The aim of this project is to study the lightweight potential of density re- duced steels, titanium alloys, and new generation of steel grades (DP600 und TRIP700). The lightweight design of several components will be compared. The influence of alloying elements and the mechanical properies (den- sity, E-modulus, Rm, …) will help to describe the the lightweight potential. Several typical components will be designed, calculated and weight of com- ponents assessed. The obtained results will be interpreted and discussed in this work. If laboratory is available, hardness and microstructure study can be made. 2 Aims and Scientific Questions • Aspects of the study – Literature survey: list the mechanical properties of density re- duced steels, titanium and high-strength steels (comparison, mi- crostructures, alloying, liste), – Calculation of several components using steels, Ti and density reduced steels (E/density, Rm/density…. eg. automotive compo- nents). – Comparison and light-weight properties, compare the studied ma- terials for given applications. 1 3 Experimental Procedure and Methods • List of experimental methods and tools: – Phase diagrams, – Calculationsofcomponents(ExampleFraunhoferReportLightweight design using modern materials) – Plot Rm versus density, E versus density,… (Ashby type), – Plot weight of components using steel, Ti and low density steels. • List of materials – Low density steels (Fe-C-Mn, Al,… alloys) for automotive and aircraft applications, – DP600 and TRIP700 steels (AHSS), – Titanium alloys (automotive, aircraft usage, e.g. TiAl6V4,…).
