摘要
利用普通金相识别技术和电子探针成分分析对410S、430、409L铁素体不锈钢热轧板夹杂物的类型、形貌特征、来源及其对钢的性能影响作综合检测和分析.结果表明:410S和430不锈钢板材所含夹杂物主要为CaO-Si O2-Al2O3-MgO系复合夹杂物;409L不锈钢板材中夹杂物主要为Ti(C、N)和Al N.夹杂物主要来源于AOD脱氧产物、钢液的二次氧化、炉衬材料和耐火材料的腐蚀剥离等.3种不锈钢的纵向和横向的力学性能相差不大;但若夹杂物较多且分布不均匀时会形成明显的点蚀和分层剥蚀.
The types,shape,and origin of the non-metallic inclusions in 410S,430 and 409L hot-rolled stainless steel plate and their influence on the properties of steel were tested and analyzed by means of OM and EPMA.The results showed that CaO-SiO2-Al2O3-MgO,a kind of brittle compound oxide,was the main inclusion in 410S and 430.The inclusions in 409L stainless steel were Ti（C、N） and AlN.Inclusions in ferritic stainless steels came from deoxidizing production,secondary oxidization of liquid steel,and corrosion peeling of furnace lining material and refractory material.The mechanical properties of three kinds of stainless steel along longitudinal and transverse veins were of little difference.If the quantities of inclusions were large and distributed non-uniformly obvious pitting and the lamination disintegration would be formed.
出处
《兰州理工大学学报》
CAS
北大核心
2010年第6期5-8,共4页
Journal of Lanzhou University of Technology
基金
甘肃省有色金属新材料重点实验室开放基金(SKL05011)
关键词
不锈钢
夹杂物
来源
性能
ferritic stainless steel
inclusions
origin
property
