INVESTIGATION OF SINTERING OF WC-Co CEMENTED CARBIDE SYSTEMS IN A MAGNETIC FIELD.

被引:0
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作者
Zhang, Daming [1 ]
Zhou, Luosan [1 ]
机构
[1] Central South Univ of Technology, China, Central South Univ of Technology, China
关键词
MAGNETIC FIELD EFFECTS - TUNGSTEN CARBIDE;
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摘要
The sintering of cemented carbide in a homogeneous and strong magnetic field is a new powder metallurgy technique. Experimental results demonstrate that the method efficiently improves the quality and structure of cemented carbides. A WC-(10-6)%Co alloy sintered in a magnetic field has a bending strength ( sigma //b//b) 20% higher, ratio of oriented WC crystals three items higher, and the beta -Co (f. c. c. ) content ten times higher than in alloys sintered without the use of the magnetic field. Its porosity is less than 0. 02% (vol. ). Substantial changes are observed both in its macro- and microstructure.
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页码:163 / 170
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