【摘 要】
:
研究了初始凝固组织对Cr17铁素体不锈钢组织、织构、成形性的影响。分别对柱状晶、等轴晶铸坯进行热轧、退火、冷轧、退火实验。结果表明,等轴晶铸坯热轧试样在退火过程中的
【机 构】
:
东北大学轧制技术及连轧自动化国家重点实验室,
论文部分内容阅读
研究了初始凝固组织对Cr17铁素体不锈钢组织、织构、成形性的影响。分别对柱状晶、等轴晶铸坯进行热轧、退火、冷轧、退火实验。结果表明,等轴晶铸坯热轧试样在退火过程中的再结晶率高于柱状晶铸坯热轧试样。再经相同的冷轧退火工艺后,与柱状晶铸坯冷轧退火试样相比,等轴晶铸坯冷轧退火试样的{001}∥ND织构较弱,{111}∥NDγ织构较强,而且rm值较高。
The effect of initial solidified structure on the microstructure, texture and formability of Cr17 ferritic stainless steel was studied. The columnar crystal and equiaxed slab were hot rolled, annealed, cold rolled and annealed respectively. The results show that the re-crystallization rate of the hot-rolled sample of equiaxed billet during annealing is higher than that of hot-rolled sample of columnar billet. After the same cold rolling annealing process, compared with the cold rolled annealed samples, the {001} ∥ND texture of the equiaxed slab cold rolled annealed samples is weaker, the {111} ∥NDγ weaves Structure stronger, and higher rm value.
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