[S]、T[O]对高纯净低合金钢强韧性的影响研究

EFFECT OF [S] AND T[O] ON STRENGTH AND TOUGHNESS OF HIGH CLEANLINESS LOW ALLOY STEEL PLATES

对 [P]、[N]、T[O]总量少于 80× 10 - 6 条件下 [S]对低合金钢钢板强、韧性能的影响 ,以及 [S]、[P]、[N]杂质总量少于 70× 10 - 6 条件下 T[O]对低合金钢钢板强、韧性能的影响进行了研究。发现 [S]低于 4 0×10 - 6 时 ,钢板强度随硫含量增加而降低 ,当 [S]在 (4 0～ 12 0 )× 10 - 6 之间时 ,硫含量的增加对钢板的强度影响不大。

The effect of [S] on strength and toughness of low alloy steel plates in which sum of [P],[N],T[O] is less than 80×10 -6 and the effect of T[O] on strength and toughness of the steel plates in which sum of [S],[P],[N] is less than 70×10 -6 are investigated It is found that the strength of the steel plates decreases with increasing [S] content when [S] is less than 40×10 -6 When [S] varies within the range of (40~120)×10 -6 ,[S] has no significant effect on strength of the steel