摘要
通过高温氧化实验研究了超纯21%Cr铁素体不锈钢高温氧化层的生长情况,并采用开发的模拟铁素体不锈钢热轧粘辊实验方法研究了表面氧化对超纯21%Cr铁素体不锈钢热轧粘辊的影响,探讨了铁素体不锈钢的热轧粘辊机理.实验发现:超纯21%Cr铁素体不锈钢的炉生氧化铁皮较厚,而热轧过程中二次氧化铁皮生长较缓慢;锤头在循环轧制过程中出现的表面裂纹为热轧粘辊提供了形核地点;在高温变形过程中,表面氧化对铁素体不锈钢带钢表面具有保护作用,可以减轻热轧粘辊.
High-temperature oxidation thickening of an ultra purified 21% Cr ferritic stainless steel （FSS） was studied by high-temperature oxidation test. A new method for simulating the sticking phenomenon of FSS during hot rolling was developed to investigate the effects of surface oxidation on the sticking behavior. The sticking mechanism was also discussed. The results indicated that the oxidation scale formed in heating furnace is thick and the secondary scale formed during hot rolling is very thin. The cracks on the hammers which formed during cycling roiling and cooling are the nucleation sites for sticking. The oxidation scale has a protective effect on the surface quality of the slab during hot deformation, decreasing the sticking phenomenon.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2012年第2期195-198,共4页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(50734002)
关键词
超纯铁素体不锈钢
表面质量
高温氧化
粘辊
热轧
ultra purified ferritic stainless steel
surface quality
high-temperature oxidation
sticking
hot rolling
