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通过三维取向分布函数(ODF)分析研究了连续退火均热工艺对二次冷轧(DCR)薄板(0.2 mm)及再结晶织构的影响。结果表明:连续退火均热段时间为50s时,均热温度690℃再结晶α纤维织构组分从{001}<110>至{112}<110>的强度比625℃时弱,但α纤维织构{111}<110>及γ纤维织构({111})的强度比625℃时强,相应地,均热温度690℃的试样比625℃时的试样塑性强;当连续退火均热段温度690℃时,均热时间50 s的再结晶α纤维织构与γ纤维织构的强度均明显比70 s时强,而试样抗拉强度、塑性基本不变。这种织构明显变化而力学性能不变的退火工艺为第二次冷轧加工出不同性能的产品提供了可能。
The effects of continuous annealing and soaking on the secondary cold rolled (DCR) sheet (0.2 mm) and the recrystallization texture were investigated by means of three-dimensional orientation distribution function (ODF) analysis. The results show that when the soaking time is 50s, the strength of recrystallized α-fiber structure at 690 ℃ from {001} <110> to {112} <110> is weaker than that at 625 ℃, but α The strength of fiber texture {111} <110> and γ fiber texture ({111} ) is stronger than that of 625 ℃. Correspondingly, the sample with soak temperature 690 ℃ is stronger than the sample with 625 ℃ ; When the soaking temperature is 690 ℃, the recrystallized α-fiber texture and γ-fiber texture of the soaking time of 50 s are obviously stronger than those of 70 s, while the tensile strength and plasticity of the samples are basically unchanged . This obvious change in texture and mechanical properties of the same annealing process for the second cold-rolled out of different properties of the product offers the possibility.