Influence of Dew Point on the Selective Oxidation, Microstructure and Mechanical Properties of a High-Al Low-Si Dual Phase Steel during Hot-Dip Galvanizing Process

被引：6
|
作者：
Deng, Yonggang [1 ]
Di, Hongshuang [1 ]
Misra, R. D. K. [2 ,3 ]
机构：
[1] Northeastern Univ, State Key Lab Rolling & Automat, Shenyang 110819, Liaoning, Peoples R China
[2] Univ Texas El Paso, Dept Met & Mat Engn, Lab Excellence Adv Steel Res, El Paso, TX 79968 USA
[3] Univ Texas El Paso, Ctr Struct & Funct Mat Res & Innovat, El Paso, TX 79968 USA
来源：
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES | 2018年 / 54卷 / 03期
关键词：
dew point; selective oxidation; microstructure; mechanical properties; dual phase steel; HIGH-STRENGTH; ELECTRON-MICROSCOPY; INTERNAL OXIDATION; SURFACE; KINETICS; SILICON;
D O I：
10.1134/S2070205118030243
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
The effect of dew point on the selective oxidation behavior, microstructure and mechanical properties of a high-Al low-Si dual phase steel is elucidated. The results showed that as dew point is increased from-30A degrees C to +5A degrees C, internal oxidation of alloying elements occurs, and consequently the mass of external oxides decreases, which improves the galvanisability of steel sheets. It was also observed that the dew point had an impact on the microstructure and mechanical properties of the experimental steel. With the increase of dew point, the decarburization layer on the surface was increased, leading to inferior mechanical properties. Compared with the industrial steel, the high-Al-low-Si DP steel exhibited excellent galvanisability under identical annealing conditions.
引用
收藏
页码：496 / 502
页数：7
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