摘要
采用正碳烧结工艺研制梯度硬质合金，合理选择配方中的缺碳量以及正碳烧结工艺参数时，可生产出表面硬度高、耐磨性好，内部强度高、韧性好的的梯度硬质合金。实验中，钴含量相同的梯度硬质合金比钴相均匀硬质合金的抗弯强度和耐磨性分别提高了５．５％和２５．６％。
Abstract The gradient cemented carbide was studied by correcting-carbon-sintering process.Its
keys are the degree of carbon of the formula and the parameters of the correcting-carbon-sintering.
The surface of gradient cemented carbide is high hardness and good wear resistance,the interior
is high strength and good impact toughness.Its σ bb and wear resistance increases
5.5%,25.6% than homogeneous cemented carbide respectively.
出处
《粉末冶金技术》
EI
CAS
CSCD
北大核心
1998年第4期260-264,共5页
Powder Metallurgy Technology
基金
国家自然科学基金
