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

页码：444 / 450

页数：7

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