有色金属科学与工程2025，Vol.16Issue(4)：527-535,9.DOI:10.13264/j.cnki.ysjskx.2025.04.004
火花等离子烧结制备超细晶WC-10Co-VC合金
Preparation of ultra-fine grain WC-10Co-VC alloy by spark plasma sintering
邓孝纯 1周国治 1张国华1
作者信息
- 1. 北京科技大学绿色低碳钢铁冶金全国重点实验室,北京 100083
- 折叠
摘要
Abstract
This work successfully prepared ultra-high hardness WC-10Co-VC cemented carbides by spark plasma sintering(SPS)with self-synthesized ultra-fine VC powder used as a grain growth inhibitor.The effects of VC content on the densification degree,grain size and mechanical properties were investigated.The results showed that adding VC decreased the relative density and inhibited grain growth.In addition,with the increase of VC content,both hardness and toughness increased first and then decreased.When the content of VC was 3%,the hardness reached the maximum value of 2 235 HV30 due to solid solution and fine grain strengthening.The small-sized grains not only increased the crack deflection frequency but also prolonged the crack propagation path,which increased the energy consumption of crack propagation,thereby improving the fracture toughness.关键词
WC-Co硬质合金/细晶强化/固溶强化/增韧机理/火花等离子烧结Key words
WC-Co cemented carbide/fine grain strengthening/solid solution strengthening/toughening mechanism/spark plasma sintering分类
矿业与冶金引用本文复制引用
邓孝纯,周国治,张国华..火花等离子烧结制备超细晶WC-10Co-VC合金[J].有色金属科学与工程,2025,16(4):527-535,9.
