Comparison of bulk metallic glass formation between Cu-Hf binary and Cu-Hf-Al ternary alloys
文献类型：期刊论文
| 作者 | P. Jia ; J. Xu |
| 刊名 | Journal of Materials Research
 |
| 出版日期 | 2009 |
| 卷号 | 24期号:1页码:96-106 |
| 关键词 | supercooled liquid region mold casting method ni-nb-sn forming ability zr-ti mechanical-properties amorphous-alloys thermal-stability eutectic reaction critical size |
| ISSN号 | 0884-2914 |
| 中文摘要 | Optimized compositions for bulk metallic glass (BMG) formation have been determined for the Cu-Hf binary and Cu-Hf-Al ternary systems. The Cu-Hf-Al BMG-forming composition region is identified to correlate with the (L -> Cu(10)Hf(7) + CuHf(2) + CuHfAl) eutectic reaction. The eutectic temperature is reduced by nearly 50 K relative to that of the binary eutectic, demonstrating the significant role of the third element Al in stabilizing the liquid. The fragility parameter D* of the Cu(55)Hf(45) binary and Cu(49)Hf(42)Al(9) ternary supercooled liquid was determined from relaxation time measurements, indicating that Al incorporation also leads to a "stronger" liquid. The combination of these thermodynamic and kinetic effects is responsible for the dramatic enhancement of glass-forming ability from the Cu-Hf binary to the Cu-Hf-Al ternary. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31993]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | P. Jia,J. Xu. Comparison of bulk metallic glass formation between Cu-Hf binary and Cu-Hf-Al ternary alloys[J]. Journal of Materials Research,2009,24(1):96-106. |
| APA | P. Jia,&J. Xu.(2009).Comparison of bulk metallic glass formation between Cu-Hf binary and Cu-Hf-Al ternary alloys.Journal of Materials Research,24(1),96-106. |
| MLA | P. Jia,et al."Comparison of bulk metallic glass formation between Cu-Hf binary and Cu-Hf-Al ternary alloys".Journal of Materials Research 24.1(2009):96-106. |
入库方式： OAI收割
来源：金属研究所
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