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:
Viscous flow behavior in supercooled liquid region of as-cast and pre-annealedZr55Cu30Al10Ni5 bulk metallic glasses has been examined by using a penetration viscometer underhigh-speed heating rate of 20, 200 and 400 °C/min. Applied load for the cylindrical-shaped penetrationindenter with a diameter of 1 mm was varied from 0.049 N to 0.294 N. Viscosity was quiteindependent of these applied loads. By pre-annealing the bulk metallic glasses at 400 °C, the densityof the glasses increased, while the viscosity and the activation energy for viscous flow in theirsoopercooled liquid decreased with the pre-annealing treatments. Corresponding measurements of thedifferential thermal calorimetry (DSC) have been also done
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.561-565.1271.pdf
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