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

• 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; Production; aluminum; steel; compounds; means

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化的应用，例如轻型车辆结构。不同材料的组合能够实现其他无法获得的特性。特别令人感兴趣的是铝钢杂种代表常见材料组合的材料材料化合物。由于形成了迅速生长的大部分金属间相，因此很难在上述材料之间建立高质量的材料连接。如果该金属间层超过10微米的厚度，则在机械载荷下扩散区的稳定性会大大降低。因此，复合材料的适应受到扩散过程控制的目标，以确保高粘结强度。从生态和经济的角度来看，双卷带铸造过程是最现代的金属制造方法之一。在这种方法中，厚度在1到8 mm之间的细条直接从熔体中铸造出来。但是，该方法仅用于到目前为止不同的铝合金之间的实验复合产生。拟议项目的目的是针对在双滚带铸造过程的特定条件下确定铝钢化合物的适当微观结构和机械性能的基本研究。