HREM study of crystal-amorphous transformation of Cu-Ti multilayers by cold-rolling

Amorphous alloys have been of scientific interest for more than three decades because of their improved properties (physical, mechanical, magnetic, corrosion, etc.) as compared with those of the same alloys in the crystalline states. Recently, solid-state reactions have been shown to be a potential technology for synthesis of amorphous metallic alloys. While different mechanisms of amorphization have been proposed, the real process is still in debate. To study the amorphization process in more detail, information of structural transformation from crystalline to amorphous states during the processing (e.g., mechanical alloying) is essential. This paper presents an interfacial study of Cu and Ti foils by cold-rolling.