摘要
用三点弯曲法测定了硬质合金的抗弯强度σm,用两参数Weibull统计法分析了σm 的分散性。试验和分析结果表明 :硬质合金的抗弯强度与材料中WC的粒度和粒度均匀性有关 ,σm 的平均值随材料中WC颗粒平均尺寸d的增大而减小 ,随WC粒度均匀性变好而增大。
The bending strength ( σ m) of the cemented carbide is determined by the three points bending test and its dispersivity is analyzed with the two parameters Weibull statistics. The results of experiments and analysis show that the mean bending strength ( σ m) of the cemented carbide is related to the particle size and uniformity of WC particles. The mean bending strength ( σ m) of the cemented carbide decreases with the increase of mean size ( d ) of WC particles and increases with betterment of the uniformity of WC particles .
出处
《工具技术》
北大核心
2002年第10期16-19,共4页
Tool Engineering
