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Effect of mechanical alloying and Ti addition on solution and ageing treatment of an AA7050 aluminium alloy

机译：机械合金化和添加Ti对AA7050铝合金固溶和时效处理的影响

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In this work, solution heat treatments at different temperatures were performed in a commercial based AA7050 aluminium alloy, with and without titanium addition, produced by mechanical alloying and hot extrusion with the aim to investigate the effect of titanium addition and mechanical alloying in the precipitates stability. The same heat treatment conditions were used in a reference sample obtained from a commercial AA7050 alloy. Solution heat treated samples were characterised by differential scanning calorimetry (DSC), optical microscopy and hardness test. Once the better temperature for the solution treatment of modified alloys was defined, the ageing curve at 120°C was obtained to verify the effect of milling and Ti addition in the precipitation and in the maximum values of hardness obtained for the alloys.
机译：在这项工作中，在通过机械合金化和热挤压生产的，添加和不添加钛的市售AA7050铝合金中，在不同温度下进行固溶热处理，旨在研究钛添加和机械合金化对沉淀物稳定性的影响。 。从商业AA7050合金获得的参考样品中使用相同的热处理条件。固溶热处理过的样品通过差示扫描量热法（DSC），光学显微镜和硬度测试进行了表征。一旦确定了用于改性合金固溶处理的更好温度，就可以得到120°C的时效曲线，以验证铣削和添加Ti对合金的析出和硬度最大值的影响。

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