Study on growth factors of intermetallic layer within hot-dipped 25% Al-Zn alloy coating on steel

被引：3

作者：

Li, Y ^{[1
]}

Ma, Y

Hou, BR

Feng, FL

Wei, XJ

机构：

[1] Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China

[2] Northeastern Univ, Shenyang 110006, Peoples R China

来源：

BULLETIN OF MATERIALS SCIENCE | 2001年 / 24卷 / 03期

关键词：

galvanization by hot-dipping; intermetallic layer; 25% Al-Zn alloy coating;

D O I：

10.1007/BF02704926

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

25%Al-Zn alloy coating performs better than hot dip galvanized coating and 55%Al-Zn-Si coating with regard to general seawater corrosion protection. This study deals with the interfacial intermetallic layer's growth, which affects considerably the corrosion resistance and mechanical properties of 25%Al-Zn alloy coatings, by means of three-factor quadratic regressive orthogonal experiments, The regression equation shows that the intermetallic layer thickness decreases rapidly with increasing content of Si added to the Zn-Al alloy bath, increases with rise in bath temperature and prolonging dip time. The most effective factor that determined the thickness of intermetallic layer was the amount of Si added to Zn-Al alloy bath, while the effect of bath temperature and dip time on the thickness of intermetallic layer were not very obvious.

引用

页码：301 / 304

页数：4