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← TechnologyWhich risk increases in a steel structure when heat-affected zone (HAZ) welding causes localized rapid heating?
A)Hydrogen-induced cracking susceptibility✓
B)Improved fatigue strength enhancement
C)Enhanced weathering steel passivation
D)Increased weld toughness performance
💡 Explanation
Hydrogen-induced cracking becomes more likely to occur because rapid heating during welding increases hydrogen diffusion into the HAZ promoting brittle fracture. Therefore, hydrogen-induced cracking increases rather than fatigue strength or weathering performances which are negatively associated with HAZ.
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