【摘要】 硫化物形态（L/B）、大小（L）、数量（N）对5CrNiMnMoVSCa钢的纵向冲击韧性几乎无影响,对横向冲击韧性有很大影响。这种影响的定量关系为:α_k横=8.6e^{-2.2×10-3（K-1）I},式中K为横向同纵向硫化物应力集中系数之比K=（1+2·L/B）/（1+2·B/L）I=L（1/N）²为单位长度上夹杂物的总长度。更多还原

【Abstract】 Shape(L/B). length(L). and quantity(N) of solfide have little influence on the longitudinal impact toughness but have great influence on the transverse impact toughness of 5CrNiMnMoVSCa steel. The relationship between transverse aK, K and I is aK(transverse)=8.6e-2.2×10-3<K-1)1, where K is the ratio of stress concentration factor of sulfide in transverse direction to that in longitudinal direction, / is LN--total length of sulfide in unit length更多还原