Ti-Nb对Cr18超低碳铁素体不锈钢冷轧板成形性能的影响  

Effect of Ti-Nb on Formability of Annealed Cold Rolled Sheet of Ultra-Low Carbon Ferrite Stainless Steel Cr18

作　　者：孙丹[1] 陈伟庆[1] 何慎[2] 沈继程[2] 郑宏光[2] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]宝钢研究院不锈钢技术中心,上海201900

出　　处：《特殊钢》2009年第6期49-51,共3页Special Steel

摘　　要：研究了0～0.21%Ti和0～0.29%Nb对Cr18钢(%:0.008～0.009C、17.48～17.57Cr)的组织、再结晶织构、力学性能和成形性能的影响。结果表明,Nb稳定化退火冷轧板的晶粒较Ti稳定化退火冷轧板细小;Ti-Nb稳定化的冷轧板{111}〈112〉取向密度最大、Ti稳定化冷轧板次之,Nb稳定化冷轧板最小;Ti、Nb、Ti-Nb稳定化退火冷轧板应变硬化指数n值分别为1.55、1.12和1.48,因此Ti和Ti-Nb稳定化退火冷轧板的成形性良好。Effect of 0 - 0. 21% Ti and 0-0. 29% Nb on structure, reerystallization texture, mechanical properties and fonnability of ultra-low carbon ferrite stainless steel Cr18 （% ： 0. 008 -0. 009C, 17.48 - 17.57Cr） has been studied. Results show that the grain size of annealed cold rolled sheet of Nb stabilized steel is finer than that of Ti stabilized steel ; the { 111 } 〈 112 〉 orientation density of cold-rolled sheet by Ti-Nb stabilization is maximum, that by Ti stabilization is second and that by Nb stabilization is minimum; the strain-hardening exponent n- value of annealed cold-rolled sheet by Ti, Nb and Ti-Nb stabilization is respectively 1.55, 1.12 and 1.48, therefore the formability of annealed cold-rolled sheet by Ti and Ti-Nb stabilization is excellent.

关 键 词：Ti—Nb Cr18铁素体不锈钢 织构 成形性能 

分 类 号：TG335.12[金属学及工艺—金属压力加工]