Effects of Cu on microstructure and mechanical properties of Fe 3Al-10%Ni bulk nanocrystalline prepared by aluminothermic reaction

被引：0
|
作者：
La P.-Q. [1 ]
Liu X.-M. [1 ]
Liu H. [1 ]
Lu X.-F. [1 ]
Wei Y.-P. [1 ]
Bai Y.-P. [1 ]
Chen J.-M. [1 ]
机构：
[1] State Key Laboratory of Gansu Advanced Non-ferrous Metal Materials, Lanzhou University of Technology
来源：
Hangkong Cailiao Xuebao/Journal of Aeronautical Materials | 2011年 / 31卷 / 06期
关键词：
Aluminothermic reaction; Bulk nanocrystalline; Cu element; Plasticity;
D O I：
10.3969/j.issn.1005-5053.2011.6.002
中图分类号：
学科分类号：
摘要：
Effects of Cu additions on microstructure and mechanical properties of Fe 3Al-10%Ni bulk nanocrystalline prepared by aluminothermic reaction were studied. The microstructure was studied by OM, EPMA, XRD and TEM, and the hardness and compressive strength were measured. The results reveal that the low Cu content (2%) maintained the bcc crystal structure and resulted in a sharp decrease of the average grain size. However, high Cu contents (4% and 6%) caused the structure ordering to B2. The hardness increased after adding Cu. A high Cu content was not benefit to the plasticity. The yield strength increased slightly at 2% and 6% Cu, but decreased a lot at 4% Cu.
引用
收藏
页码：7 / 11
页数：4
相关论文
共 21 条
  • [1] Bonetti E., Valdre G., Enzo S., Et al., Nanostructured Fe <sub>3</sub>Al intermetallic obtained by mechanical alloying and thermal ageing, Nanostructured Materials, 2, 4, pp. 369-375, (1993)
  • [2] Li Y., Wang J., Wu H., XRD and TEM analysis of Fe <sub>3</sub>Al alloy layer on the surface of the calorized steel, Materials Research Bulletin, 36, 13, pp. 2389-2394, (2001)
  • [3] 14, 2, pp. 25-27, (2002)
  • [4] 22, 7, pp. 68-71, (2008)
  • [5] Josef P., Guido S., The relation between the shape of the stress anomaly and the structure of Fe <sub>3</sub>Al alloys, Intermetallics, 10, 7, pp. 717-722, (2002)
  • [6] Westbrook J.H., Fleischer R.L., Structural applications of intermetallic compounds, Intermetallic Compounds, 3, 5, pp. 182-196, (2000)
  • [7] Mckameey C.G., Devan J.H., Tortorelli P.E., A review of recent development in Fe <sub>3</sub>Al-based alloys, Journal of Materials Research, 6, 8, pp. 1779-1785, (1991)
  • [8] Fair G.H., Wood J.V., Mechanical alloying of Fe-Al intermetallics in the DO <sub>3</sub> composition range, Journal of Materials Science, 29, pp. 1935-1939, (1994)
  • [9] Kumar K.S., Swygenhoven H.V., Suresh S., Mechanical behavior of nanocrystalline metals and alloys, Acta Mater, 51, 19, pp. 5743-5774, (2003)
  • [10] 38, 6, pp. 1013-1027, (2007)
123