Abstract
The impact property of SA-738Gr.B welding joint and the effect of post weld heat treatment (PWHT) on the impact property of welding joint were studied. The results show that the impact properties of the welded joint without PWHT can meet the requirements of the specification, the impact properties of the weld and heat affected zone reduced after PWHT, and the impact toughness of the weld decreases more, but all meet the requirements of the specification.
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