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采用EBSD分析方法,对CSP试验钢冷轧板退火过程中组织转变和再结晶织构的演变进行分析。结果表明,试验用钢的再结晶过程属定向形核,冷轧基体织构主要是成条状的{111}<110>、{111}<112>和{001}<110>取向。新的再结晶晶粒主要是{111}<112>和{111}<110>取向,且两种取向相互生成。在再结晶温度区间有利于形成{111}<110>和{111}<112>取向,在晶粒长大阶段会生成大量的对深冲性能无明显影响的{112}<110>取向转变。因此,控制再结晶温度区间内形成的{111}取向稳定存在而不发生转变,将有利于提高材料的深冲性能。
The EBSD analysis was used to analyze the microstructure evolution and recrystallization texture evolution of cold-rolled CSP sheet during annealing. The results show that the recrystallization process of the test steel is oriented nucleation. The texture of the cold-rolled substrate is mainly oriented in {111} <110>, {111} <112> and {001} <110> directions. The new recrystallized grains are mainly {111} <112> and {111} <110> orientations, and the two orientations are mutually generated. The {111} <110> and {111} <112> orientations favor the formation of {112} <110> orientations with no significant effect on deep-drawing properties during grain growth. Therefore, controlling the {111} orientation formed within the control recrystallization temperature range without change will help to improve the deep drawability of the material.