Question: 4 8 3 . Pick out the wrong statement. Cold cracking of a weld is due to the presence of hydrogen gas in the weld

483. Pick out the wrong statement.
Cold cracking of a weld is due to the presence of hydrogen gas in the weld
True stress is given by,= E (1+ E), where E and E are engineering stress and engineering strain respectively
Phosphorous can be easily recovered in the iron blast furnace
High residual stress at the surface is beneficial for fatigue properties of a material

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