J. Mater. Sci. Technol. ›› 1999, Vol. 15 ›› Issue (03): 229-232.

• 论文 • 上一篇    下一篇

Densification of the Tungsten Heavy Alloys at 1473 K and Fabrication of W-Mo System FGM with Density Gradient

Huaping XIONG, Lianmeng ZHANG, Junguo LI, Runzhang YUAN   

  • 收稿日期:1998-08-07 修回日期:1998-10-08 出版日期:1999-05-28 发布日期:2009-10-10

Densification of the Tungsten Heavy Alloys at 1473 K and Fabrication of W-Mo System FGM with Density Gradient

Huaping XIONG, Lianmeng ZHANG, Junguo LI, Runzhang YUAN   

  1. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, China
  • Received:1998-08-07 Revised:1998-10-08 Online:1999-05-28 Published:2009-10-10
  • Contact: Huaping XIONG

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Abstract: The tungsten heavy alloys with Ni-Al and Fe-Al additives were sintered by hot-press method at 1473 K for 1 h. It was found that the relative density of the W-Fe alloy could be increased evidently by addition of Al. However, the relative density of W-Ni-Al alloy with low content of Al was conversely decreased considerably compared with that of W-Ni alloy. The causes have been studied. The sintering experiments of Mo alloy and W-Mo alloys with 3 wt pct Fe-1.5 wt pct Al additives were also carried out under the same sintering condition of low temperature. Finally, W-Mo system FGM with density gradient was successfully fabricated. Its density changed gradually from 17.0´103 kg/m3 to 9.5´103 kg/m3 within the middle 1.1 mm thickness range.

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