采用玻璃融覆法(fluxing)提纯技术能显著提高Fe40Ni40P14B6合金的过冷度,并可获得深过冷条件下的凝固组织.研究结果表明,不同过冷度下Fe40Ni40P14B6的凝固组织存在显著差异,增加过冷度能大幅细化凝固组织.在深过冷条件下,能获得纳米晶凝固组织;当过冷度为360 K时,所制备的Fe40Ni40P14B6块体纳米晶合金的平均晶粒尺寸约为40 nm;当过冷度足够大时,获得的凝固组织具有液相Spinodal分解导致的网状组织特征.热力学分析结果表明,Spinodal分解所形成的网状组织的特征尺寸与熔体过冷度有关,过冷度越大,尺寸越小.
参考文献
| [1] | Long Y,Zhang Z Y,Li S W.New Functional Magnetic Material and Applications.Beijing:China Machine Press,1997:130 (龙毅,张正义,李守卫.新功能磁性材料及其应用.北京:机械工业出版社,1997:130) |
| [2] | Kui H W,Greer A L,Turnbull D.Appl Phys Lett,1984;45:615 |
| [3] | Perepezko J H.Mater Sci Eng,1994; A179:52 |
| [4] | Herlach D M,Gao J,Holland-Moritz D,Volkmann T.Mater Sci Eng,2004; A375:9 |
| [5] | Norman A F,Greer A L.Mater Sci Forum,1995; 179-180:707 |
| [6] | Hu H Q.Principles of Metal Solidification.2nd ed,Beijing:China Machine Press,2000:80 (胡汉起.金属凝固原理.第2版,北京:机械工业出版社,2000:80) |
| [7] | Shen T D,Schwartz R B.Acta Mater,2001; 49:837 |
| [8] | Cahn J W.TMS AIME,1968; 242:166 |
| [9] | Guo W H,Chua C F,Leung C C,Kui H W.J Mater Res,2000; 15:1605 |
| [10] | Luborsky F E.Amorphous Metallic and Alloys.London:Butterworth & Co (Publishers) Ltd.,1983:153 |
| [11] | Perepezko J H.Mater Sci Eng,1997; A226-228:374 |
| [12] | Laxmanan V.Acta Metall,1985; 33:1475 |
| [13] | Xu Z,Zhao L C.Principles of Metallic Solid Transformation.Beijing:Science Press,2004:169 (徐洲,赵连城.金属固态相变原理.北京:科学出版社,2004:169) |
| [14] | Lee K L,Kui H W.J Mater Res,1999; 14:3653 |
| [15] | Hong S Y,Guo W H,Kui H W.J Mater Res,1999; 14:3668 |
| [16] | Guo W H,Kui H W.Acta Mater,2000; 48:2117 |
| [17] | Yuen C W,Lee K L,Kui H W.J Mater Res,1997; 12:314 |
| [18] | Yuen C W,Kui H W.J Mater Res,1998; 13:3034 |
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%