Methods: Electrochemical technique was adopted to detect the changes of anode polarization curves of TA2 and TC4 after welding with laser or pulsed tungsten argon arc.
方法：采用动电位极化技术，分别测定激光焊接及脉冲氩弧焊接TA2和TC4后，材料阳极极化曲线的变化。
The anode polarization curves of testing steel were measured by electrochemical methods.
用电化学方法测得了带锈样的阳极极化曲线。
The anode polarization curves of testing steel were measured by electrochemical methods.
用电化学方法测得了带锈样的阳极极化曲线。
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