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

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Journal of Superhard Materials Pub Date : 2024-01-18 DOI:10.3103/S1063457623060047

I. O. Hnatenko, I. V. Andreiev, S. O. Lysovenko, O. S. Roik, O. S. Osipov, T. O. Kosenchuk

引用次数: 0

Abstract

We investigated the effect of barothermal treatment at a pressure of 8 GPa and temperatures of 1450–1700°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.

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烧结硬质合金的巴氏热处理温度对其结构和性能演变的影响

摘要我们研究了在压力为 8 GPa、温度为 1450-1700°C 的条件下进行棒热处理对不同钴浓度的硬质合金结构和性能的影响。应用棒热处理可使硬质合金相的晶粒尺寸增大 30%，整体孔隙率降低。在固相烧结条件下处理的 WC-6Co 合金的硬度和应力强度因子都有所提高。在液相存在的相应温度下对 WC-15Co 合金进行棒热处理，可形成 Co3W3C 金属间相。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Superhard Materials MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

1.80

自引率

66.70%

发文量

审稿时长

2 months

期刊介绍： Journal of Superhard Materials presents up-to-date results of basic and applied research on production, properties, and applications of superhard materials and related tools. It publishes the results of fundamental research on physicochemical processes of forming and growth of single-crystal, polycrystalline, and dispersed materials, diamond and diamond-like films; developments of methods for spontaneous and controlled synthesis of superhard materials and methods for static, explosive and epitaxial synthesis. The focus of the journal is large single crystals of synthetic diamonds; elite grinding powders and micron powders of synthetic diamonds and cubic boron nitride; polycrystalline and composite superhard materials based on diamond and cubic boron nitride; diamond and carbide tools for highly efficient metal-working, boring, stone-working, coal mining and geological exploration; articles of ceramic; polishing pastes for high-precision optics; precision lathes for diamond turning; technologies of precise machining of metals, glass, and ceramics. The journal covers all fundamental and technological aspects of synthesis, characterization, properties, devices and applications of these materials. The journal welcomes manuscripts from all countries in the English language.