Noga Piotr, Tuz Lechosław, Żaba Krzysztof, Zwoliński Adam
Faculty of Non-Ferrous Metals, AGH University of Science and Technology, A. Mickiewicza Av. 30, 30-059 Kraków, Poland.
Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, A. Mickiewicza Av. 30, 30-059 Kraków, Poland.
Materials (Basel). 2021 Jun 7;14(11):3124. doi: 10.3390/ma14113124.
Recycling of raw materials and is crucial for the production of new products for the global economy. The aim here is, on the one hand, to reduce energy consumption, and, on the other hand, to obtain materials with similar functional properties. The study undertook research on the possibility of processing AlSi11 aluminum chips by compaction and co-extruding to obtain a product in the form of a flat bar with mechanical properties not lower than those of the cast materials. The performed tests and the developed technique allowed to obtain flat bars with more favorable mechanical properties (Yield Strength YS ≥ 155 MPa; Ultimate Tensile Strength UTS ≥ 212 MPa) than the castings (YS ≥ 70 MPa ≥ 150 MPa). The weldability evaluation tests revealed that the material is susceptible to porosity. The presence of pores, which reduces the cross-section (up to 60%), reduces the tensile strength (up to 20 MPa). The typical joint structure and plasticity is obtained, which indicate the possibility of tensile strength improvement.
原材料的回收利用对于为全球经济生产新产品至关重要。其目的一方面是降低能源消耗，另一方面是获得具有相似功能特性的材料。该研究对通过压实和共挤出加工AlSi11铝屑以获得具有不低于铸造材料机械性能的扁钢形式产品的可能性进行了研究。所进行的测试和开发的技术使得能够获得具有比铸件更有利机械性能（屈服强度YS≥155MPa；抗拉强度UTS≥212MPa）的扁钢（铸件的屈服强度YS≥70MPa，抗拉强度UTS≥150MPa）。焊接性评估测试表明该材料易产生气孔。气孔的存在会减小横截面（高达60%），降低抗拉强度（高达20MPa）。获得了典型的接头结构和塑性，这表明有提高抗拉强度的可能性。
