ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Multi-layered composite sheet materials with nominal composition of Ti-46Al-9Nb(at.%) were successfully processed from Ti, Al and Nb elemental foils using the cold roll bondingtechnique. To promote the formation of intermetallic compounds in these composites, annealing at600˚C was employed for specimens subjected to various amounts of reduction. The microstructuresand phases that formed after cold rolling, the first annealing stage, and the second annealing stagewere characterized using scanning electron microscopy (SEM) equipped with an energy dispersivex-ray spectrometer (EDS), transmission electron microscopy (TEM), and x-ray diffraction (XRD).Good bonding was achieved for all rolled samples with a threshold reduction in thickness of about35% in the first rolling pass. No new phases were formed in the cold rolling stage. Annealing stagedid promote the formation of the TiAl3 and NbAl3 phases at the interfaces
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.791.pdf
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