Mechanical behavior of Au-based metallic glass in micro-scale at ambient and elevated temperatures
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 2795-2800 |
Journal / Publication | Materials Transactions |
Volume | 50 |
Issue number | 12 |
Online published | 11 Nov 2009 |
Publication status | Published - 2009 |
Externally published | Yes |
Link(s)
Abstract
The Au based amorphous micro-pillars are fabricated by using focus ion beam (FIB) and tested in micro-compression at ambient and elevated temperatures from 300 to 408 K. The room temperature strength of current micro-pillars could reach to 1600-2000 MPa, much higher than the measured strengths for the 3 mm bulk compression specimen. The stress increment can be rationalized by the Weibull statistics. The current Au based micro-pillars maintain inhomogeneous deformation with one (at most two) principal shear band from 300 up to 393 K. At or above Tg (403 and 408 K), the micro-pillars are deformed in a homogeneous manner without the trace of any shear band. For micro-forming, it should be born in mind that there would be apparent stress increment while forming micro-or nano-scaled patterns and pieces.
Research Area(s)
- Gold alloys, Mechanical properties, Metallic glasses, Micro compression, Micro-pillars
Citation Format(s)
Mechanical behavior of Au-based metallic glass in micro-scale at ambient and elevated temperatures. / Lee, C. J.; Lai, Y. H.; Tang, C. W. et al.
In: Materials Transactions, Vol. 50, No. 12, 2009, p. 2795-2800.
In: Materials Transactions, Vol. 50, No. 12, 2009, p. 2795-2800.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review