The tensile test fracture area locates on weld seam, and the hardness near HAZ fusion line is the highest, away from the fusion line, the hardness declines and reach the parent metal hardness.
焊接接头的拉伸试验断裂部位在焊缝。焊接HAZ熔合线附近的硬度值最高，远离熔合线硬度降低，并逐渐接近母材金属的硬度。
The tensile test fracture area locates on weld seam, and the hardness near HAZ fusion line is the highest, away from the fusion line, the hardness declines and reach the parent metal hardness.
焊接接头的拉伸试验断裂部位在焊缝。焊接HAZ熔合线附近的硬度值最高，远离熔合线硬度降低，并逐渐接近母材金属的硬度。
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