摘要
以粒度为 0 8μm(FSSS)的超细WC粉及超细Co粉为原料 ,VC和Cr3C2 为抑制剂 ,用真空烧结加热等静压或气压烧结手段 ,制取了硬度HRA≥ 90 0、强度σ≥ 30 0 0MPa的高强、高硬系列超细硬质合金 。
m-sized WC and Co powders are taken as raw materials,VC and Cr 3C 2 as grain growth inhibitors,high strength and high hardness(“both high”)ultrafina cemented carbide (hardness HRA≥92 5,transverse rupture strength TRS≥3000MPa)has been made by hot isostatic pressing.The function of hot isostatic pressing and the way of promoting transverse rupture strength have also been discussed in the paper.
出处
《硬质合金》
CAS
2000年第4期214-220,共7页
Cemented Carbides
关键词
超细硬质合金
强度
真空烧结
热等静压
研制
ultrafine cemented carbide,strength,vacuum sintering,hot isostatic pressing.
