Preparation of Mo2C nanoparticles dispersion-strengthened copper-based composite by EB-PVD

In this research, a nano-Mo 2 C particle dispersion-strengthened copper alloy was prepared by a novel method, i.e., electron beam physical vapor deposition (EB-PVD) which has advantages of simple technical process and low cost compared with the conventional mechanical alloying method. And the micros...

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Bibliographic Details
Published in:Rare metals 2014-10, Vol.33 (5), p.568-572
Main Authors: Li, Xiao, Song, Guang-Ping, Bu, Fan-Yu, Xu, Bin, Lou, Bai-Yang, Lin, Zhan
Format: Article
Language:English
Subjects:
Biomaterials
Chemistry and Materials Science
Energy
Materials Engineering
Materials Science
Metallic Materials
Nanoscale Science and Technology
Physical Chemistry
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Summary:In this research, a nano-Mo 2 C particle dispersion-strengthened copper alloy was prepared by a novel method, i.e., electron beam physical vapor deposition (EB-PVD) which has advantages of simple technical process and low cost compared with the conventional mechanical alloying method. And the microstructure and properties of the material were investigated. The results show that the copper matrix is composed of columnar crystals with the average width of 7 μm, and the size of Mo 2 C dispersoid is 1–7 nm. The ultimate tensile strength of the material is 486 MPa, and the electrical conductivity is 82 % IACS. As the temperature increases from 293 to 573 K, the material becomes more brittle.
ISSN:1001-0521
1867-7185
DOI:10.1007/s12598-014-0342-z