Abstract: Efiect of annealing at 700～900 ℃ on structure and mechanical properties of 00Cr12Ti steel  1 mm sheet produced by 25 kg vacuum induction funace melting,7 passes hot rolling to 3 mm plate and cold rolling process has been  studied. Results showed that with annealing at 850 ℃ for 2 min the cold rolled sheet has excellent comprehensive mechanical  properties-  tensile  strength  ≥400  MPa,elongation  34.5%,work-hardening  exponent  n  0.26  and  plastic  strain  ratio  r 1. 1;and  with  electro  backscattering  diffraction(EBSD)analysis  it  was  obtained  that  the  most{111}  orientation  was  obtained as cold rolled sheet annealed at 850 ℃ and the steel recrystallized completely.

Key words: Ferritic Stainless Steel,Annealing Process,Mechanical Properties,Orientation Distribution

摘要： 研究了700～900℃退火对25 kg真空感应炉冶炼、7道次热轧成3 mm板再冷轧成1 mm板的00Cr12Ti钢的组织和力学性能的影响。结果表明,850℃2 min退火,冷轧板具有良好的综合力学性能,抗拉强度≥400 MPa,伸长率34.5%,加工硬化指数n值0.26,塑性应变比r值1.1;通过电子背散射衍射技术(EBSD)分析得出冷轧板850℃退火时{111}取向最多,再结晶充分。

关键词: 铁素体不锈钢, 退火处理 , 力学性能, 取向分布