Most weld failures don’t occur in the weld metal—they occur in the Heat Affected Zone (HAZ). Visit weldfabworld.com Follow Technical Master HAZ is the area of base metal that is not melted but undergoes metallurgical changes due to welding heat. Grain growth, increased hardness, and reduced toughness can make this zone critical. Proper control of heat input, correct welding parameters, and post-weld heat treatment are essential to maintain weld integrity. Understanding HAZ helps welders, enginee
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Corrosion is silent but dangerous ⚠️ From uniform rusting to hidden failures like pitting, crevice corrosion, stress corrosion cracking, and intergranular attack — understanding corrosion types is critical for engineers, inspectors, and students. This video visually explains how and where corrosion occurs, why it is difficult to detect, and how it leads to sudden failures in pipes, joints, and structures. Perfect for mechanical, civil, and materials engineering basics. #Corrosion #MechanicalEngi
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