采用差热分析法(DTA)研究了具有高玻璃形成能力的Fe41Co7Cr15Mo14Y2C15B6块体非晶合金的变温晶化动力学.由热分析曲线得到玻璃转变温度Tg、晶化起始温度Tx和晶化峰值温度Tp1、Tp2,这些特征温度具有明显的动力学效应.运用Kissinger法和Ozawa法分别计算出不同升温速率下该Fe基块体非晶合金的玻璃转变激活能Eg、晶化激活能Ex与激活能Ep1、Ep2.采用Kissinger方法和Ozawa方法解释了此大块非晶合金具有高的热稳定性的热力学机制.
参考文献
| [1] | Yao K F;Zhang C Q .[J].Applied Physics Letters,2007,90(06):1901. |
| [2] | Gu X J;Joseph Poon S .[J].Journal of Materials Research,2007,22(02):344. |
| [3] | Chen Q J;Shen J;Zhang D L et al.[J].Journal of Materials Research,2007,22(02):358. |
| [4] | Chen QJ;Shen J;Fan HB;Sun JF;Huang YJ;Mccartney DC .Glass-forming ability of an iron-based alloy enhanced by Co addition and evaluated by a new criterion[J].Chinese physics letters,2005(7):1736-1738. |
| [5] | 李波,李志远,熊建钢,黄安国,邢丽.基于DSC技术的铜基非晶合金变温动力学的研究[J].电焊机,2005(08):51-53. |
| [6] | Mehta N;Kumar A .A study of thermal crystallization in glassy Se80Te20 and Se80In20 using DSC technique[J].Journal of thermal analysis and calorimetry,2006(2):401-405. |
| [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] | 惠希东;陈国良.块体非晶合金[M].北京:化学工业出版社,2007:46. |
| [9] | Chen Q J;Fan H B;Shen J et al.[J].Journal of Alloys and Compounds,2006,407(1-2):125. |
| [10] | Kissinger H E .[J].Analytical Chemistry,1957,29(11):1702. |
| [11] | Ozawa T .[J].Journal of Thermal Analysis,1970,2(03):301. |
| [12] | Chen Q J;Zhang D L;Shen J et al.[J].Journal of Alloys and Compounds,2007,427(1-2):190. |
| [13] | Qin F X;Zhang H F;Ding B Z et al.[J].Intermetallics,2004,12(10-11):1197. |
| [14] | 郝亚非 .Cu-Zr基块体非晶的晶化和力学性能[D].秦皇岛:燕山大学,2006. |
| [15] | 邢大伟,黄永江,沈军,杨黎,孙剑飞.ZrCuNiAlTi块体非晶合金的变温晶化行为[J].稀有金属材料与工程,2007(07):1181-1184. |
| [16] | Chen G;Ferry M .[J].Transactions of Nonferrous Metals Society of China,2006,16(04):833. |
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%