Characterisation of the bonding zone of co‐extruded aluminium‐titanium‐compounds
Characterisation of the bonding zone of co‐extruded aluminium‐titanium‐compounds
复制标题
共挤铝钛化合物粘合区的表征
DOI：
10.1002/mawe.201200947
复制
发表时间：
2012
影响因子：
1.1
通讯作者：
Fr.-W.
中科院分区：
文献类型：
--
作者：
Striewe;Grittner;von Hehl;Hunkel;Stelling;Schimanski;Schaper;Fr.-W.
不同金属材料的组合使得能够在全球和局部范围内设计具有量身定制特性的轻质结构，并为先进的解决方案提供了巨大的潜力，特别是在飞机和汽车领域。然而，在传统的熔融连接之后，例如，在激光束焊接之后，可能出现热影响区、孔隙或晶粒生长，并损害局部性能。相比之下，通过共挤出等固态连接技术可以避免这些缺点。因此，共挤为铝基和钛基合金的长材产品提供了一种有吸引力的解决方案。目前的研究主要集中在铝和钛的共挤，其中钛是插入铝型材中的增强元素。在当前的研究项目的背景下，金属间化合物层的形成和机械性能进行了详细研究。此外，还研究了热处理对金属间化合物层和力学性能的影响。力学性能通过拉伸试验测定。用光学显微镜、扫描电子显微镜和电子探针对金属间化合物层进行了分析。在共挤压过程中，铝和钛之间的结合区会形成厚度为1 μm至3 μm的金属间化合物层。铝合金中的合金元素在该层中富集。随后的热处理导致铝的时效硬化，然而，它不影响层厚度。拉伸试样的破坏部位不同。热处理导致增加的拉伸强度值，但也导致降低的屈服强度水平。
The combination of different metallic materials enables the design of lightweight structures with tailor‐made properties at global as well as local scale and offers great potential for advanced solutions especially for the aircraft and automobile sector. However, after conventional fusion joining, e. g. after laser beam welding, heat affected zones, porosity or grain growth may occur and impair the local properties. In contrast, by solid‐state joining techniques like co‐extrusion these disadvantages can be avoided. Therefore co‐extrusion exhibits an attractive solution for long products combining aluminium and titanium based alloys. Current investigations have been focused on the co‐extrusion of aluminium and titanium, where titanium is the reinforcing element that is inserted in aluminium profiles. In the context of a current research project the formation of the intermetallic layer and the mechanical properties were investigated in detail. In addition to that the influence on the intermetallic layer and the mechanical properties on heat treatment were investigated. The mechanical properties were determined by tensile tests. The intermetallic layers were analysed with light optical microscope, scanning electron microscope and electron probe micro analysis. During the co‐extruding an intermetallic layer with a thickness of 1 μm to 3 μm arises in the bonding zone between aluminium and titanium partner. Alloying elements from the aluminium alloy enrich in this layer. A subsequent heat treatment leads to an age hardening of the aluminium, however, it does not affect the layer thickness. The tensile tests specimen show different failure locations. The heat treatment leads to increased tensile strength values, but also to a decreased yield strength level.
Herstellung verbundverstärkter ultraleichte Tragwerke durch Strangpressen 铝型材
影响因子：
1.1
作者：
M. Kleiner;M. Schomäcker;M. Schikorra;A. Klaus
通讯作者：
A. Klaus
通过有限元分析对挤压过程中的剪切区进行定位
DOI：
10.4028/www.scientific.net/kem.424.221
发表时间：
2010
期刊：
Key Engineering Materials
影响因子：
--
作者：
Kammler
通讯作者：
Kammler