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首页> 外文会议>International Conference on Aluminum Alloys >CORROSION FATIGUE MECHANISM ON HOT-FORGED AA6082 ALUMINUM ALLOY
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CORROSION FATIGUE MECHANISM ON HOT-FORGED AA6082 ALUMINUM ALLOY

机译：热锻AA6082铝合金腐蚀疲劳机理

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An attempt has been made to understand the corrosion fatigue phenomenon in AA6082 aluminum hot-forged parts. Fatigue and corrosion fatigue experiments of forged parts produced by two different feedstock materials have been performed in the lab air and in a corrosive 3.5% NaCl solution under different stress levels. The scanning electron microscopy was used to study the rupture and to identify failure modes. With corrosion and mechanical stress working together, the failure occurred earlier in the specimens subjected to a 3.5% NaCl solution as compared to those subjected to the lab air irrespective of the material forms (cast-forged or extruded-forged). The corrosion fatigue performance of these specimens with different stress levels as well as the crack initiation and propagation were elaborated. It was found that there is no significant variation in corrosion fatigue resistance for final cast-forged and extruded-forged products.
机译：已经尝试了解AA6082铝热锻件中的腐蚀疲劳现象。通过两种不同原料材料产生的锻造和腐蚀疲劳实验已经在实验室空气中进行，并在不同应力水平下进行腐蚀性3.5％NaCl溶液。扫描电子显微镜用于研究破裂并识别失效模式。随着腐蚀和机械应力在一起，与对实验室空气的那些相比，试样的试样上发生的故障发生在3.5％的NaCl溶液中，而不管材料形式（锻造锻炼或挤出或挤压锻造）。阐述了这些标本具有不同应力水平的腐蚀疲劳性能以及裂纹引发和繁殖。结果发现，最终铸造和挤出的锻造产品对腐蚀性耐腐蚀性没有显着的变化。

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