Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5456036 | Materials Science and Engineering: A | 2017 | 5 Pages |
Abstract
The effects of nitrogen on both the glass forming ability (GFA) and mechanical properties of Zr-based bulk metallic glasses were studied experimentally. The results show that the doping of nitrogen could induce the precipitation of N-rich Zr3Ni-type crystals, and the precipitated crystals don't trigger heterogeneous nucleation. Therefore, the remainder molten metal contains very lower nitrogen content and keeps good glass formation ability. Based on this, using the precipitated β-Zr(Ti, Nb) acted as a solid solvent for absorbed nitrogen, the optimum mechanical properties of bulk metallic glass composites can be obtained by doping an appreciate amount of nitrogen. This finding not only gives us a clue to avoid the detriment of light interstitial impurity to glass formation, but also opens a window to adjust the mechanical properties of the composites.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
J.L. Cheng, G. Chen, W. Zhao, Z.Z. Wang, Z.W. Zhang,