Effect of Nickel Precoating on Wettability of Twinning-Induced Plasticity Steels by Liquid Zn-0.23 Wt Pct Al

Yunkyum Kim, Joonho Lee, Kwang Soo Shin, Sun Ho Jeon, Kwang Geun Chin

Research output: Contribution to journalArticle

Abstract

The effect of the nickel precoating on the wettability and the corresponding coating property of twinning-induced plasticity steel (17 wt pct Mn-1.2 wt pct Al-0.1 wt pct Si-0.5 wt pct C) by liquid Zn-0.23 wt pct Al were investigated. Annealing and Zn coating experiments were carried out in a galvanization simulator, and Zn wetting experiments were performed with a dispensed drop test machine. The experimental results showed that nickel precoating improved the Zn wetting property. SEM, XPS, and TEM analyses showed that nickel precoating decreased the thickness of surface oxides and thus improved the Zn coating property. It was speculated that oxygen adsorption on the nickel surface might be suppressed. In addition, Al2O3 was found just below the nickel precoating layer, and this indicated that the oxygen potential in the subsurface region was considerably decreased.

Original languageEnglish
Pages (from-to)4960-4969
Number of pages10
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume47
Issue number10
DOIs
Publication statusPublished - 2016 Oct 1

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Twinning
Plasticity
Wetting
Nickel
Steel
Liquids
Coatings
Oxygen
X ray photoelectron spectroscopy
Simulators
Experiments
Annealing
Transmission electron microscopy
Adsorption
Scanning electron microscopy
Oxides

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Effect of Nickel Precoating on Wettability of Twinning-Induced Plasticity Steels by Liquid Zn-0.23 Wt Pct Al. / Kim, Yunkyum; Lee, Joonho; Shin, Kwang Soo; Jeon, Sun Ho; Chin, Kwang Geun.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 47, No. 10, 01.10.2016, p. 4960-4969.

Research output: Contribution to journalArticle

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