Effect of Welding Wires Containing ZrB₂ Particles on Microstructure and Mechanical Properties of Spray-Formed 7055 Aluminum Alloy TIG Welded Joints

Table 1

Main elements’ composition of the welding wires.

	Zn (wt.%)	Mg (wt.%)	Cu (wt.%)	ZrB2 (wt.%)	Al (wt.%)
1.5% ZrB2/Al-Mg	—	5.399	—	1.5	Allowance
1.5% ZrB2/7055	9.003	2.312	2.366	1.5	Allowance
3.0% ZrB2/7055	8.988	2.215	2.224	3.0	Allowance