热浸镀锌工艺对IF440高强钢镀层抑制层组织的影响Influence of hot dip galvanizing process on inhibition structure of IF440 steel
陈斌锴,张启富,郝晓东,仲海峰,俞钢强
摘要(Abstract):
通过SEM和AFM研究了IF440高强钢钢板入锅温度和浸镀时间对镀层抑制层组织结构的影响。结果表明,抑制层的组织结构分为粗晶区Fe2Al5相和细晶区FeAl3相,并且随钢板入锅温度升高和浸镀时间增加,细晶区晶粒逐渐长大,直至与粗晶区晶粒尺寸一致,抑制层晶粒粗化,致密性下降致使其抑制作用降低。IF440高强钢适宜热镀锌工艺:钢板入锅温度为460~470℃,浸镀时间为4~6 s。
关键词(KeyWords): IF440高强钢;热镀锌工艺;抑制层;组织
基金项目(Foundation): 北京市科技计划项目(D07010300700702)
作者(Author): 陈斌锴,张启富,郝晓东,仲海峰,俞钢强
DOI: 10.13289/j.issn.1009-6264.2014.05.036
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