Influence of Temperature in Barothermal Treatment of Sintered Cemented Carbides on the Evolution of Their Structure and Properties

被引：0
|
作者：
Hnatenko, I. O. [1 ]
Andreiev, I. V. [1 ]
Lysovenko, S. O. [1 ]
Roik, O. S. [2 ]
Osipov, O. S. [1 ]
Kosenchuk, T. O. [1 ]
机构：
[1] Bakul Inst Superhard Mat, Natl Acad Sci Ukraine, UA-04074 Kiev, Ukraine
[2] Taras Shevchenko Natl Univ, UA-01033 Kiev, Ukraine
来源：
JOURNAL OF SUPERHARD MATERIALS | 2023年 / 45卷 / 06期
关键词：
cemented carbides; barothermal treatment; high-pressure apparatus; structure; hardness; X-ray phase analysis; HIGH-PRESSURE; BEHAVIOR; SIZE;
D O I：
10.3103/S1063457623060047
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We investigated the effect of barothermal treatment at a pressure of 8 GPa and temperatures of 1450-1700 degrees C on the structure and properties of cemented carbides with varying cobalt concentrations. The application of barothermal treatment led to a 30% increase in the grain size of the carbide phase and a decrease in overall porosity. For WC-6Co alloys treated under conditions of solid-phase sintering, an increase in hardness and the stress intensity factor are observed. The barothermal treatment of WC-15Co alloys at temperatures corresponding to the existence of a liquid phase leads to the formation of Co3W3C intermetallic phases.
引用
收藏
页码：444 / 450
页数：7
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