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首页> 外文会议>Materials forum - aluminium alloys, their physical and mechanical properties - Volume 28 - 2004 >An Investigation of Sc Addition on the Extrudability, RecrystallisationResistance and Mechanical Properties of a 6082- and a 7108-Alloy
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An Investigation of Sc Addition on the Extrudability, RecrystallisationResistance and Mechanical Properties of a 6082- and a 7108-Alloy

机译：Sc对6082和7108合金的挤压性能，再结晶阻力和力学性能的研究。

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摘要

In the present work the effect of scandium as a dispersoid former in a 6082 and a 7108rnalloy is explored, both by adding Sc alone and in combination with other dispersoidrnforming elements (Zr, Mn,Cr). In extrusion the breakthrough pressure is in general highestrnwhen Sc is added in combination with other dispersoid forming elements. The maximumrnextrusion speed before tearing decreases somewhat when Sc is added to the 6082 alloys,rnwhile taking Mn out of 6082 gives a dramatic decrease in maximum speed due to arnchange in the melting reaction that takes place. In 7108 with Zr the maximum speed wasrnslightly reduced with increasing Sc content. As for the recrystallisation resistance, it isrnclear that Sc does not have a strong effect in 6082 under the present conditions. For thern7108 alloy, adding both Sc and Zr lead to a much higher recrystallisation resistance thanrnby adding only Sc or only Zr. Additions of Sc had some influence on the mechanicalrnproperties which for the 6082 alloys can be related to differences in the degree ofrnrecrystallisation.
机译：在本工作中，通过单独添加Sc或与其他可形成分散体的元素（Zr，Mn，Cr）结合使用，探索了as在6082和7108合金中作为弥散体形成物的作用。在挤出中，当将Sc与其他弥散体形成元素结合使用时，突破压力通常最高。当将Sc添加到6082合金中时，撕裂前的最大挤出速度有所降低，而从6082中取出Mn会由于发生的熔融反应的变化而使最大速度急剧降低。 Zr在7108中时，最大速度随Sc含量的增加而略有降低。至于抗再结晶性，目前条件下Sc在6082中没有很强的作用。对于rn7108合金，与仅添加Sc或仅添加Zr相比，同时添加Sc和Zr会导致更高的抗再结晶性。 Sc的加入对6082合金的力学性能有一些影响，这可能与再结晶程度的差异有关。

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