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被引量：2

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

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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(?)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。 The tested and studied steel Cr22Mo （/%： 0. 005C, 0.40Si, 0. 20Mn, 0. 020P, 0. 010S, 22.0Cr, 1.0Mo, 0.41Cu, 0. 14Nb, 0. 19Ti, 0. 012 ON） 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 roiling 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 in- tensity of recrystallized texture I 111 I 〈 112 〉 increases, average plastic strain ratio r value increases and the plane anisot- ropy /kr decreases, and the increase of cold rolling reduction markedly improves the formability of cold-rolled annealed sheet of steel Cr22Mo.

作者周杰赵振铎廉晓洁范光伟王立新张晶晶成生伟 Zhou Jle;Zhao Zhenduo;Lian Xiaojie;Fan Guangwei;Wang Lixin;Zhang;Jlng mg;Cheng Shengwei(l State Key Laboratory.of Advanced Stainless Steel Material;Technology Center,Taiyuan Iron and Steel（Group）Co Ltd,Taiyuan 030003;Taiyuan Iron and Steel（Group）Co Ltd,Taiyuan 030003)

机构地区太原钢铁集团有限公司先进不锈钢材料国家重点实验室太原钢铁集团有限公司先进不锈钢材料国家重点实验室太原钢铁集团有限公司

出处《特殊钢》北大核心 2018年第5期70-74,共5页 Special Steel

关键词超纯铁素体不锈钢Cr22Mo 组织成形性织构冷轧压下率 Ultra-Clean Ferrite Stainless Steel Cr22Mo Structure Formability Texture Cold Rolling Reduction

分类号 TG142.71 [金属学及工艺—金属材料]

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参考文献2

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