退火温度对Cr17铁素体不锈钢成形性能的影响  

Effect of annealing temperature on formability of Cr17 ferritic stainless steel

作　　者：张聪[1] 赵爱民[1] 丁然[1] 孟祥[1] 李双娇 王彧薇 

机构地区：[1]北京科技大学冶金工程研究院,北京100083

出　　处：《金属热处理》2015年第4期113-116,共4页Heat Treatment of Metals

摘　　要：对Cr17铁素体不锈钢冷轧钢板进行了不同温度的退火试验,利用显微组织观察、电子背散射衍射(EBSD)技术及力学性能试验探讨了退火温度对冷轧钢板的显微组织、微观织构与成形性能的关系。结果表明,随着退火温度的提高,α纤维织构变弱,取向密度逐渐降低,而γ纤维的织构强点为{111}<112>不变,取向密度逐渐增强,r值增加。当冷轧钢板在1040℃退火时,r值最大。Annealing under different temperatures was carried out on Cr17 ferritic stainless steel cold-rolled sheet, and the relationships between annealing temperature and microstructure, texture and formability of the cold-rolled sheet were investigated by means of microstructure observation, electron back scattering diffraction （ EBSD） technology and mechanical test. The results show that with the increasing of annealing temperature, alpha fiber texture is weaker and its orientation density decreases gradually. γ fiber texture remains as{111} 〈112〉 and the orientation density increases, which lead to the increase of r value. When the cold-rolled sheet is annealed at 1040℃, r value reaches the maximum value.

关 键 词：铁素体不锈钢 冷轧 再结晶退火 织构 r值 

分 类 号：TG161[金属学及工艺—热处理]