Selective oxidation of dual phase steel after annealing at different dew points

被引：31

作者：

Cunha Lins, Vanessa de Freitas ^{[1
]}

Madeira, Laureanny ^{[1
]}

Carneiro Vilela, Jose Mario

Andrade, Margareth Spangler

Lopes Buono, Vicente Tadeu ^{[1
]}

Guimaraes, Juliana Porto

Alvarenga, Evandro de Azevedo

机构：

[1] Univ Fed Minas Gerais, BR-31270901 Belo Horizonte, MG, Brazil

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 13期

关键词：

Selective oxidation; Hot galvanized steel; Dual phase steel; X-ray photoelectron spectroscopy; Glow discharge optical emission spectroscopy; PHOSPHORUS;

D O I：

10.1016/j.apsusc.2011.01.126

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：

Hot galvanized steels have been extensively used in the automotive industry. Selective oxidation on the steel surface affects the wettability of zinc on steel and the grain orientation of inhibition layer (Fe-Al-Zn alloy) and reduces the iron diffusion to the zinc layer. The aim of this work is to identify and quantify selective oxidation on the surface of a dual phase steel, and an experimental steel with a lower content of manganese, annealed at different dew points. The techniques employed were atomic force microscopy, X-ray photoelectron spectroscopy, and glow discharge optical emission spectroscopy. External selective oxidation was observed for phosphorus on steel surface annealed at 0 degrees C dp, and for manganese, silicon, and aluminum at a lower dew point. The concentration of manganese was higher on the dual phase steel surface than on the surface of the experimental steel. The concentration of molybdenum on the surface of both steels increased as the depth increased. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：5871 / 5878

页数：8

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