The effects of RE and Si on the thickness and cross section morphology of Zn-6Al-3Mg alloy coating
Hot-dip galvanized steels are widely used in modern industry.The corrosion resistance and formability of them are closely related to the thickness and cross section microstructure of the hot-dip coating.In this paper,the effects of Si and RE on the thickness of Zn-6Al-3Mg alloy coating (ZAM) were investigated.Steel sheets were coated by using an automated self-made laboratory hot-dip galvanizing simulator.The thickness and cross section microstructure of ZAM coating alloyed with different content of Si and RE were characterized by using optical microscope and SEM,and element distribution was study by EDS.The results demonstrated that the reaction between Al from the bath and Fe form the steel sheets was suppressed by the addition of 0.1 mass% Si to the Zn-6Al-3Mg bath,and the addition of RE effectively decreased the thickness of coating by means of improving the viscosity of the Zinc bath.Under the combined effects of Si and RE,the thickness of Zn-6Al-3Mg alloy coating went down from 33 μm to 10.1 μm.
Hot-dip galvanized steels Zn-6Al-3Mg alloy coating corrosion resistance formability
Shiwei Li Bo Gao Ganfeng Tu Shuchen Sun Shaohua Yin Liang Hu
School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China
国际会议
中国微米纳米技术学会第14届学术年会、第3届国际年会暨第6届微米纳米技术“创新与产业化国际研讨与展览会(CSMNT2012 & ICMAN2012)
杭州
英文
1-7
2012-11-04（万方平台首次上网日期，不代表论文的发表时间）