Which statement about weld normalization is true?

Which statement about weld normalization is true?

• A. Relieve internal stresses developed within the base metal
• B. Increase hardness throughout the weld to a maximum
• C. Eliminate all oxidation from the base metal
• D. Make the weld visually darker for inspection

Answer: (A)

Weld normalization is a heat-treatment aimed at reducing residual stresses and refining the microstructure of the welded region. By heating the metal above its critical temperature and then allowing it to air-cool, the internal stresses formed during welding are relieved and the grain becomes more uniform and finer. This improves toughness and reduces the risk of cracking without driving the hardness to a maximum. It’s not about removing oxidation or darkening the weld for inspection, and it doesn’t Zweckfully increase hardness throughout the weld to its peak. So the true statement is that normalization relieves internal stresses developed within the base metal.

Weld normalization is a heat-treatment aimed at reducing residual stresses and refining the microstructure of the welded region. By heating the metal above its critical temperature and then allowing it to air-cool, the internal stresses formed during welding are relieved and the grain becomes more uniform and finer. This improves toughness and reduces the risk of cracking without driving the hardness to a maximum. It’s not about removing oxidation or darkening the weld for inspection, and it doesn’t Zweckfully increase hardness throughout the weld to its peak. So the true statement is that normalization relieves internal stresses developed within the base metal.