Corrosion of press-hardened galvanized steel

Robert Autengruber; Gerald Luckeneder; Achim Walter Hassel

doi:10.1016/j.corsci.2012.04.048

Corrosion of press-hardened galvanized steel

Robert Autengruber, Gerald Luckeneder, Achim Walter Hassel (Editor)

Institute of Chemical Technology of Inorganic Materials

Research output: Contribution to journal › Article › peer-review

Abstract

Press hardening of hot-dip-galvanized steel sheet yields an innovative product with high strength and reduced weight with drastically increasing industrial importance. This process results in an austenitisation of the steel and a conversion of the 10 lm Zn layer into a 20 lm thick coating consisting of zinc saturated a-iron and C-FeZn-phases. A 5-times longer protection is found in cyclic corrosion tests. The mechanism is a combination of the increase of the coating thickness, cathodic protection and the barrier properties of simonkolleite in the corrosion products. Simonkolleite-Zn5(OH)8Cl2, hydrozincite- Zn5(CO3)2(OH)6 and akaganeite-b-FeOOH were identified as corrosion products by XRD, FT-IR and Raman spectroscopy.

Original language	English
Pages (from-to)	12-19
Number of pages	8
Journal	Corrosion Science
Volume	63
DOIs	https://doi.org/10.1016/j.corsci.2012.04.048
Publication status	Published - May 2012

Fields of science

204001 Inorganic chemical technology

JKU Focus areas

Engineering and Natural Sciences (in general)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.corsci.2012.04.048

Cite this

@article{2e79f1bf04254af8966fd6a0b1611b2a,

title = "Corrosion of press-hardened galvanized steel",

abstract = "Press hardening of hot-dip-galvanized steel sheet yields an innovative product with high strength and reduced weight with drastically increasing industrial importance. This process results in an austenitisation of the steel and a conversion of the 10 lm Zn layer into a 20 lm thick coating consisting of zinc saturated a-iron and C-FeZn-phases. A 5-times longer protection is found in cyclic corrosion tests. The mechanism is a combination of the increase of the coating thickness, cathodic protection and the barrier properties of simonkolleite in the corrosion products. Simonkolleite-Zn5(OH)8Cl2, hydrozincite- Zn5(CO3)2(OH)6 and akaganeite-b-FeOOH were identified as corrosion products by XRD, FT-IR and Raman spectroscopy.",

author = "Robert Autengruber and Gerald Luckeneder and Hassel, {Achim Walter}",

year = "2012",

month = may,

doi = "10.1016/j.corsci.2012.04.048",

language = "English",

volume = "63",

pages = "12--19",

journal = "Corrosion Science",

issn = "1879-0496",

}

TY - JOUR

T1 - Corrosion of press-hardened galvanized steel

AU - Autengruber, Robert

AU - Luckeneder, Gerald

A2 - Hassel, Achim Walter

PY - 2012/5

Y1 - 2012/5

N2 - Press hardening of hot-dip-galvanized steel sheet yields an innovative product with high strength and reduced weight with drastically increasing industrial importance. This process results in an austenitisation of the steel and a conversion of the 10 lm Zn layer into a 20 lm thick coating consisting of zinc saturated a-iron and C-FeZn-phases. A 5-times longer protection is found in cyclic corrosion tests. The mechanism is a combination of the increase of the coating thickness, cathodic protection and the barrier properties of simonkolleite in the corrosion products. Simonkolleite-Zn5(OH)8Cl2, hydrozincite- Zn5(CO3)2(OH)6 and akaganeite-b-FeOOH were identified as corrosion products by XRD, FT-IR and Raman spectroscopy.

AB - Press hardening of hot-dip-galvanized steel sheet yields an innovative product with high strength and reduced weight with drastically increasing industrial importance. This process results in an austenitisation of the steel and a conversion of the 10 lm Zn layer into a 20 lm thick coating consisting of zinc saturated a-iron and C-FeZn-phases. A 5-times longer protection is found in cyclic corrosion tests. The mechanism is a combination of the increase of the coating thickness, cathodic protection and the barrier properties of simonkolleite in the corrosion products. Simonkolleite-Zn5(OH)8Cl2, hydrozincite- Zn5(CO3)2(OH)6 and akaganeite-b-FeOOH were identified as corrosion products by XRD, FT-IR and Raman spectroscopy.

U2 - 10.1016/j.corsci.2012.04.048

DO - 10.1016/j.corsci.2012.04.048

M3 - Article

SN - 1879-0496

VL - 63

SP - 12

EP - 19

JO - Corrosion Science

JF - Corrosion Science

ER -