摘要
利用ＳＥＭ和ＥＰＭＡ研究了含０．２２％Ｓｉ钢板在含镍０．３％以下的几种锌浴中获得的镀层组织。研究结果表明：当锌浴含镍大于０．０７％时，ζ相层变薄而晶粒细化，ζ相柱状晶的晶间和ζ相前沿的η相中出现镍富集；当锌浴中镍含量≥０．２％，在η相中析出ＺｎＦｅＮｉ金属间化合物Γ２相的晶粒。文中还根据ＺｎＦｅＮｉ三元相图。
The microstructure of hot dip galvanized coatings of the steel sheet containing 0.22%Si by dipping in several zinc baths containing 0～0.3%Ni was studied by using SEM and EPMA. The result showed that, adding 0.07～0.12%Ni into the zinc bath, the ζ layer is thinned and the ζ crystal is fined, Ni is rich in the boundary of the columnar crystal of ζ layer and in the η phase in front of the ζ layer. Adding equal to or greater than 0.20%Ni into the zinc bath, some particles of Zn Ni Fe intermetallic compound are precipitated in the η layer. The reason that the coating microstructure is changed after adding Ni into the zinc bath is also discussed according to Zn Ni Fe ternary diagram.
出处
《中国有色金属学报》
EI
CAS
CSCD
1996年第4期87-90,100,共5页
The Chinese Journal of Nonferrous Metals
关键词
热镀锌
镀层
锌浴
镍合金
hot dip Zn Ni alloy coating hot dip galvanizing Zn Ni Fe compound
