Effect of Cold Rolling Reduction on Texture and Formability of Ultra-Clean Ferrite Stainless Steel Cr22Mo

Special Steel ›› 2018, Vol. 39 ›› Issue (5): 70-74.

Special Issue: 铁素体不锈钢

Effect of Cold Rolling Reduction on Texture and Formability of Ultra-Clean Ferrite Stainless Steel Cr22Mo

Zhou Jie^1,2, Zhao Zhenduo^1,2, Lian Xiaojie^1,2, Fan Guangwei^1,2, Wang Ldxin³, Zhang Jingjing^1,2 ，Cheng Shengwei^1,2

1 State Key Laboratory of Advanced Stainless Steel Materials, 2 Technology Center, Taiyuan Iron and Steel (Group) Co Ltd, Taiyuan 030003；
3 Taiyuan Iron and Steel (Group) Co Ltd, Taiyuan 030003)

Received:2018-04-23 Online:2018-10-01 Published:2022-05-30

冷轧变形率对超纯铁素体不锈钢Cr22Mo织构和成形性能的影响

周杰^1,2，赵振铎^1,2，廉晓洁^1,2，范光伟^1,2, 王立新³，张晶晶^1,2, 成生伟^1,2

太原钢铁(集团)有限公司1先进不锈钢材料国家重点实验室;2技术中心，太原030003；
3太原钢铁(集团)有限公司，太原030003

作者简介:周杰(1987-)，男，硕士(2012年北京科技大学)，副研究员,工程师,2010年山西省中北大学(本科)毕业，不锈钢加工制造与组织研究。
基金资助:
山西省第四批青年拔尖人才支持计划项目 (2016006)资助

Abstract

Abstract: The tested and studied steel Cr22Mo (/% ： 0.005C, 0.40Si, 0.20Mn, 0.020P, 0.010S, 22.0Cr, 1.0Mo, 0.41 Cu, 0. 14Nb, 0.19Ti, 0.012 0N) is produced by 90 t BOF-VOD-LF-200 mm slab casting-hot rolling to 5.0 mm plate-annealing and cold rolling to 1.5 ~ 0.5 mm sheet with cold rolling reduction 70% ~ 90% , and the cold-rolled sheet is annealed at 1 000 °C. The effect of cold rolling reduction on structure, texture and mechanical properties of steel Cr22Mo is studied by optical microscope, X-ray diffractometer (XRD) and universal tensile testing machine. The results show that with increasing cold rolling reduction the structure of cold-rolled and cold-rolled-annealed sheet is finer, the intensity of recrystallized texture {111}increases, average plastic strain ratio r value increases and the plane anisotropy △r decreases, and the increase of cold rolling reduction markedly improves the fbimability of cold-rolled annealed sheet of steel Cr22Mo.

摘要： 试验研究的Cr22Mo钢(/%:0.005C,0.40Si,0.20Mn,0.020P,0.010S,22.0Cr,1.0Mo,0.41Cu,0.14Nb,0.19Ti,0.0120N)经90 t BOF-VOD-LF-200 mm板坯连铸-热轧成5.0 mm板-退火并冷轧成1.5～0.5 mm板,冷轧变形率为70%～90%,冷轧板经1000℃退火。利用光学显微镜、X-射线衍射仪(XRD)和万能拉伸试验机研究了冷轧变形率对Cr22Mo钢组织、织构和力学性能的影响。结果显示,随着冷轧变形率的增大,冷轧和冷轧退火板的组织细化,再结晶织构{111}<112>强度增加,平均塑性应变比(r)值增加,平面各向异性△r值降低,冷轧压下率的增大显著改善了Cr22Mo钢冷轧退火薄板的成形性能。

关键词: 超纯铁素体不锈钢Cr22Mo, 组织, 成形性, 织构, 冷轧压下率

Zhou Jie, Zhao Zhenduo, Lian Xiaojie, Fan Guangwei, Wang Ldxin, Zhang Jingjing, Cheng Shengwei, . Effect of Cold Rolling Reduction on Texture and Formability of Ultra-Clean Ferrite Stainless Steel Cr22Mo[J]. Special Steel, 2018, 39(5): 70-74.

周杰, 赵振铎, 廉晓洁, 范光伟, 王立新, 张晶晶, 成生伟. 冷轧变形率对超纯铁素体不锈钢Cr22Mo织构和成形性能的影响[J]. 特殊钢, 2018, 39(5): 70-74.

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Effect of Cold Rolling Reduction on Texture and Formability of Ultra-Clean Ferrite Stainless Steel Cr22Mo

冷轧变形率对超纯铁素体不锈钢Cr22Mo织构和成形性能的影响

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