NON-{111} TEXTURES IN COLD ROLLED MICRO-CARBON STEEL SHEETS AND THEIR FORMATION REASONS AND COUNTERMEASURES
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摘要: 结合实际生产和实验室实验,介绍了试制的冷轧微碳深冲钢板中出现的远离常规的非{111}织构的情况。分析了这种非{111}织构的特征及其对钢板塑性应变比的影响,并研究了非{111}织构的工序演变过程及冷轧织构的形成特点,在此基础上进一步分析了非{111}织构的热轧原因,并研究了冷轧压下率和罩式退火升温速度对非{111}织构的影响。最后,依据非{111}织构的形成特点和{111}织构的产生条件提出了控制冷轧微碳深冲钢板织构的对策。Abstract: Non {111}textures different from the normal ones in the trial of cold-rolled micro-carbon deep drawing steel sheets was introduced. The characteristics of the non-{111} textures and their influence on the plastic strain ratio of steel sheets were studied in the practical production and laboratory experiments. The evolution along the main processing steps and the formation features of cold-rolled textures were investigated based on above-mentioned conditions.The reasons for hot rolling of the non-{111}textures was analyzed and the effect of cold rolling ratio and heating rate during batch annealing on the non-{111} textures was investigated.Finally,the countermeasures for the control of textures in cold-rolled micro-carbon deep drawing steel sheets with respect to the formation characteristics of non-{111} textures and the conditions for {111} textures to be dominant are proposed.
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Key words:
- micro-carbon deep drawing steel sheet /
- texture /
- hot rolling /
- cold rolling,batch annealing /
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