathering steel at various temperatures in the (α+γ) region

• Published in: Materials characterization Vol. 113; pp. 10 - 16
• Main Authors: Zhang, Chunling, Zhang, Mengmeng, Guo, Tengteng, Yang, Jinfeng, Kong, Yuting, Cai, Dayong, Li, Qiang
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.03.2016
• Subjects: Atmospheric corrosion; Boundaries; CARBON; Continuous dynamic recrystallization; Corrosion resistant steels; DEFORMATION; Deformation-induced ferrite transformation; DESIGN; DIAGRAMS; DIFFRACTION; Electron backscatter diffraction; ELECTRON TEMPERATURE; Ferrite; FERRITES; GRAIN REFINEMENT; GRAIN SIZE; Grains; MATERIALS SCIENCE; NANOSCIENCE AND NANOTECHNOLOGY; RECRYSTALLIZATION; STEELS; STRAIN RATE; TEMPERATURE RANGE 1000-4000 K; TRANSMISSION ELECTRON MICROSCOPY; Warm compression; WEATHERING; Weathering steels; Warm compression; Continuous dynamic recrystallization; Transmission electron microscopy; Electron backscatter diffraction; Grain refinement; Deformation-induced ferrite transformation

Self-designed Cu–P–Cr–Ni–Mo weathering steel was subjected to compression test to determine the mechanism of ferrite grain refinement from 750°C to 925°C. Optical microscopic images showed that ferrite grain size declined, whereas the ferrite volume fraction increased with increasing compression tem...