Transformation of M/A Constituents during Tempering and Its Effects on Impact Toughness of Weld Metals for X80 Hot Bends

<div>Acicular ferrite nucleated surrounding the nonmetallic oxide inclusion and M/A constituents in the microstructure: (a) SEM; (b) TEM; (c) M/A constituents.</div>

Advances in Materials Science and Engineering

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Figure 4

Figure 4: Transformation of M/A Constituents during Tempering and Its Effects on Impact Toughness of Weld Metals for X80 Hot Bends 