用扫描电镜,透射电镜和金相技术及极化曲线测定等方法,研究了退火前后冷轧变形量对1050铝基PS版微观组织及电解腐蚀性能的影响.结果表明,位错密度大、分布均匀、第二相颗粒多、细小弥散分布的板基电蚀性能好.退火前冷轧变形量的提高,能够促使沉淀相的弥散析出,位错密度则随着最终冷轧变形量的增加而增加.板基在1.2 mm厚度进行退火处理后既能获得大量细小、弥散分布的第二相粒子,又能得到较高的位错密度,因而提高了板基的电蚀性能.

By means of SEM,TEM,metallographic microscopy and testing of polarization curves,the effects of cold deformation before and after intermediate annealing on microstructure and electrolytic corrosion properties of PS plate were analyzed.The electrolytic corrosion properties of board base were good when it had uniform dislocation,high dislocation density,and large quantity of thin and uniform distribution of second phase particles.The increase of cold rolling deformation before annealing could promote dispersed separation of precipitated phase and the density of dislocation increased with the increase of final cold rolling.Plate base after treated with annealing at the thickness of 1.2 mm obtained not only a lot of thin,uniform distribution of second phase particles but also high density and uniform dislocation,and thus the properties of electrolytic corrosion of plate were improved.