Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying
文献类型：期刊论文
| 作者 | H. W. Sheng ; Y. H. Zhao ; Z. Q. Hu ; K. Lu |
| 刊名 | Physical Review B
 |
| 出版日期 | 1997 |
| 卷号 | 56期号:5页码:2302-2305 |
| 关键词 | to-glass transition crystal transformation |
| ISSN号 | 0163-1829 |
| 中文摘要 | Metastable Fe100-xAlx alloys have been formed by ball milling of elemental Fe and Al powders: supersaturated body-centered-cubic solid solutions for x less than or equal to 70, and an amorphous phase for x > 70. Quantitative x-ray-diffraction measurements show that the total root-mean-square displacement (rms) and the static rms in the Fe100-xAlx solid solutions increase significantly with increasing Al content, The total rms at the instability point, however, reaches only 6.8% of the nearest-neighbor distance and is far below the critical value predicted by the Lindemann melting criterion, suggesting that the Lindemann melting criterion is not applicable for the solid-state amorphization. Instead. the Debye temperature of the supersaturated Fe100-xAlx alloys was observed to drop by similar to 22% at the point of amorphization, implying a corresponding softening in the average shear modulus of similar to 40%, which agrees with the microhardness measurements. These results strongly support the empirical elastic instability criterion For the solid-state amorphization process. |
| 原文出处 | |
| 公开日期 | 2012-04-14 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/38076]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | H. W. Sheng,Y. H. Zhao,Z. Q. Hu,et al. Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying[J]. Physical Review B,1997,56(5):2302-2305. |
| APA | H. W. Sheng,Y. H. Zhao,Z. Q. Hu,&K. Lu.(1997).Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying.Physical Review B,56(5),2302-2305. |
| MLA | H. W. Sheng,et al."Lattice instability in the solid-state amorphization of Fe(Al) solid solutions by mechanical alloying".Physical Review B 56.5(1997):2302-2305. |
入库方式： OAI收割
来源：金属研究所
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