Orientation Dependence of Cracking in Hot-Dip Zn-Al-Mg Alloy Coatings on a Sheet Steel

Y. B. Park; I. G. Kim; S. G. Kim; W. T. Kim; T. C. Kim; M. S. Oh; J. S. Kim

doi:10.1007/s11661-016-3947-z

Orientation Dependence of Cracking in Hot-Dip Zn-Al-Mg Alloy Coatings on a Sheet Steel

Y. B. Park^*
, I. G. Kim
, S. G. Kim
, W. T. Kim
, T. C. Kim
, M. S. Oh
, J. S. Kim

^*Corresponding author for this work

Metallurgical System Engineering

Sunchon National University
Kunsan National University
Cheongju University
POSCO

Research output: Contribution to journal › Journal article › peer-review

17 Scopus citations

Abstract

The present study was aimed at investigating a basic cause of cracking in hot-dip Zn-Al-Mg alloy coatings on an extra deep drawing quality sheet steel. The electron backscattering diffraction technique was employed to examine the crystallographic planes of the cracks generated before and after bending deformation of the coated steel sheets. It was clarified that the occurrence of cracking in the Zn-Al-Mg alloy coatings absolutely depends on the orientation of the primary Zn and eutectic Zn alloy phases. Finally, a cracking mechanism was proposed on the basis of the anisotropy of thermal expansion and the Young’s modulus in the phases constituting the coatings.

Original language	English
Pages (from-to)	1013-1020
Number of pages	8
Journal	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume	48
Issue number	3
DOIs	https://doi.org/10.1007/s11661-016-3947-z
State	Published - 2017.03.1

Access to Document

10.1007/s11661-016-3947-z

Cite this

@article{26cd131ebbc641f2b0332c588fecb370,

title = "Orientation Dependence of Cracking in Hot-Dip Zn-Al-Mg Alloy Coatings on a Sheet Steel",

abstract = "The present study was aimed at investigating a basic cause of cracking in hot-dip Zn-Al-Mg alloy coatings on an extra deep drawing quality sheet steel. The electron backscattering diffraction technique was employed to examine the crystallographic planes of the cracks generated before and after bending deformation of the coated steel sheets. It was clarified that the occurrence of cracking in the Zn-Al-Mg alloy coatings absolutely depends on the orientation of the primary Zn and eutectic Zn alloy phases. Finally, a cracking mechanism was proposed on the basis of the anisotropy of thermal expansion and the Young{\textquoteright}s modulus in the phases constituting the coatings.",

author = "Park, \{Y. B.\} and Kim, \{I. G.\} and Kim, \{S. G.\} and Kim, \{W. T.\} and Kim, \{T. C.\} and Oh, \{M. S.\} and Kim, \{J. S.\}",

note = "Publisher Copyright: {\textcopyright} 2017, The Minerals, Metals \& Materials Society and ASM International.",

year = "2017",

month = mar,

day = "1",

doi = "10.1007/s11661-016-3947-z",

language = "English",

volume = "48",

pages = "1013--1020",

journal = "Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science",

issn = "1073-5623",

number = "3",

}

TY - JOUR

T1 - Orientation Dependence of Cracking in Hot-Dip Zn-Al-Mg Alloy Coatings on a Sheet Steel

AU - Park, Y. B.

AU - Kim, I. G.

AU - Kim, S. G.

AU - Kim, W. T.

AU - Kim, T. C.

AU - Oh, M. S.

AU - Kim, J. S.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - The present study was aimed at investigating a basic cause of cracking in hot-dip Zn-Al-Mg alloy coatings on an extra deep drawing quality sheet steel. The electron backscattering diffraction technique was employed to examine the crystallographic planes of the cracks generated before and after bending deformation of the coated steel sheets. It was clarified that the occurrence of cracking in the Zn-Al-Mg alloy coatings absolutely depends on the orientation of the primary Zn and eutectic Zn alloy phases. Finally, a cracking mechanism was proposed on the basis of the anisotropy of thermal expansion and the Young’s modulus in the phases constituting the coatings.

AB - The present study was aimed at investigating a basic cause of cracking in hot-dip Zn-Al-Mg alloy coatings on an extra deep drawing quality sheet steel. The electron backscattering diffraction technique was employed to examine the crystallographic planes of the cracks generated before and after bending deformation of the coated steel sheets. It was clarified that the occurrence of cracking in the Zn-Al-Mg alloy coatings absolutely depends on the orientation of the primary Zn and eutectic Zn alloy phases. Finally, a cracking mechanism was proposed on the basis of the anisotropy of thermal expansion and the Young’s modulus in the phases constituting the coatings.

UR - https://www.scopus.com/pages/publications/85008640843

U2 - 10.1007/s11661-016-3947-z

DO - 10.1007/s11661-016-3947-z

M3 - Journal article

AN - SCOPUS:85008640843

SN - 1073-5623

VL - 48

SP - 1013

EP - 1020

JO - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

JF - Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

IS - 3

ER -

Orientation Dependence of Cracking in Hot-Dip Zn-Al-Mg Alloy Coatings on a Sheet Steel

Abstract

Access to Document

Other files and links

Fingerprint

Cite this