讨论了激光熔区的凝固特征及成分与激光熔区的平均显微硬度的关系。
The solidification phenomena of the laser melted zone and the relationship between the composition and average microhardness of the laser melted zone were discussed.
结果表明：储能焊能够实现TC4钛合金薄板的快速凝固焊接，焊接接头由熔核和熔核向母材过渡的熔合区（线）组成。
The results show that the welding of TC4 can be realized by capacitor discharge welding. The joint microstructure consists of nugget zone and semi-melt zone.
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