Brief description
Steel, austenitised at 1200 centigrade for 120 s and then transformed isothermally at 350 centigrade for 2000 s before cooling to room temperature.
Keywords
alloy , bainite , metal, shape deformation, steel
Categories
Metal or alloy
System
Fe-C-X
Composition
Fe, C 0.24, Si 2.18, Mn 2.32, Ni 1.05 (wt%)
Processing
The sample was metallographically polished flat prior to transformation. For details see E. Swallow & H. Bhadeshia, Materials Science and Technology 12 (1996) 121
Sample preparation
Polished flat prior to transformation. All visible relief is due to phase change - the sample is unetched.
Technique
Atomic force microscopy (AFM)
Length bar
1 μm
Further information
Steel, austenitised at 1200 centigrade for 120 s and then transformed isothermally at 350 centigrade for 2000 s before cooling to room temperature. The specimen was polished prior to transformation. This atomic force microscope image shows the displacements caused by the formation of bainite.