Production of aluminum-steel-compounds by means of twin-roll casting

通过双辊铸造生产铝钢复合材料

基本信息

批准号：
241421068
负责人：
Professor Dr.-Ing. Mirko Schaper
金额：
--
依托单位：
Lehrstuhl für Werkstoffkunde (LWK)
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2013
资助国家：
德国
起止时间：
2012-12-31 至 2015-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/241421068?language=en
关键词：
Production aluminum steel compounds means

项目摘要

Compound materials are used for many modern applications such as lightweight vehicle construction. The combination of different materials enables the achievement of elsewise unattainable properties. Of particular interest are sheet-form material compounds at which aluminum-steel hybrids represent a common material combination. The creation of a high-quality material connection between the above-mentioned materials is difficult due to the formation of a rapidly growing layer of mostly brittle intermetallic phases. If this intermetallic layer exceeds a thickness of 10 microns the stability of the diffusion zone under mechanical load and the connection strength are considerably reduced. Hence, the adaption of compound materials is subject to the objectives of a diffusion process control to ensure high bond strength. The twin-roll strip casting process is one of the most modern sheet metal fabrication methods from an ecological and economic point of view. In this method, thin strips with a thickness between 1 and 8 mm are cast directly from the melt. However, this method is used only for experimental composite production between different aluminum alloys so far. The aim of the proposed project is a fundamental investigation concerning the diffusion processes to determine appropriate microstructures and mechanical properties of an aluminum-steel compound under the specific conditions of the twin-roll strip casting process.

复合材料用于许多现代应用，例如轻型车辆结构。不同材料的组合能够实现其他方式无法实现的特性。特别令人感兴趣的是片状材料化合物，其中铝钢混合材料代表了常见的材料组合。由于主要是脆性金属间相的快速生长层的形成，在上述材料之间建立高质量的材料连接是困难的。如果该金属间层的厚度超过10微米，则机械负载下扩散区的稳定性和连接强度会显着降低。因此，复合材料的适应取决于扩散过程控制的目标，以确保高粘合强度。从生态和经济角度来看，双辊带材连铸工艺是最现代的金属板材制造方法之一。在此方法中，厚度在 1 至 8 毫米之间的薄带材直接从熔体中铸造而成。然而，迄今为止，该方法仅用于不同铝合金之间的实验性复合生产。该项目的目的是对扩散过程进行基础研究，以确定双辊薄带连铸工艺特定条件下铝钢化合物的适当微观结构和机械性能。