Abstract
The wettability of dual phase steels by liquid Zn-0.23 wt.%Al at 450 °C (723 K) was investigated using the dispensed sessile drop method. Dual phase steels of six different Si contents (0 wt.%, 0.12 wt.%, 0.18 wt.%, 0.3 wt.%, 0.5 wt.%, and 1.0 wt.%) annealed in a 15 %H2-N2 gas atmosphere at a dew point of-60 °C (213 K) were examined. As the Si content increased from 0 wt.% to 0.5 wt.%, the wettability worsened. However, as the Si content increased to 1.0 wt.%, the wettability improved to be better than that of the 0.3 wt.%Si steel. Based on the surface oxide analysis results using SEM, FT-IR, and TEM analyses, the effect of the surface oxide type on the wettability is discussed. Although the morphology of the nanometer-sized surface oxides did not change, the surface oxides changed from MnO to Mn2SiO 4 to MnSiO3 and then to SiO2 as the Si content increased. After comparison of the present results with the wettability of pure oxides, it was concluded that the coating property of the dual phase high strength steel was more closely related to the type of surface oxide.
| Original language | English |
|---|---|
| Pages (from-to) | 607-611 |
| Number of pages | 5 |
| Journal | Metals and Materials International |
| Volume | 17 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2011 Aug 1 |
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Keywords
- galvanization
- metals
- surface oxides
- transmission electron microscopy (TEM)
- wetting
ASJC Scopus subject areas
- Condensed Matter Physics
- Metals and Alloys
- Mechanics of Materials
- Materials Chemistry
Cite this
Effect of Si content on wettability of dual phase high strength steels by liquid Zn-0.23 wt.%Al. / Kim, Yunkyum; Lee, Joonho; Park, Joongchul; Jeon, Sun Ho.
In: Metals and Materials International, Vol. 17, No. 4, 01.08.2011, p. 607-611.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of Si content on wettability of dual phase high strength steels by liquid Zn-0.23 wt.%Al
AU - Kim, Yunkyum
AU - Lee, Joonho
AU - Park, Joongchul
AU - Jeon, Sun Ho
PY - 2011/8/1
Y1 - 2011/8/1
N2 - The wettability of dual phase steels by liquid Zn-0.23 wt.%Al at 450 °C (723 K) was investigated using the dispensed sessile drop method. Dual phase steels of six different Si contents (0 wt.%, 0.12 wt.%, 0.18 wt.%, 0.3 wt.%, 0.5 wt.%, and 1.0 wt.%) annealed in a 15 %H2-N2 gas atmosphere at a dew point of-60 °C (213 K) were examined. As the Si content increased from 0 wt.% to 0.5 wt.%, the wettability worsened. However, as the Si content increased to 1.0 wt.%, the wettability improved to be better than that of the 0.3 wt.%Si steel. Based on the surface oxide analysis results using SEM, FT-IR, and TEM analyses, the effect of the surface oxide type on the wettability is discussed. Although the morphology of the nanometer-sized surface oxides did not change, the surface oxides changed from MnO to Mn2SiO 4 to MnSiO3 and then to SiO2 as the Si content increased. After comparison of the present results with the wettability of pure oxides, it was concluded that the coating property of the dual phase high strength steel was more closely related to the type of surface oxide.
AB - The wettability of dual phase steels by liquid Zn-0.23 wt.%Al at 450 °C (723 K) was investigated using the dispensed sessile drop method. Dual phase steels of six different Si contents (0 wt.%, 0.12 wt.%, 0.18 wt.%, 0.3 wt.%, 0.5 wt.%, and 1.0 wt.%) annealed in a 15 %H2-N2 gas atmosphere at a dew point of-60 °C (213 K) were examined. As the Si content increased from 0 wt.% to 0.5 wt.%, the wettability worsened. However, as the Si content increased to 1.0 wt.%, the wettability improved to be better than that of the 0.3 wt.%Si steel. Based on the surface oxide analysis results using SEM, FT-IR, and TEM analyses, the effect of the surface oxide type on the wettability is discussed. Although the morphology of the nanometer-sized surface oxides did not change, the surface oxides changed from MnO to Mn2SiO 4 to MnSiO3 and then to SiO2 as the Si content increased. After comparison of the present results with the wettability of pure oxides, it was concluded that the coating property of the dual phase high strength steel was more closely related to the type of surface oxide.
KW - galvanization
KW - metals
KW - surface oxides
KW - transmission electron microscopy (TEM)
KW - wetting
UR - http://www.scopus.com/inward/record.url?scp=80053190395&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053190395&partnerID=8YFLogxK
U2 - 10.1007/s12540-011-0812-x
DO - 10.1007/s12540-011-0812-x
M3 - Article
AN - SCOPUS:80053190395
VL - 17
SP - 607
EP - 611
JO - Metals and Materials International
JF - Metals and Materials International
SN - 1598-9623
IS - 4
ER -