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研究了含Ti0.145—0.35%,Ti/(C+N)比为2.9—10.1的低碳深冲薄板,测定了不同Ti/(C+N)比时的织构,并与塑性应变比R值和实冲汽车零件的结果作了对照。当Ti/(C=N)>4时,主要织构为有利于深冲的(111)[112]织构;当Ti/(C+N)<4时,主要织构为不利于深冲的(100)[011]织构。深冲性好坏主要取决于薄板所具有的再结晶织构的类型和强弱,而与晶粒形状无关。用透射电镜观察了弥散的TiC,讨论了弥散相TiC对再结晶织构的某些影响。
The low carbon deep drawing sheet containing Ti0.145-0.35% and Ti / (C + N) ratio of 2.9-10.1 was investigated. The texture of Ti / (C + N) R value and the actual impact of auto parts made a contrast. When Ti / (C = N)> 4, the main texture is deep (111) [112] texture; when Ti / (C + N) <4, the main texture is not conducive to deep drawing (100) [011] texture. Deep drawability is good or bad depends mainly on the type and strength of the recrystallized texture that the sheet has, regardless of the grain shape. Transmission electron microscopy was used to observe the dispersed TiC. Some effects of the dispersed phase TiC on the recrystallization texture were discussed.