Driven by a range of environmental concern and social pressure backed by legislation, there is a move towards reducing weight in road vehicles. These requirements led to considerable changes in car's design in the last decade and will lead to further innovations. The use of light materials, such as aluminium, magnesium and metal matrix composites (MMCs) can potentially help the automotive industry to meet some of the future requirements. Low-cost particulate reinforced aluminium MMCs, in particular, offer attractive mechanical properties, such as high specific stiffness, strength and good wear resistance, for lighter components design. These materials are isotropic and they can be processed using most technologies developed for monolithic alloys. One of the main drawbacks of these materials is the low ductility and low toughness, which limits their applications for safety car's components. Previous research showed that the optimum thermomechanical processing could improve the ductility of the particulate reinforced aluminium MMCs. The aim of the present work is to identify changes in microstructure occurring through forging process and to evaluate the effects of forging process on mechanical properties of 6061-10 % Al2O3 MMC. The specific forge trial studied is one from an extruded bar to a H-section part, which is a representative of typical section of load bearing car components.
Mechanical properties and microstructure of forged aluminium MMC compared with extruded materials
Der Vergleich mechanischer Eigenschaften und der Mikrostruktur eines Metallmatrix-Verbundstoffes aus geschmiedetem Aluminium und Spritzmaterialien
1994
7 Seiten, 6 Bilder, 1 Tabelle, 4 Quellen
Aufsatz (Konferenz)
Englisch
Materialforschung , Vergleich (System) , mechanische Eigenschaft , Metallmatrix , Verbundwerkstoff , Gewichtsverminderung , Aluminium , Magnesium , Automobilindustrie , Faserverstärkung , Verschleißwiderstand , Fahrzeugsicherheit , Schmieden , Strangpressen (Metall) , Mikrostruktur , Vergleichsmessung , Leistungsbewertung , Forschung , Vergleich , faserverstärkter Werkstoff , Strangpressen , Bewertung , Fahrzeugtechnik
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