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EFFECT OF SOME HEAT TREATMENTS ON CAVITATION EROSION RESISTANCE OF THE EN AW - 6082 ALLOY

机译:一些热处理对腹膜蚀抗蚀性抗性的影响

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In its pure form, aluminum is relatively soft, with poor mechanical strength and weak cavitation erosion characteristics. The alloys series 6xxx have as main elements alloying silicon and magnesium, which improve their mechanical properties, making them competitive for many structural applications. The present paper establishes the correlation between the heat treatment, the microstructure and the mechanism of cavitation erosion damage of a deformable alloy, aluminum base. Cavitation tests were conducted on a vibrator with piezo-ceramic crystals that meet ASTM G32 - 2010 requirements. The metallographic examinations by optical microscopy and scanning electron microscopy, coupled with the hardness tests, highlighted the microstructural changes in a cavitationally affected material and the cracks propagation mode.
机译:在其纯净的形式下,铝相对柔软,机械强度差和弱空化腐蚀特性。 合金系列6xxx具有主要元素合金化硅和镁,可提高其机械性能,使其具有许多结构应用的竞争力。 本文建立了可变形合金,铝基铝基的热处理,微观结构和空化腐蚀机理之间的相关性。 在具有符合ASTM G32-20 2010要求的压电陶瓷晶体的振动器上进行空化试验。 通过光学显微镜和扫描电子显微镜的金相检查与硬度测试耦合,突出了空化影响材料和裂缝传播模式的微观结构变化。

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