Research Article

Effects of Cryogenic Treatment and Tempering on Mechanical Properties and Microstructure of 0.25C-0.80Si-1.6Mn Steel

Figure 2

Microstructure and grain boundary of initial steel. (a) OM microstructure of initial steel, (b) IPF of initial steel, (c) grain boundary of initial steel, and (d) grain size of initial steel.
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