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首页> 外文期刊>Journal of Manufacturing Processes >Effect of inert gas-shielding on the interface and mechanical properties of Mg/Al explosive welding composite plate
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Effect of inert gas-shielding on the interface and mechanical properties of Mg/Al explosive welding composite plate

机译：惰性气体保护对Mg / Al爆炸焊接复合板界面和力学性能的影响

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摘要

Mg alloys oxidize easily in air atmosphere during explosive welding. In this study, explosive welding of Mg/Al composites was shielded using inert gas to improve composite quality. Mg-AZ31B/Al-1060 composite plates were produced under helium atmosphere and compared with identical plates produced under air atmosphere with the same parameters. Microscopic morphology, elemental distribution and the mechanical properties of the bonding interface were evaluated. The interface morphology of the composites welded under helium differs significantly from those welded under air due to the different pressure of shock waves in gaseous media, and almost no oxide formed on the interface of helium bonded composite. In addition, the gain of shear and tensile strength of the helium bonded samples were observed. Therefore, the inert gas plays an important role in improving the properties of Mg-Al composite plates. Inert gas-shielding can be applied as an effective manufacturing method in live wave metal explosive welding.
机译：爆炸焊接过程中，镁合金在空气中易氧化。在这项研究中，使用惰性气体保护Mg / Al复合材料的爆炸焊接，以提高复合材料的质量。 Mg-AZ31B / Al-1060复合板是在氦气氛下生产的，并与在空气气氛下以相同参数生产的相同板进行了比较。评价了微观形态，元素分布和键合界面的机械性能。由于气体介质中冲击波的压力不同，在氦气下焊接的复合材料的界面形态与在空气下焊接的复合物的界面形态显着不同，并且在氦键合复合材料的界面上几乎没有形成氧化物。另外，观察到氦结合样品的剪切强度和拉伸强度的增加。因此，惰性气体在改善Mg-Al复合板的性能中起重要作用。惰性气体保护可以用作带电金属爆炸焊接中的有效制造方法。

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