本文提出了一种非晶合金的非晶形成能力(GFA)新判据β',表达式为(Tg/Tx-Tg/T1/η),其中Tg,Tx,T1和η分别为合金的玻璃转变温度、起始晶化温度、液相线温度和常系数.新判据β'的理论基础是非晶形成能力的本质涵义,即GFA不仅表征合金熔体形成非晶的能力,也表征非晶合金在受热条件下的稳定性.采用文献报道的大量数据,对新判据和现有判据的预测能力进行了比较.结果表明,跟其他现有判据相比,新提出的β'判据与临界冷速具有最高的线性相关系数,能更好地预测出合金的非晶形成能力.
参考文献
| [1] | Turnbull D .[J].Contemporary Physics,1969,10(05):473. |
| [2] | Inoue A et al.[J].Journal of Non-Crystalline Solids,1993,156--158(Part 2):473. |
| [3] | Lu Z P et al.[J].Acta Materialia,2002,50(13):3501. |
| [4] | Lu Z P et al.[J].Physical Review Letters,2003,91:115505. |
| [5] | Mondal K;Murty BS .On the parameters to assess the glass forming ability of liquids[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2005(16/17):1366-1371. |
| [6] | Du X H et al.[J].Journal of Applied Physics,2007,101:086108. |
| [7] | Chen QJ;Shen J;Zhang DL;Fan HB;Sun J;McCartney DG .A new criterion for evaluating the glass-forming ability of bulk metallic glasses[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2006(1-2):155-160. |
| [8] | Fan GJ;Choo H;Liaw PK .A new criterion for the glass-forming ability of liquids[J].Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites,2007(26):102-107. |
| [9] | Yuan Z Z et al.[J].Journal of Alloys and Compounds,2008,459:251. |
| [10] | Long Z L et al.[J].Journal of Alloys and Compounds,2009,475:207. |
| [11] | Lu Z P et al.[J].Intermetallics,2007,15:618. |
| [12] | Takeuchi A et al.[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2001,304--306:446. |
| [13] | Men H et al.[J].Scripta Materialia,2002,46:699. |
| [14] | Xin D W et al.[J].The Chinese Journal of Nonferrous Metals,2004,14(02):168. |
| [15] | Chen Q J et al.[J].Journal of Alloys and Compounds,2006,407:125. |
| [16] | Davies H A;Cantor B.Rapidly Quenched Metals Ⅲ[M].The Metals Soc,London,1978 |
| [17] | Hu X et al.[J].Acta Materialia,2003,51(02):561. |
| [18] | Fan G J et al.[J].Acta Materialia,2004,52(02):667. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%