退火温度对06Cr13不锈钢冷轧板织构和力学性能的影响

Effect of Annealing Temperature on Texture and Mechanical Properties of Stainless Steel 06Cr13 Cold-Rolled Sheet

06Cr13不锈钢(/%:0.03C,0.45Si,0.22Mn,0.020P,0.002S,12.20Cr)3.5mm热轧板经11道次冷轧成0.375 mm冷轧板。利用CCT-AV-Ⅱ模拟退火实验机研究了800~925℃退火对06Cr13不锈钢冷轧板的织构组分和力学性能的影响。结果表明,随着退火温度的升高,深冲性能有利的{111}织构组分含量上升,而不利组分{001}<110>,{114}<110>,{112}<110>,{112}<111>和{110}<110>含量总和下降;在875℃退火时,{111}<110>与{111}<112>织构组分含量的差值最大,{111}织构的均匀性最差;06Cr13不锈钢的强度和延伸率在875℃退火后表现出很明显的各向异性。综合分析,该06Cr13不锈钢冷轧板的适合退火温度为(850±10)℃。

The 3.5 mm hot-rolled plate of stainless steel 06Cr13（/%：0.03C,0.45Si,0.22Mn,0.020P,0.002S,12.20Cr）cold-rolls down to 0.375 mm cold-rolled sheet by 11 passes.The effect of 800~925℃annealing on texture ingredient and mechanical properties of stainless steel 06Cr13 cold-rolled sheet has been studied by using CCT-AV-Ⅱsimulation continuous annealing unit.Results show that with increasing annealing temperature the amount of{111}fiber texture being favourable for deep drawability increases,while the sum of amounts of{001}〈110〉,{114}〈111〉,{112}〈110〉,{112}〈111〉and{110}〈110〉texture being unfavourable for deep drawability decreases;as annealing at875℃,difference between{111}〈110〉and{111}〈112〉texture ingredient is largest and the uniformity of{111}fiber texture is poorest;and the obvious anisotropy of strength and elongation of stainless steel 06Cr13 cold-rolled sheet annealed at 875℃occurs.Based on comprehensive analysis the suitable annealing temperature for stainless steel 06Cr13cold-rolled sheet is（850±10）℃.