SPHC钢镀锌板线状缺陷形成初探  

Formation of Line Defect in SPHC Galvanized Sheet

作　　者：彭其春[1] 范丹萍[1] 童志博[1] 邹健[1] 

机构地区：[1]武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,湖北武汉430081

出　　处：《中国冶金》2014年第2期23-26,共4页China Metallurgy

摘　　要：通过进行SEM扫描、能谱分析及金相检测等方法对镀锌板线状缺陷进行了研究分析。研究认为,其形成过程为上浮不充分的簇状Al_2O_3夹杂物在铸坯中成为裂纹源。并在均热之前导致裂纹形成,然后在轧制过程中簇状Al_2O_3夹杂物再被压碎,形成长条链线状缺陷,这些线状缺陷在镀锌过程中被覆盖,从而形成镀锌板线状缺陷。By the means of scanning electron microscope（SEM）,Metallographic analysis and energy spectrum analysis,the linear defects of SPHC were studied.The cluster Al2O3 inclusions resided in liquid steel to be the crack source before the soaking,then were crushed in rolling process and formated long chain line defect.The linear defect were covered in galvanized process,so as to form the galvanized sheet line defect.

关 键 词：线状缺陷 SPHC 镀锌板 

分 类 号：TG142.15[一般工业技术—材料科学与工程]