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首页> 外文会议>2006 BIMW >Cracking Susceptibility and Joint Property Study of the 6061 Aluminum
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Cracking Susceptibility and Joint Property Study of the 6061 Aluminum

机译：6061铝的开裂敏感性和接头性能研究

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By means of FISICO test, the cracking susceptibility of the 6061 aluminum was investigated, the experimental results showed that it is prone to form crater crack under restraint condition comparison with that of the 3003 aluminum. So the crater fill-up technology need to be employed accordingly during the field welding. The strength, elongation percentage and hardness of the as welded joint was lowered 29.7%、40%和42% respectively, the former two is recovered to 73.4% and 81.7% of the base material respectively after natural aging 30days. This indicate that the natural aging treatment can remedy part of the property loss during the welding.
机译：通过FISICO试验，对6061铝的开裂敏感性进行了研究，实验结果表明，与3003铝相比，在约束条件下容易形成弹坑裂纹。因此，在现场焊接过程中需要相应地采用火山口填充技术。自然老化30天后，焊接接头的强度，伸长率和硬度分别降低了29.7％，40％和42％，前两者分别恢复到母材的73.4％和81.7％。这表明自然时效处理可以弥补焊接过程中的部分性能损失。

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