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A fine-grained steel has the same components and weldability as a mild steel, whereas a conventional high-strength steel has lower weldability due to its alloying elements. The occurrence of softening caused by coarsening in the heat-affected zone (HAZ) of welded parts of the fine-grained steels and mechanical design of welded parts including weld HAZ-softening becomes much important. Mechanical properties...
A fine-grained steel has the same components and weldability as a mild steel, whereas a conventional high-strength steel has lower weldability due to its alloying elements. The occurrence of softening caused by coarsening in the heat-affected zone (HAZ) of welded parts of the fine-grained steels and mechanical design of welded parts including weld HAZ-softening becomes much important. Mechanical properties...
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