Low-Cycle Fatigue Properties of the X70 High-Frequency Electric-Resistant Welded Pipes

<div>Optical microstructure of the weld joint: (a) base metal, (b) heat-affected zone (HAZ) close to the base metal, (c) HAZ close to the weld junction, and (d) weld junction.</div>

Advances in Materials Science and Engineering

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Figure 2

Figure 2: Low-Cycle Fatigue Properties of the X70 High-Frequency Electric-Resistant Welded Pipes 