采用X射线衍射(XRD)和高分辨透射电镜(HRTEM)对Al-Fe-Ce非晶合金的局域结构进行了研究,分析了二十面体短程序对非晶合金的形成及热稳定性的影响.Al-Fe-Ce非晶合金中的二十面体短程序均匀弥散分布在非晶基体中.Al颗粒被二十面体化学短程序紧紧包围,二十面体化学短程序阻碍了Al颗粒的长大,面心立方铝(fcc-Al)的形核需要二十面体结构的分解及溶于其中的元素的扩散.二十面体结构单元的存在和均匀分布有利于增强非晶合金的玻璃形成能力和非晶相的热稳定性.
参考文献
| [1] | He Y;Poon S J;Shiflet G J .Synthesis and propeorties of metallie glasses that contain aluminum[J].Science,1988,241:1640. |
| [2] | Hsieh H Y;Toby B H;Egamni T;He Y,Poon S J,Shiflet G J .Atomic structure of amorphous AI90FexCe10-x[J].Journal of Materials Research,1990,5:2807. |
| [3] | Xing L Q;Mukhopadhyay A;Buhro W;Kehon K F .Improved M-Y-Fe glass formation by mieroalloying with Ti[J].Philosophical Magazine Letters,2004,84:293. |
| [4] | Mukhopadhyay A;Spence KE;Xing LQ;Buhro WE;Kelton KF .An Al-rich metallic glass with a large supercooled liquid region[J].Philosophical magazine: structure and properties of condensed matter,2007(2):281-290. |
| [5] | Inane A .Fabrication and novel properties of nanostructured Al base alloys[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,1994,179-180:57. |
| [6] | Zhang L;Wu Y;Bian X;Li H,Wang W,Li J,Lun N .Origin of the prepoak in the structure factors of liquid and amorphous Al-Fe-Ce alloys[J].Journal of Physics:Condensed Matter,1999,11:7959. |
| [7] | Mansoue A N;Wong C P;Brizzolara R A .Atomic structure of amorphous Al100-2xCoxCex(x=8,9 and 10) and Al80Fe10Ce10 alloys:art XAFS study[J].Phys Bey B,1994,50:12401. |
| [8] | Elliott S R .Medium-range structural order in covalent amorphous solids[J].Nature,1991,354:445. |
| [9] | Chen G;Hui X;Fan S;Kou H Yao K .Concept of chemical short range order domain and the glass forming ability in multicomponent liquid[J].Intermetallics,2002,10:1221. |
| [10] | Tanaka H .Role,of local ieosahedral chemical ordering in and quasicrystal formation in metallic glass formers[J].Journal of Physics:Condensed Matter,2003,15:491. |
| [11] | 康凯,王晓军,陈学定,刘国瑞.Mg65Cu15Ag10Y10非晶合金的晶化动力学[J].中国稀土学报,2006(06):685-690. |
| [12] | 肖于德,黎文献,马正青.快速凝固AlNiCuNd纳米/非晶复合材料的制备及显微组织研究[J].中国稀土学报,2004(04):467-472. |
| [13] | 张川江,吴佑实,董守义,石元昌,周国荣.铝基非晶合金微观结构的特点与演变[J].物理学报,2002(11):2575-2579. |
| [14] | Elliot S R .Origin of the first sharp diffraction peak in the stuctare factor of covalent glasses[J].Physical Review Letters,1991,67:711. |
| [15] | Audebert F;Sirkin H;Escorial AG .Approach to the atomic structure of amorphous Al-Fe-Nb[J].Philosophical magazine.B.Physics of condensed matter, electronic, optical, and magnetic properties,1997(4):483-487. |
| [16] | Audebert F;Arcendo B;Redriguez D;Sirkin H .Short-range order study in Al-Fe-X melt spun alloys[J].Materials Science Forum,2001,360-362:155. |
| [17] | Zhang Chuanjiang;Wu Youshi;Cai Xueling;Zhou Guoroug,Shi Yuanchang,Yang Hua,Wu Si .Precipitation of an icosahedral phase in amorphous Al90 Fe5 Ce5 alloy[J].Journal of Physics:Condensed Matter,2001,13:647. |
| [18] | Xing L Q;Hufnegel T C;Eckert J;Loawe W,Sohulz L .Rela tion between short-range order and crystallization behavior in Zrbased amorphous alloys[J].Applied Physics Letters,2000,77:1970. |
| [19] | Egami T .The atomic structure of aluminum based metatlic glasses and universal criterion for glass formation[J].J Nou-Cryst Solids,1996,205-207:575. |
| [20] | Zhang L.;Huang XF.;Wu YS.;Bian XF.;Chen KJ. .The influence of compound-forming tendency on Al-based-glass formability[J].Journal of Physics. Condensed Matter,2001(26):5947-5955. |
| [21] | Ahn K.;Louca D.;Poon SJ.;Shiflet GJ. .Local structure of Al- and Fe-based metallic glasses[J].Journal of Physics. Condensed Matter,2003(31):S2357-S2364. |
| [22] | Tsai A P;Kamiyama T;Kawamura Y;Inoue A,Masumoto T .Formation and precipitation mechanism of nanoscale M particlesin Al-Ni base amorphous alloys[J].Acta Materials,1997,45:1477. |
| [23] | Cban L C;Speepen F .Calorimetric evidence for the microquasicrystalline structure of amorphous Al/transition metal alloys[J].Nature,1988,336:366. |
| [24] | 董盼,张甲,常新春,侯万良,全明秀,王建强.Al-Co-Y体系中富Al区非晶相的形成与结构演化[J].金属学报,2008(02):227-232. |
| [25] | Zhang Chuanjiang;Wu Youshi;Dong Shouyi;Shi Yuanehang,Zhou Guomng,Hu Chunxia .Microstmctural evolution in amor.phous Al-based alloys[J].Journal of Physics:Condensed Matter,2002,14:111. |
| [26] | Das SK.;Wu RI.;Wilde G.;Perepezko JH. .Undercooling and glass formation in Al-based alloys[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2001(0):159-165. |
| [27] | Zlang Y;Chen J;Chen G L;Liu X J .Glass formation mechanism of minor yttrium addition in CuZrAI alloys[J].Applied Physics Letters,2006,89:131904. |
| [28] | Zhou Y J;Zhang Y;Wang F J;Chen G L .Phase transformationo induced by lattice distortion in multiprincipal component CoCrFeNiCuxAl1-xsolid-solution alloys[J].Applied Physics Letters,2008,92:241917. |
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