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Journal of Materials Engineering and Performance

, Volume 22, Issue 12, pp 3723–3727 | Cite as

Microstructure and Properties of a Deformation-Processed Cu-Cr-Ag In Situ Composite by Directional Solidification

  • Keming LiuEmail author
  • Deping Lu
  • Haitao Zhou
  • Yanling Yang
  • Andrej Atrens
  • Jin Zou
Article

Abstract

Cu-7Cr-0.07Ag alloys were prepared by casting and directional solidification, from which deformation-processed in situ composites were prepared by thermo-mechanical processing. The microstructure, mechanical properties, and electrical properties were investigated using optical microscopy, scanning electronic microscopy, tensile testing, and a micro-ohmmeter. The second-phase Cr grains of the directional solidification Cu-7Cr-0.07Ag in situ composite were parallel to the drawing direction and were finer, which led to a higher tensile strength and a better combination of properties.

Keywords

Cu-Cr-Ag directional solidification in situ composite microstructure property 

Notes

Acknowledgments

This project was financially supported by the National Natural Science Foundation of China (No. 50961006), the Key Program of Natural Science Foundation of Jiangxi Province (No. 20133BAB20008), the Open Foundation of Jiangxi Key Laboratory for Advanced Copper and Tungsten Materials (No. 2011-TW-02, 2010-WT-01), and the Natural Science Foundation of Jiangxi Academy of Sciences (No. 2012-YQC-09).

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Copyright information

© ASM International 2013

Authors and Affiliations

  • Keming Liu
    • 1
    Email author
  • Deping Lu
    • 1
  • Haitao Zhou
    • 2
  • Yanling Yang
    • 1
  • Andrej Atrens
    • 3
  • Jin Zou
    • 1
  1. 1.Jiangxi Key Laboratory for Advanced Copper and Tungsten MaterialsJiangxi Academy of SciencesNanchangPeople’s Republic of China
  2. 2.School of Materials Science and EngineeringCentral South UniversityChangshaPeople’s Republic of China
  3. 3.The University of QueenslandBrisbaneAustralia

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