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首页> 外文会议>International Conference on Advanced Materials Processing Technologies >MICROSTRUCTURAL CHARACTERISATION OF A P/M Al-Mg-Zr ALLOY AFTER THERMAL TREATMENTS
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MICROSTRUCTURAL CHARACTERISATION OF A P/M Al-Mg-Zr ALLOY AFTER THERMAL TREATMENTS

机译：热处理后P / M Al-Mg-Zr合金的微观结构表征

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摘要

In the last decade, light materials have been studied thoroughly and used in components of pieces in the automobile, naval and aerospace industries. Their application makes possible: to reduce the mass, to increase the load capacity, increase of the speed and, and when there is possibility, to improve the mechanical properties. Among those materials, the aluminium-magnesium alloys have prominence special, due not only to the lightness of the material, but also to certain mechanical properties and reciclability. The addition of zirconium in these alloys make it less susceptible to fatigue corrosion crack and it aids in the control of the natural ageing, that causes the loss of the ductility. However the solubility of the zirconium in the Al-Mg alloys is low, not exceeding 0,28% for alloys manufactured by conventional metallurgy; and the use of not conventional techniques (powder metallurgy) it can increase to 2,5 to 5 times the limit of normal solubility. The objective of this work is the microstructural characterisation by scanning electron microscopy, of an Al-2%Mg-0.6%Zr alloy (values in weight) produced by powder metallurgy (hot compaction and extrusion technique) after thermal treatments.
机译：在过去十年中，已经彻底研究了轻质材料，并用于汽车，海军和航空航天行业的件组件。他们的应用成为可能：为了降低质量，增加负载能力，增加速度，以及有可能的，提高机械性能。在这些材料中，铝 - 镁合金具有突出特殊性，不仅是由于材料的亮度，而且由于某些机械性能和可循环性。在这些合金中加入锆使其不易易于疲劳腐蚀裂纹，并且有助于控制天然老化，导致延展性的损失。然而，锆在Al-Mg合金中的溶解度低，不超过常规冶金制造的合金的0.28％;并且使用不常规技术（粉末冶金）可以增加至正常溶解度极限的2,5至5倍。该作品的目的是通过扫描电子显微镜，通过粉末冶金（热压实和挤出技术）产生的Al-2％Mg-0.6％Zr合金（重量值）通过粉末冶金（热压实和挤出技术）的微观结构表征。

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