FRACTURE STRENGTH OF WC-Co ALLOYS

来源期刊：中国有色金属学报(英文版)1997年第3期

论文作者：Cao Shunhua

文章页码：55 - 57

Key words：fracture strength； cobalt phase volume fraction； WC grain size

Abstract: Considering the classic GriffithOrowan equation of energy balance during fracture and the contribution of the tungsten carbide and the effective cobalt phase volume fraction to the fracture strength, a new theory, which concerns the variations of the fracture strength of WCCo alloys with their microstructural parameters such as the cobalt phase volume fraction and tungsten carbide grain size, was proposed. The predications provided by this theory tally qualitatively well with the experimental results observed by the previous researchers.