合金化当量对ZG40CrMnSM.PDF

δ 1 1 2 2 δ 1 1 2 α 1 第 34 卷　增刊　　　　　　　　　　　　 钢　　铁 　　　　　　　　　　　　　　V o l. 34, Supp l. 1999 年 10 月 IRON AND ST EEL O ctober, 1999 合金化当量对 ZG40CrMnSiMo 性能和组织的影响 1 1 1 1 杨树和 1 1 1 1 1 1 1 (锦州矿山机器厂) 摘　要　通过大量的生产检测数据, 根据数理统计原理, 确定了新型低合金耐磨铸钢 ZG40C rM nSiMo 冲击韧 性 (aK) 与合金化当量 (M ) 的关系: aK = 67 11- 2 2M ; 论述了合金化当量对组织的影响; 阐明了合金化当量影 响冲击韧性的机理。为使该钢达到硬度与韧性的最佳配合提供了可靠的依据。 关键词　合金化当量　冲击韧性　组织 α INFLUENCE OF THE ALLOY ING EQU IVAL ENT ON QUAL ITIES AND M ICROSTRUCTURE OF ZG40CrMnSiMo YAN G Shuhe (J inzhou M in ing M ach inery Facto ry) ABSTRACT　T h rough statistical analysis of a great amoun t of p roductive data, the relation betw een the no tch toughness (aK ) and alloying equ ivalen t (M ) fo r a new low alloy w ear resis tan t cast steel ZG40C rM nSiMo has been estab lished: aK = 67 11- 2 2M . T he inflyence of al loying equ ivalen t on the m icro structu re of th is steel has been discu ssed, and the influence of alloying equ ivalen t on the no tch toughness of tested steel has been exp lained. T he paper has offered a reliab le basis fo r op timum com b