The microstructure of the welded joints was studied by optical microscopy. It is found that the weld nugget has a dynamic recrystallization, fine isometric crystal structure.
通过对焊接接头组织的分析，发现焊核区晶粒为明显的细化再结晶等轴晶；
The deposition efficiency of welding wires metal, microstructure and mechanical properties of welded joints were studied.
研究了交流和直流反接两种型式下焊丝金属熔敷率、焊接接头金属组织以及接头的力学性能。
The deposition efficiency of welding wires metal, microstructure and mechanical properties of welded joints were studied.
研究了交流和直流反接两种型式下焊丝金属熔敷率、焊接接头金属组织以及接头的力学性能。
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