Acta Metallurgica Sinica (English Letters) ›› 2018, Vol. 31 ›› Issue (9): 953-962.DOI: 10.1007/s40195-018-0722-8
Special Issue: 2018年复合材料专辑
• Orginal Article • Previous Articles Next Articles
En-Yang Liu1,2(), Si-Rong Yu1, Ming Yuan1, Fan-Guo Li1, Yan Zhao1, Wei Xiong1
Received:
2017-12-08
Revised:
2018-01-26
Online:
2018-09-10
Published:
2018-09-29
En-Yang Liu, Si-Rong Yu, Ming Yuan, Fan-Guo Li, Yan Zhao, Wei Xiong. Effects of Semi-solid Isothermal Heat Treatment on Microstructures and Damping Capacities of Fly Ash Cenosphere/AZ91D Composites[J]. Acta Metallurgica Sinica (English Letters), 2018, 31(9): 953-962.
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Element | Al | Zn | Mn | Si | Cu | Fe | Ni | Mg |
---|---|---|---|---|---|---|---|---|
Mass fraction (%) | 9.03 | 0.66 | 0.20 | 0.038 | 0.0016 | 0.0026 | 0.00078 | Bal. |
Table 1 Chemical composition of AZ91D magnesium alloy
Element | Al | Zn | Mn | Si | Cu | Fe | Ni | Mg |
---|---|---|---|---|---|---|---|---|
Mass fraction (%) | 9.03 | 0.66 | 0.20 | 0.038 | 0.0016 | 0.0026 | 0.00078 | Bal. |
Fig. 6 Semi-solid microstructures of FAC/AZ91D composites after isothermal heat treatment at different temperatures and held for 40 min: a 520 °C, b 550 °C, c 570 °C, d 580 °C.
Fig. 9 Variations of the damping capacities with strain amplitude at room temperature of FAC/AZ91D composites after heat treatment at different temperatures for 40 min.
Temperature (°C) | C1 (×10-6) | C2 (×10-4) |
---|---|---|
As-cast | 12.6723 | 1.2497 |
520 | 12.9321 | 1.1333 |
550 | 13.2349 | 1.1506 |
570 | 13.5510 | 1.2169 |
580 | 17.0485 | 1.3713 |
Table 2 Values of parameters obtained from G-L plots of FAC/AZ91D composites after isothermal heat treatment at different temperatures
Temperature (°C) | C1 (×10-6) | C2 (×10-4) |
---|---|---|
As-cast | 12.6723 | 1.2497 |
520 | 12.9321 | 1.1333 |
550 | 13.2349 | 1.1506 |
570 | 13.5510 | 1.2169 |
580 | 17.0485 | 1.3713 |
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