冷却制度对430不锈钢氧化层结构的影响  

Effect of Cooling Condition on Structure of 430 Stainless Steel

作　　者：史培阳[1] 刘承军[1] 姜茂发[1] 

机构地区：[1]东北大学材料与冶金学院,辽宁沈阳110004

出　　处：《工业加热》2011年第2期49-51,共3页Industrial Heating

基　　金：高校博士学科点基金项目(200801450012);教育部科学技术重点项目(109048);中央高校基本业务费项目(N090402017)

摘　　要：以430不锈钢为原料,系统研究冷却制度对不锈钢氧化层结构的影响;不同冷却制度条件下430不锈钢表面氧化层组成均为Fe_2O_3和Cr_2O_3,但空冷条件下的试样衍射峰强度明显高于雾冷条件下的试样;同时氧化层外层较为致密,内层为多孔结构,而且外层为富铁相,内层为富铬相,此外在雾冷条件下,铬元素不仅分布在内层氧化物中,且在中间层也有一个富铬区。430 stainless steel is used as raw material in this paper and the effect of cooling condition on structure of 430 stainless steel is systematically studied; the oxide layer of 430 stainless steel is always composed of Fe2O3 and Cr2O3 with different cooling condition, but diffraction peak intensity of samples with air cooling is obvious higher than samples with fog cooling; meanwhile the outer oxide layer is dense and the inner oxide layer is porous structure, and the outer layer is iron-rich phase while the inner layer is chromium-rich phase. Moreover, with fog cooling condition, chromium is found not only in inner oxide but also in chromium-rich zone of interlayer.

关 键 词：430不锈钢 冷却制度 氧化层 结构 

分 类 号：TG178[金属学及工艺—金属表面处理]