单机架可逆冷轧过程中不同厚度规格低碳铝镇静钢的组织性能

发布时间：2018-03-02 17:26

本文选题：低碳铝镇静钢　切入点：可逆轧制　出处：《材料热处理学报》2015年S2期 　论文类型：期刊论文

【摘要】：采用铜丝定点标记法,研究了H-C单机架可逆冷轧低碳铝镇静钢过程中的变形规律,通过单向拉伸实验检测不同厚度规格钢板力学性能,利用光学显微镜观察实验钢板冷轧态及退火态的显微组织,并用电子背散射衍射仪(EBSD)测量了两种厚度实验钢板取向织构情况。结果表明,可逆冷轧过程中沿断面高度方向上各处金属质点流动速度相同,没有明显的剪切变形。试样压下率从34%升高到80%时,r值范围为1.13~1.36,n值范围为0.23~0.24。压下率从64%升高到80%时,退火试样再结晶组织中有利的111∥ND取向晶粒所占比例增加,对深冲性能有利。
[Abstract]:The wire point labeling method, studied the deformation law of H-C single stand reversible cold rolled low carbon aluminum killed steel in the process, through different thickness plates mechanical tensile test detection, using the optical microstructure observation experiment of cold-rolled steel sheet or annealed microscope, and electron backscatter diffraction (EBSD) and two kinds of thickness the experiment measured the plate texture orientation. The results showed that the reversible cold rolling process along the section height direction around the metal particle flow rate is the same, no obvious shear deformation. The sample reduction rate increased from 34% to 80%, R value is 1.13~1.36, n value is in the range of 0.23~0.24. reduction rate increased from 64% to 80% ND, annealing recrystallization grains 111 "favorable increase in the proportion of the organization, in favor of the deep drawing performance.

【作者单位】：江苏大学材料科学与工程学院;山东大学材料科学与工程学院;中国二十冶集团有限公司;
【基金】：国家自然科学基金(51275216) 江苏大学高级人才科研启动基金(14JDG129)
【分类号】：TG142.1;TG335.12

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