以前发表过多篇有关钒在铸铁中作用的文章,但有些观点,结论和现代理论相矛盾。为此,英国铸铁协会对此问题作了系统研究。:’对灰铸铁的影响对机械性能的影响:图1为不同合金含量对六炉次抗拉强度和硬度的影响。从图可 There have been many articles published before on the role of vanadium in cast iron, but some opinions and conclusions contradict modern theories. To this end, the British Iron and Steel Institute made a systematic study of this issue. : ’Effect on gray cast iron on mechanical properties: Figure 1 shows the effect of different alloy content on the tensile strength and hardness of six heats. From the map