Reduction of UTS of about 20-30% with respect to base material occurred with rupture in the softened zone of welding, usually HAZ.
与母材相比，焊接后的试样抗拉强度减小了大约20 ~ 30%，试样在软化区发生断裂，该区域通常是热影响区。
In general, on the surface of a domestic bearing raceway appears a softened zone which affects greatly the working life of bearings.
国产轴承滚道表面普遍存在软化层，极大地影响轴承寿命。
With the heat input of laser welding increases, the hardness of HAZ decreases, but it is higher than that of the base metal, indicating no softened zone after laser welding.
焊接接头显微硬度随热输入的增大而减小，均高于母材，未出现明显的软化区。
The stringer thermo-mechanically affected zone was also softened and its hardness was reduced 17.0%.
T型接头筋板焊缝热力影响区同样被软化，其硬度较母材降低17.0%；
The stringer thermo-mechanically affected zone was also softened and its hardness was reduced 17.0%.
T型接头筋板焊缝热力影响区同样被软化，其硬度较母材降低17.0%；
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