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 effects of titanium 0.145-0.35% corresponding to the ratio Ti/(C+N)varied from 2.9 to 10.1 on the recrystallization textures of cold rolled low-carbonsteel sheets have been investigated in comparison with the plastic strain ratio Rand deep-drawing properties. For the ratio Ti/(C+N)>4, the main texture com-ponent of (111) [112] is beneficial to the deep-drawing ability; for the ratio Ti/(C+N)<4, that of (100) [011] is detrimental. It would appear that the deep-drawingproperties were substantially determined by the type and degree of the recrystal-lization textures, but not by their erystalline shape. The influence of fine precipi-tates of TiC phase on the recrystallization texture has been discussed.
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