Oxidation and crystallization of Zr-based bulk metallic glass due to machining
Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
Author(s)
Detail(s)
| Original language | English |
|---|---|
| Pages (from-to) | 195-204 |
| Journal / Publication | Intermetallics |
| Volume | 12 |
| Issue number | 2 |
| Publication status | Published - Feb 2004 |
| Externally published | Yes |
Link(s)
Abstract
Bulk metallic glass was subjected to extreme deformation conditions during machining operation. The flash temperature, oxidation and crystallization within chips from a Zr-based bulk metallic glass were investigated. A near-infrared spectrometer was used to capture the light emission from the tool-chip interface allowing the calculation of the temperature. Very high temperatures in the 2400-2700 K range were observed and associated with the light emission and oxidation in the chips. X-ray diffraction analysis revealed oxidation of chips machined at high cutting speeds. Optical micrographs of polished and etched chip cross-sections showed a dendritic pattern due to crystallization. Using a field emission gun SEM, amorphous and crystalline regions were analyzed. This study demonstrates the oxidation and crystallization of bulk metallic glass during machining. © 2003 Elsevier Ltd. All rights reserved.
Research Area(s)
- B. Metallic glasses, B. Oxidation, C. Machining, F. Scanning, F. X-ray diffraction
Citation Format(s)
Oxidation and crystallization of Zr-based bulk metallic glass due to machining. / Bakkal, Mustafa; Liu, Chain T.; Watkins, Thomas R.; Scattergood, Ronald O.; Shih, Albert J.
In: Intermetallics, Vol. 12, No. 2, 02.2004, p. 195-204.Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review
