weld metal zone的意思|示意

Metallurgical tests of cross-sectional weld samples indicate a minimal heat-affected zone that is identical to the parent metal.

剖焊样品的金相检验表明，成品的最小热影响区与母体金属完全相同。

The results show that:under the no preheating condition, the microstructure of weld metal is columnar austenitic, and brittle martensite exists in the fusion zone and over-heated zone unavoidably.

研究结果表明：在不预热条件下，用KD286焊补钢轨，焊缝组织为柱状奥氏体组织，熔合区和过热区不可避免地产生脆硬的马氏体组织。

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.

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。

Weld metal zone are mostly acicular ferrite which can improve the weld zone toughness.

焊缝金属区晶粒分布均匀，焊缝金属区多为针状铁素体，能够提高焊缝区的韧性。

The basic requirement of welding the steel 2205 is that the weld metal and heat-affected zone obtain a favorable phase balance and retain the performance as the base metal after welding.

平衡铁素体和奥氏体两相组织在焊缝金属和热影响区中的比例，保证焊接接头的性能，是双相不锈钢焊接的基本要求。

The coarse primary ferrite appeared in weld metal, and coarse bainite appeared in heat-affected zone under larger heat input welding condition, which caused low...

在较大焊接热输入条件下焊接，焊缝金属产生粗大先共析铁素体、过热区产生粗大粒状贝氏体，焊接接头低温冲击韧性因此降低。