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EBSD Study of Fe-Ni phases on a L4-L5 ordinary chondrite meteorite
Almeida, B.; Seixas, T. M.; Mendes, M. H.; Ferro, M. C.; Salgueiro da Silva, M. A.; Santos, J. F.; Almeida, F.; Diogo, Z.; Lopes, A. B.; Vieira, J.The research on interplanetary materials such as comets, meteors or meteorites contributes to understand the origin and evolution of our Solar System. They provide highly valuable information on the relation between the conditions of formation and their microstructure, chemical composition and magnetic properties. Orientation relationships of the Fe-Ni system and distribution of body-centered cubic kamacite-α,...
Retrogression and re-ageing of 7075 aluminium alloy : microstructural character...
Viana, Filomena; Pinto, A. M. P.; Santos, Henrique; Lopes, A. B.Industrial Summary: The 7075 aluminium alloy presents a low stress corrosion cracking strength when aged to achieve maximum mechanical strength, T6 temper; high stress corrosion cracking strength is attained with overageing, T7 temper; but with loss of mechanical strength. Retrogression and re-ageing treatments improves the stress corrosion behaviour of the alloy whilst maintaining the mechanical resistance of ...
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