Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1816222 | Physica B: Condensed Matter | 2007 | 4 Pages |
Abstract
The dynamic viscosity measurements are performed for Al–Cu alloy melts with different compositions using an oscillating-cup viscometer. The results show that the viscosities of Al–Cu alloy melts increase with the copper content increasing, and also have a correlation with the correlation radius of clusters, which is measured by the high-temperature X-ray diffractometer. It has also been found that the fragilities of superheated melts (M) of hypereutectic Al–Cu alloys increase with the copper content increasing. There exists a relationship between the fragility and the structure in Al–Cu alloy melts. The value of the M reflects the variation of activation energy for viscous flow.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
Xiaoqian Lv, Xiufang Bian, Tan Mao, Zhenkuan Li, Jing Guo, Yan Zhao,