A Study of Double-coating of Hot-Dip Aluminizing

被引：0
|
作者：
Hao, Chenggang [1 ]
Liang, Hanging [1 ]
Zeng, Jianmin [1 ]
Chen, Jun [2 ]
Chen, Ping [3 ]
Xiao, Jiangiang [4 ]
机构：
[1] Guangxi Univ, Key Lab Nonferrous Mat & New Proc Technol, Nanning 530004, Peoples R China
[2] Natl Aluminium Products Quality Supervis & Inspec, Henan, Peoples R China
[3] Alnan Aluminium Co Ltd, Nanning, Peoples R China
[4] Nanning Kalyuan Steel Tower Co Ltd, Nanning, Peoples R China
来源：
ADVANCED MATERIALS AND PROCESS TECHNOLOGY, PTS 1-3 | 2012年 / 217-219卷
关键词：
hot-dip aluminizing; water solvent auxiliary; double-coating; STEEL; MORPHOLOGY; INTERFACE;
D O I：
10.4028/www.scientific.net/AMM.217-219.1221
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Double-coating of hot-dip aluminizing is a process of protecting steel from being oxidized. The process is featured that the component is firstly hot-dip galvanized and finally hot-dipped with aluminum. The comparison of interface morphology was conducted for single hot-dip aluminizing and double-coating of hot-dip aluminizing on Q235 steel sheets. The metallographies of the cross-sections were observed and analyzed with SEM, XRD and EDS, respectively for the specimens prepared by the two processes. The experimental results indicate that there is no Zn-Fe alloy layer formed in the double-coating, and both single and double coating have similar phase compositions. However, the interface between the alloy layer and the steel matrix is smoother for the double-coating than that for single-coating.
引用
收藏
页码：1221 / +
页数：2
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