论文标题
Trace Cu在锻造AL-MG合金中的好处
The Benefits of Trace Cu in Wrought Al-Mg Alloys
论文作者
论文摘要
通过显微镜，机械测试和建模的组合，评估了含有3wt。％mg和0.5wt。％CU的预染色和老化的Al-MG-CU合金的软化和增强贡献。用于工作硬化响应的精致现象学模型，该模型占回收和降水的单独影响，被证明适合明确确定这些合金中的降水硬化贡献。值得注意的是，发现这些合金的机械响应不会受到CU含量（在CU含量低的含量状态），预染料前水平或衰老温度的强烈影响，这意味着合金相对于组成的变化具有牢固的作用。从包括烘烤油漆的应用中，基于“回收友好”组成的合金设计概念的角度，这很有趣。
The softening and strengthening contributions in pre-deformed and aged Al-Mg-Cu alloys containing 3wt.%Mg and 0.5wt.%Cu are evaluated by a combination of microscopy, mechanical testing and modelling. A refined phenomenological model for the work hardening response, accounting for the separate effects of recovery and precipitation, is shown to be suitable for an unambiguous determination of the precipitation hardening contribution in these alloys. Significantly, it is found that the mechanical response of these alloys is not strongly impacted by Cu content (in the low Cu content regime), pre-deformation level or aging temperature meaning that the alloys are robust with respect to variations in composition. This is interesting from the perspective of alloy design concepts based on `recycling friendly' compositions in applications that include paint-baking.
