Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Mechanical Properties of W-X (X=Cu, Ag or BAg-8) Composites

  • Hanado, H. (Graduate student, Okayama University of Science) ;
  • Hiraoka, Y. (Okayama University of Science) ;
  • Inoue, T. (Graduate student, Okayama University of Science) ;
  • Akiyoshi, N. (R&D Division, Toho Kinzoku Co., Ltd.)
  • Published : 2006.09.24
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Abstract

Bend tests were performed at temperatures between 77 and 473K for W-19vol%Cu, W-22vol%Ag and W-19vol%(BAg-8) composites. Yield and maximum strengths and ductility of the composite were discussed in terms of microstructure and fractography. Results are summarized as follows. (1) Almost no difference was recognized in yield strength between the composites. In contrast, a large difference was recognized in maximum strength and ductility between the composites. (2) Inferior mechanical properties of W-Ag composite to W-Cu composite are attributed to heterogeneous distribution of Ag-phases, whilst inferior mechanical properties of W-(BAg-8) composite to W-Cu composite are attributed to large pores at grain boundaries.

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