Which outcome arises when welding high-strength steel without preheating in cold weather?

💡 Explanation

When welding high-strength steel lacking preheating during cold climates, hydrogen-induced cracking occurs because rapid weld cooling traps hydrogen that diffuses into the heat-affected zone and promotes brittle fracture. Therefore cracking occurs, rather than grain growth, ductility increases or heightened corrosion, which involve different heat treatments.

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