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Effect process flow on material properties of modified 3003 aluminium alloy developed for brazing applications

机译：工艺流程对钎焊应用改性3003铝合金材料性能的影响

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摘要

Al - Mn alloys are used as fin materials in various brazing applications of automotive industry. With the addition of zinc, these alloys are utilized as sacrificial materials to protect tubes in heat exchanger systems. Twin-roll casting (TRC) is one of the techniques to produce sheet/foil aluminum alloys. Materials can be produced in H1X or H2X temper depending on the downstream processes applied. These two different designations are used to emphasize the final process steps. H1X (strain-hardened) production includes an intermediate annealing conducted at a critical thickness prior to final foil rolling pass whereas H2X production is finalized with a back-annealing. If appropriate process parameters are applied, both processes result in similar mechanical properties although they exhibit different microstructural properties. The aim of this study is to reveal the effects of process flow on material properties of a modified 3003 alloy. Microstructures of materials were investigated by employing metallographic techniques at different thicknesses throughout the downstream processes. Complementary studies were carried out with electro-chemical potential measurements, mechanical tests and sagging resistance measurements before and after brazing simulations.
机译：Al-Mn合金在汽车工业的各种钎焊应用中用作翅片材料。在添加锌的情况下，这些合金被用作保护热交换器系统中管子的牺牲材料。双辊铸造（TRC）是生产板材/铝箔铝合金的技术之一。可以采用H1X或H2X调质生产材料，具体取决于所应用的下游工艺。这两个不同的名称用于强调最终处理步骤。 H1X（应变硬化）生产包括在最终箔轧制道次之前以临界厚度进行的中间退火，而H2X生产则通过反向退火来最终确定。如果应用适当的工艺参数，尽管两种工艺表现出不同的微观结构性能，但它们都将产生相似的机械性能。这项研究的目的是揭示工艺流程对改性3003合金材料性能的影响。在整个下游工艺中，通过采用金相技术研究了不同厚度的材料的微观结构。在钎焊模拟之前和之后，通过电化学势能测量，机械测试和抗流挂性测量进行了补充研究。

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