基于WC的10wt%Co硬质合金的放电等离子烧结：烧结动力学与固相过程研究

Spark Plasma Sintering of WC-Based 10wt%Co Hard Alloy: A Study of Sintering Kinetics and Solid-Phase Processes.

作者信息

Buravleva Anastasia A, Fedorets Alexander N, Vornovskikh Anastasia A, Ognev Alexey V, Nepomnyushchaya Valeria A, Sakhnevich Vladimir N, Lembikov Aleksey O, Kornakova Zlata E, Kapustina Olesya V, Tarabanova Anna E, Reva Victor P, Buravlev Igor Yu

机构信息

Far Eastern Federal University, 10 Ajax Bay, Russky Island, 690922 Vladivostok, Russia.

Laboratory of Spin-Orbitronics, Institute of High Technologies and Advanced Materials, Far Eastern Federal University, 690922 Vladivostok, Russia.

出版信息

Materials (Basel). 2022 Jan 30;15(3):1091. doi: 10.3390/ma15031091.

DOI:10.3390/ma15031091

PMID:35161038

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8838157/

Abstract

The paper describes the method for producing WC-10wt%Co hard alloy with 99.6% of the theoretical density and a Vickers hardness of ~1400 HV 0.5. Experimental data on densification dynamics, phase composition, morphology, mechanical properties, and grain size distribution of WC-10%wtCo using spark plasma sintering (SPS) within the range of 1000-1200 °C are presented. The high quality of the product is provided by the advanced method of high-speed powder mixture SPS-consolidation at achieving a high degree of densification with minimal calculated grain growth at 1200 °C.

摘要

本文描述了一种生产理论密度为99.6%且维氏硬度约为1400 HV 0.5的WC-10wt%Co硬质合金的方法。文中给出了在1000-1200°C范围内使用放电等离子烧结（SPS）对WC-10%wtCo的致密化动力学、相组成、形态、力学性能和晶粒尺寸分布的实验数据。该产品的高质量得益于高速粉末混合SPS固结的先进方法，即在1200°C时以最小的计算晶粒生长实现高度致密化。