| Phase transformation of a dual phase Al-Fe alloy prepared by mechanical alloying |
| F. Zhou; R. Luck; K. Lu; M. Ruhle
|
| 2001
|
| 发表期刊 | Zeitschrift Fur Metallkunde
 |
| ISSN | 0044-3093
|
| 卷号 | 92期号:7页码:675-681 |
| 摘要 | A metastable Al90Fe10 (at.%) alloy, composed of a supersaturated solid solution of face-centred cubic (fcc) Al(Fe) and an amorphous phase matrix, was prepared by mechanical alloying of a mixture of Al and Fe elemental blends. The thermally induced microstructural evolution in the dual phase alloy was characterized by X-ray diffraction, transmission electron microscopy, differential scanning calorimetry, and magnetothermal analysis. On continuous heating two stages of solid state phase transformation occurred: (i) a polymorphous crystallization of the amorphous phase to a metastable crystalline Al6Fe that structurally stabilizes over a temperature range of about 200 K, and (ii) a eutectoid decomposition of the crystalline Al6Fe into the equilibrium phases of Al13Fe4 and fcc Al(Fe). Thermodynamic and kinetic analyses of the observed phase transformation processes were given. The formation of the dual phase alloy in the as-milled state and the phase transitions can be illustrated by a hypothetical free energy diagram, implying the dual phase structure facilitates the polymorphous crystallization of Al6Fe. |
| 部门归属 | max planck inst met res, d-70174 stuttgart, germany. cas, inst met res, state key lab rsa, shenyang, peoples r china.;luck, r (reprint author), max planck inst met res, seestr 92, d-70174 stuttgart, germany
|
| 关键词 | Mechanical Alloying
Aluminium Alloys
Thermodynamics
Polymorphous
Crystallization
Induced Nanocrystal Formation
Metallic Glasses
Intermetallic Phases
Amorphous-alloys
Aluminum
Amorphization
Deformation
Powder
|
| URL | 查看原文
|
| WOS记录号 | WOS:000170317800008
|
| 引用统计 |
|
| 文献类型 | 期刊论文
|
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/36952
|
| 专题 | 中国科学院金属研究所
|
推荐引用方式
GB/T 7714 |
F. Zhou,R. Luck,K. Lu,et al. Phase transformation of a dual phase Al-Fe alloy prepared by mechanical alloying[J]. Zeitschrift Fur Metallkunde,2001,92(7):675-681.
|
| APA |
F. Zhou,R. Luck,K. Lu,&M. Ruhle.(2001).Phase transformation of a dual phase Al-Fe alloy prepared by mechanical alloying.Zeitschrift Fur Metallkunde,92(7),675-681.
|
| MLA |
F. Zhou,et al."Phase transformation of a dual phase Al-Fe alloy prepared by mechanical alloying".Zeitschrift Fur Metallkunde 92.7(2001):675-681.
|
修改评论