RUSZ Stanislav VSB - Technical University

The Influence of the SPD Process on Deformation Behavior and Mechanical Properties of the Obtained Al Alloys

Co-authors CIZEK, L., TYLSAR, S., SALAJKA, M., KEDROĊ‡, J., MALANIK, K. , DONIC, T., HADASIK, E., KLOS, M.

Currently, technological progress in many modern industries requires in implementation of new types of technical materials and related development of new manufacturing technologies that bring both enhancement of service properties of final products, as well as their wider implementation into engineering practice, including the associated energy savings. One possibility is also a constant increasing of consumption of non-ferrous metals. Sustainable development of human society is subject to a maximum economy of non-renewable sources of energy and raw materials, especially metallic ones. One of the ways for achieving this goal, in addition to recycling waste alloys based on aluminium, copper and magnesium, is systematic reduction of their consumption by increasing their quality and service life of utility objects and structures made from them. One of the ways to the more effective use of metallic materials is their processing by forming. At present in this the area the use of the process of severe plastic deformation (SPD process), leading to a refinement of the structure (materials with UFG structure) and thus to achievement of higher level of their utility value, is expanding. For comparison of the influence of geometry of the ECAP tool on structure refining of the alloys AlMn1Cu and AZ31 three specially made ECAP tools were used, differing mainly by their design. It is analyzed the influence of the number of passes through the ECAP tool on the course of stress-strain curves and the hardness value achieved.

Back