weld metal toughness
... weld metal hardness 焊缝金属硬度 weld metal toughness 焊缝金属韧度 weld metal zone 焊缝金属区 ...
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接头焊缝金属的断裂韧度显著低于母材，而热影响区断裂韧度则介于母材和焊缝金属之间。
The fracture toughness of the weld metal is lower than that of the base metal and the fracture toughness of heat-affected zone (HAZ) is intervenient between those of weld metal and base metal.
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