脉冲电流辅助等离子弧焊Al-Mg合金晶粒细化机理
袁涛, 赵晓虎, 蒋晓青, 任学磊, 李博阳

Mechanism of Grain Refinement of Pulse Current Assisted Plasma Arc Welded Al-Mg Alloy
YUAN Tao, ZHAO Xiaohu, JIANG Xiaoqing, REN Xuelei, LI Boyang
表2 等离子复合脉冲电流方法的晶粒细化效果探究实验设计
Table 2 Experimental design of the plasma composite pulse current

Sample

No.

Base

current / A

Peak

current / A

First pulse frequency / HzSecond pulse frequency / HzFirst peak time percent / %Second peak time percent / %
C0180----
D1902105027550
D2902105047550
D3902105067550
D4902105087550
D59021050107550