00Cr12Ti?????岻?????????EBSD?о?

 研究了冷轧00Crl2Ti汽车用铁素体不锈钢的试验钢板的再结晶晶粒显微织构、晶界角度分布和晶粒尺寸及其与力学性能的关系，采用两种不同保温时间的工艺退火试制出退火样，将退火样品首先经线切割、研磨和抛光制备成金相试样，然后，在光学显微镜观察两种退火工艺下的晶粒大小；同时采取EBSD技术扫描获取晶粒取向与亚结构分布图。试验结果表明：两种退火工艺钢板再结晶晶粒的显微织构、晶界角度分布和晶粒尺寸上存在着差异，这种差异印证出两种退火工艺钢板力学性能的差别。此外，利用EBSD还对两种退火工艺的再结晶程度作了分析。

Investigated on EBSD of Microstructure in 00Cr12Ti Ferritic Stainless Steel

The relationship among the recrystal grain microstructure, grain boundary angles distributions, grain size and mechanical properties of experimental ferritic stainless steel of cold rolling were studied. Two kinds of annealing technologies that hold temperature for different were adopted to make the annealing samples successful. Firstly the wire-electrode cutting was used to cut the samples into pieces, then ground and polished, finally it was made to become metallographic phase sample. The samples were investigated by metallographic microscope and electron back-scatter diffraction （EBSD）. The results show that the two kinds of ferritic stainless sheets are different in the recrystal grain microstrueture, grain boundary angles distributions and grain size; it leads to the difference in mechanical properties between two kinds of annealing technology of sheets. Furthermore, the degree of recrystal- ization of the two kinds of ferritic stainless sheets was analyzed utilizing EBSD.