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1 等离子传统脉冲电流方法的晶粒细化效果探究实验设计
Table 1 Experimental design of the conventional plasma pulse current

Sample

No.

Base

current / A

Peak

current / A

First pulse frequency / HzFirst peak time percent / %

Plasma gas

flux / (L·min-1)

Shielding gas

flux / (L·min-1)

C0180- -1010
S19021020751010
S29021040751010
S39021060751010
S49021080751010
S590210100751010