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

Figure 8

DCT at −110°C and tempering at 350°C. (a) Misorientation histogram of grain, (b) image of grain size, (c) misorientation histogram of FCC, and (d) misorientation histogram of BCC.

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(b)

(c)

(d)