Role of Al in Zn bath on the formation of the inhibition layer during hot-dip galvanizing for a 1.2Si-1.5Mn transformation-induced plasticity steel

被引:24
作者
Wang, Kuang-Kuo [1 ]
Hsu, Chiung-Wen [1 ]
Chang, Liuwen [1 ]
Gan, Dershin [1 ]
Yang, Kuo-Cheng [2 ]
机构
[1] Natl Sun Yat Sen Univ, Dept Mat & Optoelect Sci, Res Ctr Phys Properties & Microstruct Met, Kaohsiung 80424, Taiwan
[2] China Steel Corp, Steel Res & Dev Dept, Kaohsiung 81233, Taiwan
关键词
Steel; Zinc; TEM; XPS; Selective oxidation; Interfaces; SELECTIVE OXIDATION; DEW-POINT; TRIP; SI; OXIDES; ATMOSPHERE; MORPHOLOGY; INTERFACE; BEHAVIOR; KINETICS;
D O I
10.1016/j.apsusc.2013.08.077
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
This study investigated the interaction between the Al in the Zn bath and the surface oxides formed by selective oxidation on a 1.2Si-1.5Mn TRIP steel during hot-dip galvanizing. XPS and TEM were employed for characterization. The results indicated that the amorphous xMnO center dot SiO2 oxide could react with Al to form a Si-Mn-Al-containing oxide. The crystalline MnSiO3 and Mn2SiO4 oxides could be largely reduced by Al to form holes in the oxide film. Consequently, the steel covered by a layer of mixed xMnO center dot SiO2 and MnSiO3 could form a continuous Fe2Al5 inhibition layer and showed the highest galvanizability among the three samples examined. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:458 / 468
页数:11
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