Nanostructures and Mechanical Properties of Bulk Al-Fe Alloys Prepared by Electron-Beam Deposition
Nanostructures and Mechanical Properties of Bulk Al-Fe Alloys Prepared by Electron-Beam Deposition
复制标题
电子束沉积制备大块铝铁合金的纳米结构和力学性能
DOI：
10.2320/matertrans.42.1561
复制
发表时间：
2001
影响因子：
1.2
通讯作者：
A. Inoue
中科院分区：
文献类型：
--
作者：
H. Sasaki;K. Kita;J. Nagahora;A. Inoue
用电子束蒸发法制备了添加Fe的纳米结构Al基二元合金。研究了成分对显微组织和力学性能的影响。Fe含量在4at%以下的镀层由Al的过饱和固溶体组成。当Fe含量较高时，镀层由非晶相和晶相组成，晶粒度小于40 nm。在过饱和固溶体形成的含量范围内，随着过饱和固溶体含量的增加，晶粒度变细。维氏硬度随Fe含量的增加而增加，当Fe含量为1at%和15at%时，维氏硬度分别达到200Hv和600Hv。当Fe含量为2.5at%，晶粒度为40 nm时，镀层的抗拉强度达到1000 Mpa。强度和硬度符合Hall-Petch关系，最大晶粒尺寸为40 nm。
Nanostructure Al-based binary alloys with additions of Fe have been prepared by electron-beam evaporation. The composition dependence of microstructures and mechanical properties has been studied. The deposits up to an Fe content of 4 at% consist of a supersaturated solid solution of Al. At higher Fe contents, the deposits consist of an amorphous and crystalline phase with a grain size below 40 nm. At the content range in which the supersaturated solid solution formed, as the content increased, the crystalline size became finer. The Vickers hardness increases with increasing the content of Fe and reaches values of 200 Hv and 600 Hv for contents of 1 at% and 15 at%, respectively. The tensile strength of the deposit exhibited a high strength of 1000 MPa at the Fe content of 2.5 at% with grain size 40 nm. The strength and hardness followed the Hall-Petch relation up to the grain size of 40 nm.