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← TechnologyWhich consequence results when porosity increases during welding of high-strength steel?
A)Reduced fatigue strength occurs✓
B)Increased yield strength emerges
C)Corrosion resistance increases
D)Improved ductile deformation arises
💡 Explanation
Fatigue strength is lowered due to reduced cross-sectional area because porosity introduces voids, acting as stress concentrators activating crack nucleation. Therefore, fatigue life diminishes, rather than tensile strength increasing under static load.
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