| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7893465 | Corrosion Science | 2018 | 21 Pages |
Abstract
Zr53.8Cu29.1Ni7.3Al9.8 bulk metallic glass (ZCNA-BMG) and Zr52.8Cu29.1Ni7.3Al9.8Y1 bulk metallic glass (ZCNAY-BMG) were taken to elucidate the kinetic mechanism for the improvement in oxidation resistance upon the addition of yttrium over the temperature range of 400-500â¯Â°C. The oxidation kinetics of two BMGs both followed a multiple-stage parabolic-rate law, wherein ZCNAY-BMG exhibited a lower kp and thinner scales consisting of t-ZrO2, m-ZrO2, CuO, AlNi3, Y2O3 and some Al2O3 at T â¯â¥â¯450â¯Â°C. The Al2O3 phase was only observed in the scale of ZCNAY-BMG at 450â¯Â°C due to the crystallization, and resulted in the much lower oxidation rate.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
Shuaidan Lu, Shuchen Sun, Ganfeng Tu, Xiaoxiao Huang, Kuanhe Li,