期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2015.04.026
关键词
Tungsten heavy alloy composite; Alumina addition; Mechanical properties
类别
资金
- China Postdoctoral Science Foundation [2014M562171]
- Advanced Research Fund of DOD [9140A18070114JW16001]
- Fundamental Research Funds for the Central Universities [2012ZG0006]
- Open Foundation of National Engineering Research Center of Forming for Metallic Materials [2013006]
In this study, tungsten heavy alloy (WHA) composites were fabricated based on tungsten (W), nickel (Ni), and iron (Fe) system. WHA composites with the composition 93W-4.9Ni-2.1Fe/95W-2.8Ni-1.2Fe-1Al(2)O(3) were prepared by liquid-phase sintering and post-heat treatment to meet the requirement for complex mechanical performance. The relationship between the microstructural characteristics (relative density, W-grain size, and W-W contiguity) and mechanical properties was investigated. Variation in the content of Wand addition of Al2O3 resulted in a significant difference in the microstructure of the two parts of W-NiFe heavy alloy composite. The microstructure of the alloy significantly influenced the tensile properties of the two parts of the W-Ni-Fe heavy alloy composite; however, it did not affect their compressive deformation behaviors. (C) 2015 Elsevier B.V. All rights reserved.
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