采用铜模吸铸法制备了Cu50.3Zr49.7Nbx(x=0,2)块体非晶合金.利用示差扫描量热分析(DSC)研究了2at％Nb的添加对Cu-Zr非晶合金在过冷液相区等温晶化行为的影响.结果显示Cu基合金的等温晶化动力学符合JMA方程的定量描述.含微量Nb的合金具有更长的晶化孕育时间、更宽的反应放热峰以及更低晶化速率常数k和Avrami指数n,与此同时局域Avrami指数n随晶化体积分数的变化和Nb的添加而改变.这表明微量Nb添加在抑制合金形核,提高其热稳定性的同时,也改变了Cu基合金的等温晶化过程.
参考文献
| [1] | Inoue A;Zhang W;Tsurui T et al.[J].Philosophical Magazine Letters,2005,85:221. |
| [2] | Tang M B;Zhao D Q;Pan M X et al.[J].Chinese Physics Letters,2004,21:901. |
| [3] | Inoue A;Zhang W .[J].Materials Transactions,2004,45:584. |
| [4] | Xu D;Lohhwongwatana B;Duan G et al.[J].Acta Materialia,2004,52:2621. |
| [5] | Zhang Q S;Zhang W;Inoue A .[J].Scripta Materialia,2006,55:711. |
| [6] | Inoue A;Zhang W;Zhang T et al.[J].Acta Materialia,2001,49:2645. |
| [7] | Dai CL;Guo H;Li Y;Xu J .A new composition zone of bulk metallic glass formation in the Cu-Zr-Ti ternary system and its correlation with the eutectic reaction[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,2008(31):3659-3665. |
| [8] | Wang Q;Qiang JB;Wang YM;Xia JH;Dong C .Bulk metallic glass formation in Cu-Zr-Ti ternary system[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(32/40):3425-3428. |
| [9] | Zhang W;Zhang Q S;Qin C L et al.[J].Materials Science and Engineering B:Solid-state materials for advanced technology,2008,148:92. |
| [10] | Lin X H;Johnson W L .[J].Journal of Applied Physics,1995,78:6514. |
| [11] | Qin C;Asami K;Zhang T et al.[J].Materials Transactions,2003,44:749. |
| [12] | Yamamoto T;Qin C;Zhang T et al.[J].Materials Transactions,2002,44:147. |
| [13] | Inoue A;Zhang W;Zhang T et al.[J].Materials Transactions,2001,42:1149. |
| [14] | Zhang W;Jia F;Zhang Q S et al.[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2007,459:330. |
| [15] | Lee P Y;Yao C J;Chen J S et al.[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2004,829:375. |
| [16] | Zhang Q S;Zhang H F;Deng Y F et al.[J].Scripta Materialia,2003,49:273. |
| [17] | Park ES.;Lim HK.;Kim WT.;Kim DH. .The effect of Sn addition on the glass-forming ability of Cu-Ti-Zr-Ni-Si metallic glass alloys[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,2002(1):15-22. |
| [18] | Yim H C;Bush R;Johnson W L .[J].Journal of Applied Physics,1998,83:7993. |
| [19] | Yu P;Bai HY;Tang MB;Wang WL .Excellent glass-forming ability in simple Cu50Zr50-based alloys[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(14/15):1328-1332. |
| [20] | Inoue A .[J].Acta Materialia,2000,48:277. |
| [21] | Takeuchi A;Inoue A .[J].Materials Transactions,2005,12:2817. |
| [22] | Fang Q;Wang Q;Zhao Z L et al.[J].Acta Physica Sinica,2007,56:1292. |
| [23] | Avrami M .[J].Journal of Chemical Physics,1941,9:177. |
| [24] | Henderson D W .[J].Journal of Thermal Analysis,1979,15:325. |
| [25] | Muraleedharan R V .[J].Scripta Materialia,1999,40:1367. |
| [26] | Liu L;Chan K C .[J].Intermetallics,2004,12:1143. |
| [27] | Jiri Málek .[J].Thermochimica Acta,2000,355:23. |
| [28] | Ranganathan S;Von Heimendahl M .[J].Journal of Materials Science,1981,16:2401. |
| [29] | Calka A;Radinski A P .[J].Journal of Materials Research,1985,3:59. |
| [30] | Lu ZP;Liu CT .Role of minor alloying additions in formation of bulk metallic glasses: A review[J].Journal of Materials Science,2004(12):3965-3974. |
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%