Steel, austenitised at 1200 C for 120 s

[Peyman 16,150]

 

 

 

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.